I'm a mech, these engines are bulletproof as are their larger cousins. From the few issues I've seen with these Toyota V8s it tends to be oil related. Either oil was not changed at regular intervals or it was run very low on oil. Even the toughest of Toyota products willl suffer failure without lubrication. I would rate these V8 motors as some of the finest ever built.
@@yuvi018 there is no timing chain interval. The chains will last the entire life of the engine. You only replace timing belts, this engine does not have that
These engine autopsy's are so interesting. Thanks for taking your time to educate us. I'm an old GM and Ford guy so the insides of a Lexus engine is something I've never seen.
@@robc8468 so that goes for all manufacturers, right? Does'nt mean that Toyota is bulletproof. Think of all the issues they have with oil consumption past 15000 miles or so.
@@michaellehto1697 I do agree this would apply to any manufacturer. I personally have never owned a Toyota, nor I am a Toyota fanboy as stated in my original post. I own 3 Mopars Two Pentistar 3.6 L V-6 and one 5.7 Hemi.
Gorgeous. I like how they still make lots of cast metal parts that will live longer than I will if they get basic maintenance. No throw away valve covers, etc. It makes sense that the resale on a 15 year old IS is five times a 15 year old Audi where all these parts are plastic ready to crumble when you touch them.
Dude. I know this is an older video of yours. I watch your content all the time. and now since I have a 2007 LS460, this video is helping me. Great work as always brother.
@@Shane-zx4ps Nope...very different engine- it's a UZ engine, specifically the 2UZ-FE which was produced both with and without VVT-i and has a cast-iron block.
Thank you for the opportunity to see the insides of this engine. Although it suffered a catastrophic failure, it is definitely an extremely well designed engine.
Toyota isn't the end-all be-all of reliability anymore. Even they are slipping, succumbing to the recurring revenue stream generated by cars designed to last about as long as the warranty/payment plan. Nobody makes a good car anymore.
@@TestECull this motor is from 10+ years ago and is to date one of the most reliable V8s ever (at least mechanically). Also, Lexus is still top dog in terms of reliability even today, especially with their V8s.
😢😭Check the oil filter housing cap, it should have a metal tube with holes in it, stops the oil filter from collapsing and causing oil starvation to oil pump and subsequent engine failure. This tube comes out at times with filter and if not noticed and put back in will ensure, not today but soon your engine will seize. Ask me how i know😓
Excellent teardown job with pinpoint accuracy in your narration. I own a 2007 LS460 and was amazed at the compactness of the V8 engine, but your video makes me sleep better now because it is obviously a very well engineered masterpiece of ICE. Looking forward to your future videos, and please do a teardown of an EV system soon. Thank you!
Another advantage of using the “cam plate” is you can optimize that part for its bearing properties, and the head proper for, say, retaining valve seats and other things.
As a old tech forensic teardowns where my favorite jobs. A tip for someone doing a home teardown never use power tools to break bolts. Part of the process is checking for loose bolts.
Done a few tear downs with power tools, I usually use a weaker one impact to remove fasteners. The weaker it is the more you’ll tell bolts are loose or not and it makes the job quicker! I like your thinking though!! I work flat rate as a tech so tearing engines down isn’t really what I get to do but if I do I gotta do it quick and the weak impact will help identify loose fasteners as well
@@tx4runner459very good tip - what do you consider a weak impact for my reference? Might try this on my next project (whenever it gets started- who knows) a 1/4 dewalt ratchet or something similar is what I am thinking
Have a 3800 Buick engine in my Aussie Holden. After 20 years of use apart from oil and filters ,plugs it has never been touched. Plain and very simple, an excellent motor
I have a 94 Pontiac Trans Am I bought new. It has 338.000 miles on it . The 350 LT1 ENGINE has never been touched. Even the timing chain is original. Runs like new. Sounds perfectly healthy. 3000 mile oil changes, Castrol GTX. Uses no oil, has never failed California emissions test. THIS IS A RELIABLE ENGINE! 😁
Specific oils for most engines these days, making oil changes very critical. Trusting your expensive vehicle to the "cheapest oil change in town" joint might be the worst mistake you'll ever make. Dealers are also capable of screwing up.
Just do it yourself. Taking anything to any mechanic these days is a big gamble. I've found most dealerships to be more incompetent than those cheap oil places. Had a Toyota dealership tell me my fuel injection system was throwing codes and it would cost me 2500.00 to replace it.. car came from the factory with a carburetor.
@@rustbeltrobclassic2512This is so true. I have personally seen cars severely under and overfilled with oil at dealerships. People have the misconception that dealerships are the best places for their car care. But often, with mundane but important tasks like oil changes, they don't have their a-level technicians doing that stuff, but usually some idiot highschool dropout.
My son took my Subaru to the dealership for a recall and I had the oil changed by them at the same time. When he returned I checked the oil, it was a full quart short. Nothing catched the dipstick.
The shop that changes my oil , you stay in the car. You can watch them pour the new oil in. Before you leave they bring the dipstick to you, and show you its at the full mark. Thats how all places should do it!!
Totalled my LS460 in late 2020. Seeing this engine almost makes me want another. Its a stout piece. 6 bolt mains in since 1990. Only Chevy with their(Lotus) ZR1 engine was doing that back then.
@gchampi2 yeah. My bad. A buddy of mine who managed a boat shop for a while,recently chatted about it.He asked if I knew who built it,and I did answer him correctly.
Every video of yours I watch, I learn more about engines. One thing that I learn over and over... if your engine gets oil starved it isn't going to last long.
Glad to see a Toyota motor teardown. Got a request for a future video: a Jeep 4.0 inline 6. I know it's probably not a big money making engine but I would love to see that engine torn down.
Yes, I would like to see a Kia/Hyundai 2.0t Theta II. These are the ones now with lifetime warranties as long as u maintain them. They had a class action suit. Kia/Hyundai say they didnt clean all the excess debris out after machining. I dont believe that. First its 8 years worth of cars, and 2nd some people are on 3rd and 4th engines. I would like to see if u could see a design flaw during disassembly.
what i am thinking, min wage oil change place. drained oil and forgot to fill. prob had some manager up their ass about "time" and or low information type worker.
@@Dratchev241 It's not just the quick places. I have a 2018 V8 Mustang. The 18s went to 10 quarts while the 17s and back used 8. The Ford service manager misunderstood me when I said I'd do it myself and it got changed. I get home and check it and sure enough it's 2 quarts low. I take my F150 in and look at my service writeup and it says 10W30 for the change when it calls for 5W20. I call them up to verify and he says just bring it in and we'll change it again. I get home, check the level and its at the add line. Needless to say I'll being doing my own oil changes from here on out using full synthetic. The F150 is easy, the Mustang will require a little more work to get it jacked up but still not bad.
Which just pi**es me off. Ruined a perfectly good, clean, good shape engine because they did the oil change wrong. It's a major reason why I change it myself. I know 1) it's done 2) right 3) with the amount and brand of oil I need/want. If that were my car I'd probably sue with a vengeance.
Same thing happened to a ls460 I just did a motor swap on. Pan had plastic guide pieces and babbit. Job was a nightmare, a lot of difficult to access hardware and connectors because of the engine size. The rear O2 connectors are inside the cabin under the carpet. The catalytic converters are part of the manifolds. Starter requires the removal of the passenger side manifold to replace. It's a subframe out job, engine and trans. Really the only way to work on it.
Dude I've been binging your videos since I found you. Like a dream channel to me. I'm really good at taking things apart to look at what's inside when I was a kid, just ask my dad, took apart his very expensive Denon receiver to see how it worked, he was soo proud I destroyed his receiver he got a special locking shelf so I couldnt do it again!
That looks like a situation where a Quickie Lube place drained the old oil out...but never put new oil in. Owner probably drove it that way for about ten miles until the engine destroyed itself.
I wouldn't put it past a dealership to do something this stupid either. More likely maybe. Dealerships usually have at least one good technician, but they're usually never the ones doing oil changes.
great video, doing research on GX460 and this video taught me that in this gen/engine they dispensed with timing belts and went to chains so the truck I'm looking at doesn't need as exensive maintenance as the 470's at it's mileage interval. thanks!
I admire your skillset and knowledge a lot. I've been binge watching your tear down videos and they are the best I've found on TH-cam. I grew up in a family that worked on engines a lot, but I never got into it because I was too young to do the work myself, and was convinced I needed to go to college instead of working with my hands. Your channel has reignited my love for engines, and I love watching your videos and learning from what you're doing. You have the perfect balance of information and process, and teaching about what you look for to see whats wrong with an engine. Love it. Keep it up!
Ill bet that oil filter housing got hit and all the oil came out while the owner was still driving the car. That is the only explanation that makes sense to me, with a such a clean engine and spun bearings.
@@ReubenHorner if the oil filter got hit, and you lose all oil, then the oil pressure sensor will be activated and you will see oil pressure warning light on the dash.
@@davidjacobs8558 I have at least three people in my immediate family who, if an oil light came on, would just shrug their shoulders and happily keep driving because "they gotta get to where they are going". That's if they notice the light at all. I call them car killers.
Great videos and please keep them coming. Fascinating to see the engineering in these engines. I used to work for a UK truck manufacturer and we occasionally got engines come in for warranty claims looking like this with new filters and lovely clean oil in them. Usually had been run way over the oil change mileage, or low on oil, started to rattle and only then had the oil and filters done. Then the owner appears at our dealership all innocent and puzzled as to why his engine failed and can we replace it under warranty please!!
Thank you for showing this ! I rarely see the dismantling of an engine I have in a vehicle, I have a 2007 Lexus LS 460 L with this engine currently with just under 90k miles and I am so impressed with seeing the build quality of this engine, it matches the build quality of the entire car and you can see why so many are still on the road with very few repairs ever needed, so unlike most other car makes.
The LS 460 is a amazing engine, I've seen some at the auction 300k-400k miles still running and driving. Mine has 223k miles and runs amazing and the engine has 0 blow by.
I have a 2007 LS460 with 277k miles now which I got at 67k miles. Just pulled a 5.5 second 0-60 verified by Dragy app. 8 speed shifts like butter and is original. Call me a Toyota fan boy, but I've owned vehicles from every car manufacturer in the last 25 years, nothing beats maintaining, daily driving, and repairing Toyota/Lexus products. Their engineers have OCD when it comes to making quality products right down how everything is spaced apart in the engine bay.
Call your local parts store, ask for a 1UR water pump gasket and ask the service person to describe what it looks like, obviously to make sure it's the right part...
My local parts store wouldn't have a fucking clue what "1UR" means, and I guarantee that would be followed by ," VIN, or year, make and model, please, " also followed by me standing around for 10 minutes to find out that *no way in hell, do they have a w/p gasket in stock for this*
As an old diesel mechanic & from what ive seen over the years i would guess at the last service before failure it may have had the wrong oil put in it. Way to clean internally to not have had regular services. Obviously the failure started with the mian bearings as the bigends are fed oil from the mains.
Incredible engine. These run forever with proper maintenance. So many high quality parts in it. This engine was oil starved based on what I see in this video
I hope Toyota Engineers are taking notes of this video; and maybe contacting your office, if my 2014 LS Sport with 39k miles blows up I'll be pissed. Great video.
These failure rates are rare, besides we don’t know what really happened to this engine. Could be to owner abuse, or someone forgot to put oil in it, or something else went totally wrong
I've replaced only a few of those 1U's before and it was from a wrecked car scenario. They are pretty stout engines and like you said usually have pretty high mileage. That crank snout was wild. Lol. Digging 'Mr Larsons' shirt from Happy Gilmore. Awesome!!! 🤣👍
Seeing this a few other engines being torn down makes me even more aware of how simpler electric motors will be to get that same 385 hp. And this comes from a guy who majored in ICEs in college while getting a mech engrg degree and who did research on engines on dynos as my first job out of college. This Toyota engine exemplifies the complexity which will amaze automotive historians in the future.
As an owner of a 2GRFE I can attest that this person did not keep an eye on the oil level. Toyotas are not oil burners, but the manual does say that when the engine is raced, it will consume oil. It makes sense given how a lot of performance engines consume oil when driven hard. We all know the 2GRFE sits in a lot of Toyota’s and Lexus’s lineups, and can handle up to 800hp-1300hp on stocks internals, depending on how you tune them. 2GRFE is the one I’m referring too but there are other 2GR variants but this one is the most easiest to tune.
I’d suggest your “educated guess” lacks evidentiary support. An oil starved engine typically has substantial heat signature and coking of oil residue. This engine has neither. Knowing the oil circulation system may provide better diagnostic evidence of failure. I’d personally be looking at pump and pressure relief valve as well as oil filter. For some reason #3 big end spun, commonly this is pressure related. Once that happened the entire system was compromised w/bearing debris. Determining the reason for that failure is the key
@@MichaelM-to4sg if the oiling port was partially blocked due to bearing movement - perhaps the wrong bearing size was used during assembly - oil starvation and a spun bearing condition could occur. Once the bearing let go, metal clogs the oil pick-up resulting in oiling issues to the main and other rod bearings. The scary part is this comment got 22 likes, yet no other part of the engine shows signs of oil starvation.
@@Ericsaidful This was presumably not a new engine. Incorrect bearing shell size, the engine doesn’t make it more than 10 hours under load. Spun big end is nearly always pressure related. It would take a lot more analysis of oiling system, beginning from its origin, the pump and pressure relief through galleys and feed system to crank to identify the starvation issue. I highly doubt it was lack of oil in sump nor lack of servicing.
@@MichaelM-to4sg The engine looks like it's definitely got less than 120,000 miles on it, at least. No varnish, nothing is worn aside from the bearings, not one spec of sludge, discoloration, nothing. There is a working theory that Ram 3.0 has had a batch of assembly issues because they have had issues with spun bearings on the mains as well. I'm not an engineer or a mechanic. But if there was an oil starvation issue I believe you would see evidence where oil reaches last, the cams and cylinder head. However, there was not one blemish in either cylinder head or on any bearings and moving parts. Thus, I'd make an assertion that the bearing shifted blocking the oil port, resulting in oil starvation to that one cap until the bearing went.
@@Ericsaidful I am retired AE/ME. Involved more in development of gas turbine hot sections so no direct experience in piston engine engineering. I’ve built more than my share of race motorcycle engines. I also owned a BMW M5 w/E60 V10. During my 8 months of ownership the engine seized twice, the 2nd time threw rod through case & BMW volunteered to lemon law the car. I was not alone w/this experience. That engine was known for incorrect main bearing shell clearance. The first failure occurred at 4900 miles, the 2nd was less than 600 miles after rebuild. If the shells were too tight, they would spin extraordinarily fast. Too loose, they’d be noisy from outset and would fail long before 100k miles, likely less than 25000 miles. Lexus I believe requires full synthetic POA oil, our RX450H did. I also owned an LX570, using a version of this very motor but it was over a decade ago thus I do not recall if it too required synthetic oil. If this engine has used synthetic oil, changed regularly, there is very little sludge or discolouration evidenced in a 120k mile engine. The vapor point on synthetics is too high for coking and sludge deposits. The cam lobes did show some varnishing. I’d like to see piston skirts and cylinder bores to better indicate wear, but w/o service history a lot is guess work. Regular servicing w/ synthetic base oils look like this at 150k+ miles, assuming good ring sealing to mitigate oil contamination.
My guess is the failure is from a momentary lack of lube event, perhaps from being run dry during a service interval (Jiffy-Lube or something), then oil added after the mistake was caught when the engine started rattling. The engine would have stopped rattling when oil was added, but bearings would have still been damaged. The then damaged bearings then later fully failed with lube (perhaps hundreds of miles later) since there's little discoloration.
From the results of the autopsy, I would conclude that someone got fired for not putting oil back in it after an oil change. That engine did not look like it had many miles on it either. No oil causing the block to get super hot, warping the cooling system on top of the block in the valley enough to let loose the coolant. No coolant, hot engine with no oil, metal expands at different rates, and the bearings spun and destroyed itself in the one cylinder and managed to stay in on the crank. I'm impressed there wasn't more damage to be honest. When an engine spins a bearing like that, it's usually pure chaos of broken rods and blocks. Toyota really knows how to build them well.
For this to happen on this engine, which is the stuff of legends designed by men in Japan in an ivory tower, I'm sure it had to be run at least 100k miles with no oil in a sandstorm with no air filter. I'm sure 1000 people will say roughly the equivalent to this in the comments section.
The best entertainment on the web! Nice editing. On the Toyota V8 I noticed that that some of the cam-cap bolts also retained the cam plate. Slick! I wonder if the oil filter housing was loosened to make the engine easier to pull, then dummied back on. You deserve a new car whenever you want it, serviced by the dealer with new parts.
Looks like an engine with solid engineering and build quality. Also looks like it was well maintained until a catastrophic event. Likely run without oil.
I ran many years ago an old LC 3.9 Diesel on 5 of 6 cylinders back home. The trip distance on 5 cylinders = 1600KM, pulling 2.5 tons. I have huge respect for LCs.
It probably had a leak in the filter housing gasket and lost oil pressure. It holds over 9 qts of oil so it would have to lose a lot to start showing damage like that. I'm still proud to have this engine in my car.
Really learn a lot from these tear downs! I’d love for you to do a BMW M54 engine if that’s at all in your wheelhouse! You have a great channel and look forward to more 928 videos! Thanks for all of the content!
My Lexus IS350 broke some Valve springs, on its first engine. (I still have it) . I bought a Used Engine from JDM Place of Houston, & 1,000 Miles later the Engine seized. Oil was still clean & topped off, the coolant was clean & full. No oil leaked or poured out anywhere when the Engine shut off on the Highway.
Doing an engine swap right now on this engine. Make sure you know about that heat exchanger leaks and know that due to major heat the DI injectors will break trying to unplug them. cannot use reuse the seals so.....
That engine must have been knocking for a long time... surprising someone let it go that long to get that bad... :-( Those spun bearings suggest sub standard oil to me....an engine like that needs the best oil...the cheap stuff just won't do...
Shirt makes me think of UHF. Love it! I look forward to your teardowns every week. Any chance you can upload at 4k? Looks a tad meh on a 4k tv playing on a ps5. Keep them coming, love the humor you inject and way you film. It is satisfying and relaxing to watch.
@@I_Do_Cars I really appreciate the response, big fan! Maybe it is on my end. My ps5 hits other yt videos at 4k when the content is available, but for some reason it only goes 1080p for your vids and the options do not allow me to choose 4k sadly. It does not matter much to me at all as your teardowns are always enjoyable and i like the style. They are relaxing and satisfyingly technical. I have a 2017 mustang gt and loved your recent 5.0 teardown. Please keep your current format as is going. Fan from Rochester NY.
@@I_Do_Cars you should do a Kia/Hyundai 2.0t Theta II engine. They fail at random and now there is a lifetime warranty on the engine if maintained. Kia/Hyundai say there was debris leftover during the machining process. I just cant believe that they didn't fix that issue from 11-19. I feel like there has to be a design flaw. I mean 8 years and some people are on 3rd and 4th engines. Please.
0w16 actually. I believe their reasoning was that the thinner oil wastes less energy through pumping losses as it warms up, and cars in Japan have been using it for a while I guess. There are some talks of taking it down to 0w8, the next lowest oil viscosity.
If you read the owner’s manual carefully it gives you different conditions i.e short trips you have to change the oil at 6500km (4000 miles) etc and in different areas like Middle East it says you may use up to 5w30 oil for the new dynamic force engines 2.0l and 2.5l 4 cylinder
@@artemovsk1 Lighter oil will lead to more oil consumption people will really need to watch that dipstick at 10k intervals. Personally I even question 0w-20 one on my cars goes down to 19-20 PSI at idle and at 200 degrees oil temp but 85psi at full throttle. I personally would rather give up the 1/8 mpg for more oil pressure at low rpm.
0-20 currently, moving to 0-16 and we've had 10k intervals since 2010. I've seen plenty of our cars 5-10k miles over and they're just fine still, odds are someone didn't fill it properly. the only time we see these engines getting work done is the coolant valley plate leaking and this block had plenty of coolant in it from what I could see.
look at the chain tensioner/guide, part of the oiling is dependant on the tensioners/guides working. When they fail oil splashes all over the place and causes the journals/bearing to have a lack of oil.
Most engines are running, until they aren't. I'd imagine the rod bearings went, plugged the oil pick-up, wore the main bearings and then they let go. Testament to Toyota that their bearings spun? Looks low mileage. Even the best maintained engines end up with varnish so I'd assume this was relatively low mileage for spun bearings.
@@I_Do_Cars yes ! Haha probably won’t ever happen 😂 they are tanks. My question do you only do blown Up engines with problems or do you actually buy good ones to take apart
Andrew very rarely do we split a good engine. There are some engines that the head or pan is worth more than the entire engine, so there are a few exceptions.
I've got that 3.4 VVT-i in my 05 Sienna Limited factory spec. never thought I'd fall in love with a minivan. That motor with 240hp has a lot to do with it💜
A high-level cleaning detergent was being ran in that motor (kerosene, diesel, engine flush) there is zero color on the aluminum way to clean.... Took out all the bearings.
I replaced one of those for a customer in January. I did the oil change 6 weeks earlier, still full. Spun a main and threw the rod getting off the highway. 140K miles. It happens.
@@justsumguy2u could be something like extreme off-road angles, jumping the vehicle etc. Small loss of oil pressure which damaged bearings a little at a time. Eventually the clearance was that high that during a long drive the hammer action took the rod bearing all the way out
I have one of these in an LS460 and I feel much better about the design of the engine having seen it taken apart in this video. I change my own oil and put a NO OIL tag on the steering wheel before I drain it so running it with no oil ever happens. This engine takes over 9 quarts of oil, so maybe the quick lube place put in 5 and called it done. If I ever need parts for mine, I'll visit your site. Thanks for the video.
@@Shawn-ky2tw mine is a USA version 2016 and it takes 9.2 quarts with filter. I just checked it with 2500 miles since the oil change and it’s still full. Thank you for the reply!
@@godzilla7148 not if it happens in a short amount of time, maybe it was ran with 1-2 qts for 20-30 mins, when its run without any oil, and begins to scorch with heat, it tends sieze
Those numbers etched into the block are the relative bore sizes for the main bearings, the crank should also have the sizes for the mains and rod journals. Bearing thicknesses are chosen using both of the numbers, block minus journal gives bearing thickness.
I'm a mech, these engines are bulletproof as are their larger cousins. From the few issues I've seen with these Toyota V8s it tends to be oil related. Either oil was not changed at regular intervals or it was run very low on oil. Even the toughest of Toyota products willl suffer failure without lubrication. I would rate these V8 motors as some of the finest ever built.
What's the timing chain interval on these engines
@@yuvi018 there is no timing chain interval. The chains will last the entire life of the engine. You only replace timing belts, this engine does not have that
@@Oliver2020. thanks man!
Instructions from the gods themselves ☄️
i have replaced many timming chains they do wear sometimes at a faster rate than belts l1 master car and truck@@Oliver2020.
These engine autopsy's are so interesting. Thanks for taking your time to educate us. I'm an old GM and Ford guy so the insides of a Lexus engine is something I've never seen.
And what insides have you seen from Ford or Chevy?
@@glennnichols4220 his first love
That engine gives the impression of many hours spent on design by many talented engineers.
I am not a Toyota fanboy, but I must admit that is a very elegant modern v-8 engine design.
Hence the spun bearings?
@@michaellehto1697 A spun bearing is usually a maintenance issue such as low oil level or no oil not a design issue.
@@robc8468 so that goes for all manufacturers, right? Does'nt mean that Toyota is bulletproof. Think of all the issues they have with oil consumption past 15000 miles or so.
@@michaellehto1697 I do agree this would apply to any manufacturer. I personally have never owned a Toyota, nor I am a Toyota fanboy as stated in my original post. I own 3 Mopars Two Pentistar 3.6 L V-6 and one 5.7 Hemi.
For the novice who views your efforts, this is a great way to begin understanding engines in so many ways. Well done in presenting your concept!
Yep, I'm actually learning the terminology.
Gorgeous. I like how they still make lots of cast metal parts that will live longer than I will if they get basic maintenance. No throw away valve covers, etc. It makes sense that the resale on a 15 year old IS is five times a 15 year old Audi where all these parts are plastic ready to crumble when you touch them.
Dude. I know this is an older video of yours. I watch your content all the time. and now since I have a 2007 LS460, this video is helping me. Great work as always brother.
Leaving the damages aside, the engine design and the construction is absolutely amazing.
Normal engine design from this millenium.
Ps. Are you yank?
Pretty standard design and construction. Almost nothing remarkable about this engine.
@@CadexLaw if it has overhead camshafts and no 4bbl carb, its amazing
They probably did 100k miles without an oil change!
@@geoffbell166 Did you bother to watch the video?? That engine was ultra clean inside.
Really enjoyed seeing a Toyota product taken apart. Big Toyota fan - would love to see a 4.7 torn down.
Just the same engine
@@Shane-zx4ps it’s not, the 4.7 has a timing belt and some don’t have vvt
@@Shane-zx4ps Nope...very different engine- it's a UZ engine, specifically the 2UZ-FE which was produced both with and without VVT-i and has a cast-iron block.
@@Shane-zx4ps the 4.6l (1ur) and the 5.7l (3ur) are the two that are essentially the same.
@@BeanDip125 also they moved the starter
Thank you for the opportunity to see the insides of this engine. Although it suffered a catastrophic failure, it is definitely an extremely well designed engine.
If a world renowned Super Reliable engine blows up, it's either Oil, or Timing.
Toyota isn't the end-all be-all of reliability anymore. Even they are slipping, succumbing to the recurring revenue stream generated by cars designed to last about as long as the warranty/payment plan.
Nobody makes a good car anymore.
@@TestECull this motor is from 10+ years ago and is to date one of the most reliable V8s ever (at least mechanically). Also, Lexus is still top dog in terms of reliability even today, especially with their V8s.
@@TestECull Not true. Toyota had some issues in the mid-2000s, but they actually fixed the problems that turned up.
Or some kids always romping on it. I blew my moms Toyota when I was a teen always redlining it lol
@@dakdewolf ah..no...lincolns of the early 1930's were known to be rock solid reliable and go over 300k without being touched
😢😭Check the oil filter housing cap, it should have a metal tube with holes in it, stops the oil filter from collapsing and causing oil starvation to oil
pump and subsequent engine failure.
This tube comes out at times with filter and if not noticed and put back in will ensure, not today but soon your engine will seize.
Ask me how i know😓
Excellent teardown job with pinpoint accuracy in your narration. I own a 2007 LS460 and was amazed at the compactness of the V8 engine, but your video makes me sleep better now because it is obviously a very well engineered masterpiece of ICE. Looking forward to your future videos, and please do a teardown of an EV system soon. Thank you!
Another advantage of using the “cam plate” is you can optimize that part for its bearing properties, and the head proper for, say, retaining valve seats and other things.
As a old tech forensic teardowns where my favorite jobs. A tip for someone doing a home teardown never use power tools to break bolts. Part of the process is checking for loose bolts.
Done a few tear downs with power tools, I usually use a weaker one impact to remove fasteners. The weaker it is the more you’ll tell bolts are loose or not and it makes the job quicker!
I like your thinking though!! I work flat rate as a tech so tearing engines down isn’t really what I get to do but if I do I gotta do it quick and the weak impact will help identify loose fasteners as well
@@tx4runner459very good tip - what do you consider a weak impact for my reference? Might try this on my next project (whenever it gets started- who knows) a 1/4 dewalt ratchet or something similar is what I am thinking
Have a 3800 Buick engine in my Aussie Holden. After 20 years of use apart from oil and filters ,plugs it has never been touched.
Plain and very simple, an excellent motor
The 3.8 has a tremendous reputation for fuel efficiency too. And as a good marine engine.
The 3.8 engine may be the best engine GM has made. Rock solid
good old 3.8 buick. damn good engine.
I have a 94 Pontiac Trans Am I bought new. It has 338.000 miles on it . The 350 LT1 ENGINE has never been touched. Even the timing chain is original. Runs like new. Sounds perfectly healthy. 3000 mile oil changes, Castrol GTX. Uses no oil, has never failed California emissions test. THIS IS A RELIABLE ENGINE! 😁
The 3800 was a spin off of the Buick 215/300. Just like the Rover V8.
Specific oils for most engines these days, making oil changes very critical. Trusting your expensive vehicle to the "cheapest oil change in town" joint might be the worst mistake you'll ever make. Dealers are also capable of screwing up.
Just do it yourself. Taking anything to any mechanic these days is a big gamble. I've found most dealerships to be more incompetent than those cheap oil places. Had a Toyota dealership tell me my fuel injection system was throwing codes and it would cost me 2500.00 to replace it.. car came from the factory with a carburetor.
@@rustbeltrobclassic2512This is so true. I have personally seen cars severely under and overfilled with oil at dealerships.
People have the misconception that dealerships are the best places for their car care. But often, with mundane but important tasks like oil changes, they don't have their a-level technicians doing that stuff, but usually some idiot highschool dropout.
I discovered your channel yesterday, watched a bunch of videos then searched for any Toyota engine... Nothing - Until now! Good timing!
Always double check your oil if you get it changed somewhere.
Always always always!!!!
Lots of beginners at these quick lubes or dealerships!
My son took my Subaru to the dealership for a recall and I had the oil changed by them at the same time. When he returned I checked the oil, it was a full quart short. Nothing catched the dipstick.
The shop that changes my oil , you stay in the car. You can watch them pour the new oil in. Before you leave they bring the dipstick to you, and show you its at the full mark. Thats how all places should do it!!
@@johnfranklin5277 Except most new european cars don't have dipsticks anymore...
Very good advice.
That engine is incredibly clean!
How did he loose the bearings?
No oil
He changed the filters but forgot about the oil. LOL
@@tomekjablonski7789 how does that happen?
Totalled my LS460 in late 2020.
Seeing this engine almost makes me want another.
Its a stout piece.
6 bolt mains in since 1990.
Only Chevy with their(Lotus) ZR1 engine was doing that back then.
Chevy weren't doing it. Mercury Marine, who built the ZR1 engine for Lotus/Chevy were the ones who put the 6-bolt mains in.
@gchampi2 yeah.
My bad.
A buddy of mine who managed a boat shop for a while,recently chatted about it.He asked if I knew who built it,and I did answer him correctly.
Every video of yours I watch, I learn more about engines. One thing that I learn over and over... if your engine gets oil starved it isn't going to last long.
Glad to see a Toyota motor teardown. Got a request for a future video: a Jeep 4.0 inline 6. I know it's probably not a big money making engine but I would love to see that engine torn down.
We love it when you do different companies types of engines
Shittiest profile pic I've ever seen.
Thought Ponny ones were bad.
"we"
Yes, I would like to see a Kia/Hyundai 2.0t Theta II. These are the ones now with lifetime warranties as long as u maintain them. They had a class action suit. Kia/Hyundai say they didnt clean all the excess debris out after machining. I dont believe that. First its 8 years worth of cars, and 2nd some people are on 3rd and 4th engines. I would like to see if u could see a design flaw during disassembly.
@@StrongFreeLovin the channel owner faved the communism pfp comment -_-
@@imabebebebe2496 channel didn't age well lol
Ji**y Lube "no oil" oil change. The internals were far too clean to assume lack of maintenance, and the engineering looks rock solid.
Nice shirt BTW.
what i am thinking, min wage oil change place. drained oil and forgot to fill. prob had some manager up their ass about "time" and or low information type worker.
@@Dratchev241 It's not just the quick places. I have a 2018 V8 Mustang. The 18s went to 10 quarts while the 17s and back used 8. The Ford service manager misunderstood me when I said I'd do it myself and it got changed. I get home and check it and sure enough it's 2 quarts low. I take my F150 in and look at my service writeup and it says 10W30 for the change when it calls for 5W20. I call them up to verify and he says just bring it in and we'll change it again. I get home, check the level and its at the add line. Needless to say I'll being doing my own oil changes from here on out using full synthetic. The F150 is easy, the Mustang will require a little more work to get it jacked up but still not bad.
@@scottyV1000 sounds like a ford problem
Which just pi**es me off. Ruined a perfectly good, clean, good shape engine because they did the oil change wrong. It's a major reason why I change it myself. I know 1) it's done 2) right 3) with the amount and brand of oil I need/want.
If that were my car I'd probably sue with a vengeance.
The reason why I started doing my own mechanic work can't trust anyone
Same thing happened to a ls460 I just did a motor swap on. Pan had plastic guide pieces and babbit. Job was a nightmare, a lot of difficult to access hardware and connectors because of the engine size. The rear O2 connectors are inside the cabin under the carpet. The catalytic converters are part of the manifolds. Starter requires the removal of the passenger side manifold to replace. It's a subframe out job, engine and trans. Really the only way to work on it.
Dude I've been binging your videos since I found you. Like a dream channel to me.
I'm really good at taking things apart to look at what's inside when I was a kid, just ask my dad, took apart his very expensive Denon receiver to see how it worked, he was soo proud I destroyed his receiver he got a special locking shelf so I couldnt do it again!
That looks like a situation where a Quickie Lube place drained the old oil out...but never put new oil in. Owner probably drove it that way for about ten miles until the engine destroyed itself.
I wouldn't put it past a dealership to do something this stupid either. More likely maybe.
Dealerships usually have at least one good technician, but they're usually never the ones doing oil changes.
I love watching these before i go to sleep there so relaxing
great video, doing research on GX460 and this video taught me that in this gen/engine they dispensed with timing belts and went to chains so the truck I'm looking at doesn't need as exensive maintenance as the 470's at it's mileage interval. thanks!
I admire your skillset and knowledge a lot. I've been binge watching your tear down videos and they are the best I've found on TH-cam. I grew up in a family that worked on engines a lot, but I never got into it because I was too young to do the work myself, and was convinced I needed to go to college instead of working with my hands. Your channel has reignited my love for engines, and I love watching your videos and learning from what you're doing. You have the perfect balance of information and process, and teaching about what you look for to see whats wrong with an engine. Love it. Keep it up!
Ill bet that oil filter housing got hit and all the oil came out while the owner was still driving the car. That is the only explanation that makes sense to me, with a such a clean engine and spun bearings.
i think you are right
only if the owner kept driving after the oil light came on for a significant distance.
@@davidjacobs8558 why would oil light come on?
@@ReubenHorner if the oil filter got hit, and you lose all oil, then the oil pressure sensor will be activated and you will see oil pressure warning light on the dash.
@@davidjacobs8558 I have at least three people in my immediate family who, if an oil light came on, would just shrug their shoulders and happily keep driving because "they gotta get to where they are going". That's if they notice the light at all. I call them car killers.
My Sunday morning ritual. Love the channel!
for this engine to be that clean, somebody forgot to put oil after the oil change and drove off..
But you would have to be a complete bloody fool to carry on driving it as the oil light would be on constantly, must have beenna
@@samrodian919 bloody fool of a driver would be the only logical explanation i could think of.
I have a GS 460 I’m so glad you posted this
Great videos and please keep them coming. Fascinating to see the engineering in these engines.
I used to work for a UK truck manufacturer and we occasionally got engines come in for warranty claims looking like this with new filters and lovely clean oil in them. Usually had been run way over the oil change mileage, or low on oil, started to rattle and only then had the oil and filters done. Then the owner appears at our dealership all innocent and puzzled as to why his engine failed and can we replace it under warranty please!!
Thank you for showing this ! I rarely see the dismantling of an engine I have in a vehicle, I have a 2007 Lexus LS 460 L with this engine currently with just under 90k miles and I am so impressed with seeing the build quality of this engine, it matches the build quality of the entire car and you can see why so many are still on the road with very few repairs ever needed, so unlike most other car makes.
The LS 460 is a amazing engine, I've seen some at the auction 300k-400k miles still running and driving.
Mine has 223k miles and runs amazing and the engine has 0 blow by.
Hooray it’s tear down day! Thanks
I have a 2007 LS460 with 277k miles now which I got at 67k miles. Just pulled a 5.5 second 0-60 verified by Dragy app. 8 speed shifts like butter and is original. Call me a Toyota fan boy, but I've owned vehicles from every car manufacturer in the last 25 years, nothing beats maintaining, daily driving, and repairing Toyota/Lexus products. Their engineers have OCD when it comes to making quality products right down how everything is spaced apart in the engine bay.
The rod bearing was just taking a vacation to the oil pan it wanted to get out and see more things
Call your local parts store, ask for a 1UR water pump gasket and ask the service person to describe what it looks like, obviously to make sure it's the right part...
🤣🤣🤣🤣
My local parts store wouldn't have a fucking clue what "1UR" means, and I guarantee that would be followed by ," VIN, or year, make and model, please, " also followed by me standing around for 10 minutes to find out that *no way in hell, do they have a w/p gasket in stock for this*
As an old diesel mechanic & from what ive seen over the years i would guess at the last service before failure it may have had the wrong oil put in it. Way to clean internally to not have had regular services. Obviously the failure started with the mian bearings as the bigends are fed oil from the mains.
Incredible engine. These run forever with proper maintenance. So many high quality parts in it. This engine was oil starved based on what I see in this video
I hope Toyota Engineers are taking notes of this video; and maybe contacting your office, if my 2014 LS Sport with 39k miles blows up I'll be pissed. Great video.
These failure rates are rare, besides we don’t know what really happened to this engine. Could be to owner abuse, or someone forgot to put oil in it, or something else went totally wrong
Another great video! How strange that such a clean engine suffered such a cataclysmic failure.
Oil starvation the one time, despite being well maintained at all other times.
I've replaced only a few of those 1U's before and it was from a wrecked car scenario. They are pretty stout engines and like you said usually have pretty high mileage. That crank snout was wild. Lol. Digging 'Mr Larsons' shirt from Happy Gilmore. Awesome!!! 🤣👍
That shirt rules. Making Shooter McGavin look like Miles Davis since 1996!
You eat shit for breakfast??? NO!!!!
lol that shirt rules lol
I have a GS460 so this is great insight to my project I haven’t seen before! Thank you for the video and the tear down!
At 19:00, "...whole species of pieces!" Most aptly phrased! Keep up the great work...and entertaining narrative! Best wishes.
Seeing this a few other engines being torn down makes me even more aware of how simpler electric motors will be to get that same 385 hp. And this comes from a guy who majored in ICEs in college while getting a mech engrg degree and who did research on engines on dynos as my first job out of college. This Toyota engine exemplifies the complexity which will amaze automotive historians in the future.
Happy Gilmore accomplished that feat no more than an hour ago.
And good for him you moroooooh my god!
As Mr Larson bends the 9 iron with his hands, with a nail in his head 😂
Oh you can count.. and YOU can count on ME waiting for you in the parking lot.
LOL well done.
I believe that jacket belongs to Mr Gilmore!
Engines of little demand, but produced in large quantities indicate good reliability
A beautifully made engine, one of the best I've ever seen.
I own one. It’s the smoothest V8 I’ve ever driven.
@@jpete3027666same I floor it everyday in the highway it’s a gs460
As an owner of a 2GRFE I can attest that this person did not keep an eye on the oil level. Toyotas are not oil burners, but the manual does say that when the engine is raced, it will consume oil. It makes sense given how a lot of performance engines consume oil when driven hard. We all know the 2GRFE sits in a lot of Toyota’s and Lexus’s lineups, and can handle up to 800hp-1300hp on stocks internals, depending on how you tune them.
2GRFE is the one I’m referring too but there are other 2GR variants but this one is the most easiest to tune.
3:30 actually, it's both port and direct injected.
Hey buddy, great tear down on that engine, what an incredible design! Too bad it broke, looked in real good shape.
My educated guess is that engine was oil starved. Ran low on oil or a short period with no oil.
I’d suggest your “educated guess” lacks evidentiary support. An oil starved engine typically has substantial heat signature and coking of oil residue. This engine has neither. Knowing the oil circulation system may provide better diagnostic evidence of failure. I’d personally be looking at pump and pressure relief valve as well as oil filter.
For some reason #3 big end spun, commonly this is pressure related. Once that happened the entire system was compromised w/bearing debris. Determining the reason for that failure is the key
@@MichaelM-to4sg if the oiling port was partially blocked due to bearing movement - perhaps the wrong bearing size was used during assembly - oil starvation and a spun bearing condition could occur. Once the bearing let go, metal clogs the oil pick-up resulting in oiling issues to the main and other rod bearings.
The scary part is this comment got 22 likes, yet no other part of the engine shows signs of oil starvation.
@@Ericsaidful This was presumably not a new engine. Incorrect bearing shell size, the engine doesn’t make it more than 10 hours under load.
Spun big end is nearly always pressure related. It would take a lot more analysis of oiling system, beginning from its origin, the pump and pressure relief through galleys and feed system to crank to identify the starvation issue. I highly doubt it was lack of oil in sump nor lack of servicing.
@@MichaelM-to4sg The engine looks like it's definitely got less than 120,000 miles on it, at least. No varnish, nothing is worn aside from the bearings, not one spec of sludge, discoloration, nothing.
There is a working theory that Ram 3.0 has had a batch of assembly issues because they have had issues with spun bearings on the mains as well.
I'm not an engineer or a mechanic. But if there was an oil starvation issue I believe you would see evidence where oil reaches last, the cams and cylinder head. However, there was not one blemish in either cylinder head or on any bearings and moving parts.
Thus, I'd make an assertion that the bearing shifted blocking the oil port, resulting in oil starvation to that one cap until the bearing went.
@@Ericsaidful I am retired AE/ME. Involved more in development of gas turbine hot sections so no direct experience in piston engine engineering. I’ve built more than my share of race motorcycle engines. I also owned a BMW M5 w/E60 V10. During my 8 months of ownership the engine seized twice, the 2nd time threw rod through case & BMW volunteered to lemon law the car. I was not alone w/this experience. That engine was known for incorrect main bearing shell clearance. The first failure occurred at 4900 miles, the 2nd was less than 600 miles after rebuild. If the shells were too tight, they would spin extraordinarily fast. Too loose, they’d be noisy from outset and would fail long before 100k miles, likely less than 25000 miles.
Lexus I believe requires full synthetic POA oil, our RX450H did. I also owned an LX570, using a version of this very motor but it was over a decade ago thus I do not recall if it too required synthetic oil. If this engine has used synthetic oil, changed regularly, there is very little sludge or discolouration evidenced in a 120k mile engine. The vapor point on synthetics is too high for coking and sludge deposits. The cam lobes did show some varnishing. I’d like to see piston skirts and cylinder bores to better indicate wear, but w/o service history a lot is guess work. Regular servicing w/ synthetic base oils look like this at 150k+ miles, assuming good ring sealing to mitigate oil contamination.
My guess is the failure is from a momentary lack of lube event, perhaps from being run dry during a service interval (Jiffy-Lube or something), then oil added after the mistake was caught when the engine started rattling. The engine would have stopped rattling when oil was added, but bearings would have still been damaged. The then damaged bearings then later fully failed with lube (perhaps hundreds of miles later) since there's little discoloration.
Wow! So it has Direct Injection AND port fuel injection to solve intake valve carbon buildup problems. That's a Cool!
Toyota’s one of few manufacturers that’s actually spending the cash to do that these days
Insane amount of complexity in that thing for it to be so famously reliable. Also, sweet Star Wars blaster you got there lol.
Amazing! Adam Sandler is branching out into auto engines!
From the results of the autopsy, I would conclude that someone got fired for not putting oil back in it after an oil change. That engine did not look like it had many miles on it either. No oil causing the block to get super hot, warping the cooling system on top of the block in the valley enough to let loose the coolant. No coolant, hot engine with no oil, metal expands at different rates, and the bearings spun and destroyed itself in the one cylinder and managed to stay in on the crank. I'm impressed there wasn't more damage to be honest. When an engine spins a bearing like that, it's usually pure chaos of broken rods and blocks. Toyota really knows how to build them well.
For this to happen on this engine, which is the stuff of legends designed by men in Japan in an ivory tower, I'm sure it had to be run at least 100k miles with no oil in a sandstorm with no air filter. I'm sure 1000 people will say roughly the equivalent to this in the comments section.
The best entertainment on the web! Nice editing. On the Toyota V8 I noticed that that some of the cam-cap bolts also retained the cam plate. Slick! I wonder if the oil filter housing was loosened to make the engine easier to pull, then dummied back on.
You deserve a new car whenever you want it, serviced by the dealer with new parts.
Looks like an engine with solid engineering and build quality. Also looks like it was well maintained until a catastrophic event. Likely run without oil.
run without oil? did the oil just evaporate on its own? i mean they're not known to leak so where did it go?
@@ChuddleBuggy ???? It's called burning oil and the owner not checking?? rofl
@@ChuddleBuggy"not known to......." doesn't mean s**t.
I ran many years ago an old LC 3.9 Diesel on 5 of 6 cylinders back home. The trip distance on 5 cylinders = 1600KM, pulling 2.5 tons. I have huge respect for LCs.
Those are some crazy tight head bolts.
Man you’re telling me... I think they’re the tightest head bolts I’ve encountered
It probably had a leak in the filter housing gasket and lost oil pressure. It holds over 9 qts of oil so it would have to lose a lot to start showing damage like that. I'm still proud to have this engine in my car.
Really learn a lot from these tear downs! I’d love for you to do a BMW M54 engine if that’s at all in your wheelhouse! You have a great channel and look forward to more 928 videos! Thanks for all of the content!
My Lexus IS350 broke some Valve springs, on its first engine. (I still have it) . I bought a Used Engine from JDM Place of Houston, & 1,000 Miles later the Engine seized. Oil was still clean & topped off, the coolant was clean & full. No oil leaked or poured out anywhere when the Engine shut off on the Highway.
Finally a Toyota ! Like the shirt too !
Doing an engine swap right now on this engine. Make sure you know about that heat exchanger leaks and know that due to major heat the DI injectors will break trying to unplug them. cannot use reuse the seals so.....
That engine must have been knocking for a long time... surprising someone let it go that long to get that bad... :-(
Those spun bearings suggest sub standard oil to me....an engine like that needs the best oil...the cheap stuff just won't do...
I only use Toyota genuine motor oil in my LS460
Shirt makes me think of UHF. Love it! I look forward to your teardowns every week. Any chance you can upload at 4k? Looks a tad meh on a 4k tv playing on a ps5. Keep them coming, love the humor you inject and way you film. It is satisfying and relaxing to watch.
I film in 4K and upload in HD. I don’t know how to improve it from here.
@@I_Do_Cars I really appreciate the response, big fan! Maybe it is on my end. My ps5 hits other yt videos at 4k when the content is available, but for some reason it only goes 1080p for your vids and the options do not allow me to choose 4k sadly. It does not matter much to me at all as your teardowns are always enjoyable and i like the style. They are relaxing and satisfyingly technical. I have a 2017 mustang gt and loved your recent 5.0 teardown. Please keep your current format as is going. Fan from Rochester NY.
@@I_Do_Cars you should do a Kia/Hyundai 2.0t Theta II engine. They fail at random and now there is a lifetime warranty on the engine if maintained. Kia/Hyundai say there was debris leftover during the machining process. I just cant believe that they didn't fix that issue from 11-19. I feel like there has to be a design flaw. I mean 8 years and some people are on 3rd and 4th engines. Please.
Love the shirt 💙
With Richard Kiel wearing it is pretty intimidating. Adam Sandler movies have some memorable characters
Dude.what's up with that shirt i thought your job is to troubleshoot the engine. not to tell people how afraid you are
@@jmorris4374 Someone fell in the sarchasm. It took me a minute to pick up on it, but worth a laugh when the clue bat hit.
Saw the shirt and said "that's the one Richard Kiel wore in Happy Gilmore". I believe the characters name was Mr.. Larson.
Always wanted that shirt.
Love the shirt as well. These videos are so soothing and therapeutic. Thank you!
I talked to the owner. He said he changed the oil and used a Fram oil filter and his engine immediately self-destructed. True story.
always use those toyota filters. If you look at some of the youtube videos of the most replacement brands they are junk in comparisons
@@dannyphillips6446 Agree. I would never use aftermarket for anything. I enjoy knowing a car is 'original'.
You did a great job and explanation of the teardown on the Lexus 460 thank you
I heard toyota is going with 0w15 oil and 10,000 mile intervals. You might start seeing more of them 🤔
0w16 actually. I believe their reasoning was that the thinner oil wastes less energy through pumping losses as it warms up, and cars in Japan have been using it for a while I guess. There are some talks of taking it down to 0w8, the next lowest oil viscosity.
My 2017 corolla takes 0w20 full synthetic and it came with lifetime oil changes at 10k miles with a lifetime engine guarantee. 🤷♂️
If you read the owner’s manual carefully it gives you different conditions i.e short trips you have to change the oil at 6500km (4000 miles) etc and in different areas like Middle East it says you may use up to 5w30 oil for the new dynamic force engines 2.0l and 2.5l 4 cylinder
@@artemovsk1 Lighter oil will lead to more oil consumption people will really need to watch that dipstick at 10k intervals. Personally I even question 0w-20 one on my cars goes down to 19-20 PSI at idle and at 200 degrees oil temp but 85psi at full throttle. I personally would rather give up the 1/8 mpg for more oil pressure at low rpm.
0-20 currently, moving to 0-16 and we've had 10k intervals since 2010. I've seen plenty of our cars 5-10k miles over and they're just fine still, odds are someone didn't fill it properly. the only time we see these engines getting work done is the coolant valley plate leaking and this block had plenty of coolant in it from what I could see.
I enjoy watching your engine teardown videos...keep' em coming!
Absolutely love your shirt!
I enjoy seeing your tear downs and WE need to see more Common Sense shirts like you were wearing in this video.
We are men of culture 👍🏼
My man that shirt is amazing. Respect went wayyy up 👍
look at the chain tensioner/guide, part of the oiling is dependant on the tensioners/guides working. When they fail oil splashes all over the place and causes the journals/bearing to have a lack of oil.
A testament to Toyota, this engine was probably running when it was pulled out of the Landcruiser or whatever it was in. LOL
Most engines are running, until they aren't. I'd imagine the rod bearings went, plugged the oil pick-up, wore the main bearings and then they let go.
Testament to Toyota that their bearings spun? Looks low mileage. Even the best maintained engines end up with varnish so I'd assume this was relatively low mileage for spun bearings.
@@Ericsaidful exactly. Stephen green probably works for toyota. Payed troll to keep up their image
Pretty sure Yamaha makes this motor not Toyota anyway sooo
@@johnaranjo2059 no.
Yamaha specializes in cylinder heads for sporty applications when it comes to Toyota.
@@kevincampbell1395 right because the worlds largest automaker needs some youtube commenter to defend them.
The complexity of a modern V8 is just astounding. Very interesting.
Yes worlds different than my grandpa’s 350 Chevy 😂
Please do more toyota engines like the legendary 3.4s that’s my favorite engine I have 402 k miles never been inside it
I need to find a blown up one first!
I do have the bad 1fz from my land cruiser, it will be a video at some point
@@I_Do_Cars yes ! Haha probably won’t ever happen 😂 they are tanks. My question do you only do blown Up engines with problems or do you actually buy good ones to take apart
Andrew very rarely do we split a good engine. There are some engines that the head or pan is worth more than the entire engine, so there are a few exceptions.
@@ImportedRCF That would take away the fun. Why look at a good engine?
I've got that 3.4 VVT-i in my 05 Sienna Limited factory spec. never thought I'd fall in love with a minivan. That motor with 240hp has a lot to do with it💜
2xs sped up impact sounds like stormtrooper blasters 😊
LOL! I thought the same!
A high-level cleaning detergent was being ran in that motor (kerosene, diesel, engine flush) there is zero color on the aluminum way to clean.... Took out all the bearings.
AWESOME shirt, man!
That's 2 so far, Shooter.
And you can count, on me waiting for you in the parking lot.
I have this engine and it’s unbelievable great mine has 247,000 miles on it still runs great.
They ran it out of oil, that's the only way you spin a main bearing
I replaced one of those for a customer in January. I did the oil change 6 weeks earlier, still full. Spun a main and threw the rod getting off the highway. 140K miles. It happens.
@@ohger1 Nope, no it doesn't. There's no logical reason for something like that to happen, it's always cause and effect
@@justsumguy2u could be something like extreme off-road angles, jumping the vehicle etc. Small loss of oil pressure which damaged bearings a little at a time. Eventually the clearance was that high that during a long drive the hammer action took the rod bearing all the way out
As always a great video. Still hoping for a 3.6 Pentastar tear down.
The shirt is legendary I love it
I have one of these in an LS460 and I feel much better about the design of the engine having seen it taken apart in this video. I change my own oil and put a NO OIL tag on the steering wheel before I drain it so running it with no oil ever happens. This engine takes over 9 quarts of oil, so maybe the quick lube place put in 5 and called it done. If I ever need parts for mine, I'll visit your site. Thanks for the video.
Good strategies. I thought this engine was 8.2qt with filter?
@@Shawn-ky2tw mine is a USA version 2016 and it takes 9.2 quarts with filter. I just checked it with 2500 miles since the oil change and it’s still full. Thank you for the reply!
Even with the guide missing this engine has every sign of being ran with no oil.
No oil creates heat. There's no evidence's of heat, no scorching or discoloration.
@@godzilla7148 not if it happens in a short amount of time, maybe it was ran with 1-2 qts for 20-30 mins, when its run without any oil, and begins to scorch with heat, it tends sieze
Love it when you say " I haven't done this before ". Because I haven't either. Let's take look.
Adam Sandler's son is doing teardowns😂
Bro i came to the comments to see if someone also saw its his long lost twin🤣🤣
Those numbers etched into the block are the relative bore sizes for the main bearings, the crank should also have the sizes for the mains and rod journals. Bearing thicknesses are chosen using both of the numbers, block minus journal gives bearing thickness.
Love the shirt!