8v92TA engine disassembly detroit diesel Wanderlodge bus motorhome
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- เผยแพร่เมื่อ 14 ธ.ค. 2019
- Day 1 of the engine disassembly on the detroit diesel 8v92TA on the Wanderlodge motorhome. Pulling pistons, wet liners, and main bearings. Inframe rebuild has started.
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I worked in heavy duty truck shops for 50 years. Brings back memories...4.53's up to 12v's. Also Cummins, Mack, Cats, Perkins. Still have all the tools to run the racks and all. Diesels are what gave me my lung problems later in life. Great video. I've done a lot of outside work also.. Putting clutches in with 6" of snow on the ground.
I’ve torqued many 8V71 and 8V92 main caps on a bench with a 3/4” drive torque wrench but I’ve never done in on the vehicle like this. It gives me a whole new appreciation of how much guys in the field have to improvise to get the job done.
Scott and his son are 2 smart cookies. They have above average problem solving skills that not many people have.
It has been 45 years since I laid a wrench on a Detroit diesel but I remember it like is was yesterday.
Same here ! i think that 12v71 in a cabover Pete is the reason i can't hear anything today !!
I don't even care for buses but your videos are awesome. Subscribed and binge watching these like Netflix.
I don’t really know anything about old busses but I absolutely love your videos and your passion for keeping these 2 stroke diesels on the road!
Thank you!
Pulling pistons and liners on the EMD engines are so much easier, except for the weight. You pull the entire assembly at once, head, piston, liner and rod all come out as one unit. EMDs have individual cylinder heads. The biggest difference is the entire assembly weighs 1200 lbs. so you need a crane or forklift to pick it up.
The other difference is the cylinders on each side are not offset. They are directly in line with each other and share a common crankshaft bearing.
These Detroit series engines are supposed to be pulled with the liner too - Detroit make a tool that fits into the air intake holes - so you crank the pistons below the air inlet holes - insert the tool - then crank the piston up and it will pull the piston and liner at the same time - when you pull out the liner - piston and rod at the same time all u do to remove the piston is flip it over and pull the piston out the bottom of the liner... these boys are working themselves way too hard.
I used to do lots of work on emd engines - when doing a reseal I used a trick - I would short pack the engine - I'd pull the head in place so I could get to the head gasket then I'd pull the snap ring so I could separate the piston crown from the piston carrier there by leaving the rod and piston carrier in the engine - then pullout the liner so I could replace the lower seals on the liner. My crew would usually reseal a 20 cylinder engine in about 10 days start to finish. 2 journeyman and 2 helpers - we were usually working in enclosures where we would have to carry all the pieces out of the enclosure to clean them up.
Great Bus
Great People
Great video
Thanks much
Looks like a good running engine with all the star injection patterns.
And above all, a powerful V8
Great day. So many friends willing to help. 👍💪
Glad my days of in frame overhaul's over God be with youall,and hope the best ,poor bluebird ✌
I love these old Bluebirds.
I just noticed the 8V92 series is mounted fore and aft. At least in this application. I learn something new every time I watch a Bus Grease Monkey video. And if I miss something I go over to Tyler's channel for the recap.
I finally figured out where “foot pounds” comes from. Pound feet is a torque wrench spec and foot pounds is when you push breaker bar (or breaker bar plus length of pipe) with your foot when it is damned tight.
yes, with the foot you wobble a lot more power, but you can't get out of breath ,,, laughs
I love the camaraderie of all the Grease Monkeys! This was a fun video just watching all you guys working and bantering back and forth and having fun, even when double-clicking the torque wrench which has to reduce its lifetime use by an infinitesimally small number. lol
I was used to driving V8 71 MC7s and 4905s so V6 92s were completely adequate. V8 92s were real athletes!
Did you ever drive a coach with a series 60? Those old two strokers couldn't even come close to the power and torque they produced.
6v92t were ok in the flats out west, though even a modest hill would have you down a gear. 8v92 were great if you could keep them cool.
@@markphilpott8735 Yes, Series 60s were excellent. I was just impressed by how much more power the V8-92 had over the V6. My usual run was Bakersfield to Barstow or Bakersfield to Los Angeles so yes, there were mountains.
@@wnewbury4 Understood. I know there is a lot of nostalgia for those old two strokers, they helped me make a paycheck for many years. But when that series 60 hit the road, the two stroke game was over and for good reason. They were clean, made better power, got better mpg and best of all Detroit gave an outstanding warranty and service on the because of 20+ years of constant issues with the 92 series.
JUST A SUGGESTION i LIKE TO USE THE SMALL BUNGEE CORDS TO HOLD WIRES AND CABLES OUT OF THE WAY, TO MINIMIZE HOW MUCH TIME YOU SPEND MOVING THEM OUT OF THE WAY... IT REALLY MINIMIZES SOME OF THE FRUSTRATIONS AND ANNOYANCES . THANK YOU FOR SHARING AND I SUPER ENJOY YOUR VIDEOS.
Hard work all ways pays off hope the new liners and pistons go back in quicker well done all and the edititors totaling these videos as well
Sounds like a bunch of folks are volunteering to build Scott a new liner puller... 🙏
Love the videos Scott, Kelly and Tyler 👍
I need to get the real Kent Moore puller. The make shift one works but the real one is way better.
Some great teamwork to get it done👍🔧🚌
honored to see u working on this powerful engine
Wow, my back hurts just from watching the strain of pulling the pistons.
Those 12 point main bearing bolts...the guys that insist on breaking them loose with an impact wrench eventually get really good at cutting off the stripped bolt heads with an acetylene torch. Get a long bar and break loose by hand
@@fastinradfordable once you round off that 12 point bolt head, you really have no choice but to torch off the head.
I love these videos. Thanks for sharing.
Geez, when you get a bunch of bus mechanics standing around, it looks like the offensive line of the Dallas Cowboys! 🤣😲
Actually more like my Chicago bears
You guys are about 30 minutes from me!! Next time your in NC I will have to swing by and help. It’s good to see fans come out and pitch in. Looking forward to seeing this one start up and come back to life..
They will be there for about a week then they are packing up and hauling butt back home to Indiana for Christmas so you got time to go meet them.
Brinley Nicholson
Thanks for the reply. Hopefully I can catch them on the return trip In March!!
i came buy and seen you guys buses. i wanted to stop in but didnt want to bother
Been waiting for this one!
On the rings when you pointed out the openings were close together, I think it was because of the way they pistons were taken out.
Scott Today Was very entertaining everybody worked as a team Jimmy in Burnsville North Carolina
Love watching this, I'm going to be doing one soon enough. You definitely want to review the video, it was painful to watch it tapped towards the blower and immediately pulled outwards where it gets stuck again. Had it down by the end though.
The only time the bottom half of the rod bearing on a Detroit is used is on startup not used to run every stroke is a power stroke.
True constant compression strokes
I do love buses. I wish you guys had a concrete slab to work over. Thank goodness for liners, I guess that way you can mix your pistons up into any which cylinder; otherwise I'd mark and match them.
Hey Bus Grease Monkey on of my subs sent me to ur channel. These detroit videos are a gold mine to me. Hard to find guys that know a old Detroit these days. I have the manuals but being able to watch someone do it is so much better. Have some work to do on my 8v92 silvertip in the near future. All the best from Ontario
Actually those upper rod bearings looked pretty good. At least there wasn't any copper showing and no deep scratches.
Yup, they looked fine, staining is very normal, did not see excess wear or foreign material imbedded in them. Interesting to see the the gasket sealer used on the head gasket.
Kevin Oscarson it was grease because the heads came off last year
@@kevinoscarson2941 based on my dealings with 8v92s I would have been much more concerned about #3 & #4 lower main bearings. Those were always the problem children on the crank bearings on the v92s.
I am a bit confused. I worked at a Detroit dealer, we had commercial busses well into the 500,000 mile range before looking at bearings.
@@ko9446 They probably werent 92 series. Bearings were always a weak spot with the 92 series. You'd have to roll new bearings in long before 500k. The series 60 on the other hand would easily go 500,000 or more.
someone get this man a ratchet wrench to use with the liner puller
I think someone already did it was in a video of a subscriber stopping by. I think one of the bus boys videos.
We made a new bigger one today and if needed a 15/16 that i didn’t have in ratcheting
They make a 15/16 Gearwrench......in a 4 piece kit....you can see one in my video on how to change a Woods RM59 Belt the easy way...
ModMotorMayhem thanks for writing that. Every time I watch them pull a liner with that tool I think “Somebody, PLEASE tell them about ratcheting box end wrenches.”
I bought my first set a few years ago and now use them for 95+% of the work I do.
Also tell him about torque multipliers, for those mains.
Big job gentleman taking out of the Pistons the bus engine men power put everything back together new rings awesome video keep up the good friend merry Christmas happy new year 2020
Good job!! Great camera work!!!!!👍👍👍👍👍👍👍
really great video guys and so helpful
That is why I love ratchet wrenches .
Scott you really need a set of ratchet wrenches/spanners for the cylinder removal , it'd save those flying wrench moments 😋
Necessity is the mother of invention !
Got poked an dripped on . Rated . Thanks
Oh, for a big, well heated, well lit garage with a decent pit and or lift ! But i don't envy you people out in the open and cold lying on dirt ( reminds me too much of how i have to do things )
Still love the size of the 92 series piston.
I get a kick outa watching y’all work on these old DD’s. Cut my diesel teeth on em (marine service but still basics are the same. We had a tool that snapped into the ports and after you took the loose the rod bar the engine over and remove to cylinder pack all at once. Sold mine long ago. Tried to find a new one for a buddy doing in Costa Rica couple years ago, with no luck. If you have someone good to do the machine work I can explain the tool enough to be built. Big time saver. Maybe someone out there has 1 they could turn you on to . Just a thought Looks like y’all have fun with it so keep on having fun !
Was this a handmade tool or something you could buy at one time?
EMD's are done that way. With the head off,we just bolts a small metal plate to the bottom of the liner in the crank case then screwed the lifting eyes into the top of the liner and lifted them out as unit.
That is/was the only way we tore those engines down. Of course it's a little more difficult to remove the liner & pistons as an assembly on the 53 & 92 series engines as compared to a 71 because of the bond at the liner orings. Kent Moore used to make that tool, I made my own out of round stock, a lot of guys just used a bolt in the liner port...you just need to know what you're doing and how to do it.
Mark Philpott
Saw plenty of guys use bolts and tear up liner bore Shouldn’t be to hard to replicate the Kenmore style tool only use an external spring instead internal spring these buses look real pita to work on anything to make it easier has got to be worth it
@@jonnycash6909 like I said, you gotta know what you're doing. I've seen guys literally break thru the o-ring grooves and ruin the block. JB weld and other epoxy based "miracle fixes" don't hold up well when exposed to ethylene glycol.
Always double click a torque wrench. Pull slow until it clicks and hold that pressure for a second and repeat. The bolts or nuts are stretching at that point.
Finally got some dry weather here in Central NC . I think it rained every day last week.
Kobalt socket wrench which allows the very long bolt to pass through the center of the socket ratchet tool would make removing the liners infinitely faster.
A & W Root Beer...great assembly lube :)
Well it use to be, they don't make em like they use too!😅... neither does coke cola! Lol...
Scott on any Diesel engine it is Recomendeble use Chromed in the water to avoid and remove the st electricity from the engines, water to avoid peered on the block water areA
What are you talking about
Inframing an 8v92....the memories...god man, just to unstick injectors and adjust racks again....I can SMELL that engine...and it's a good thing...found a discarded airport shuttle with a 6v92...you better come help me unstick it! :o)
The mobile Bus Monkey Emergency Room and staff is very impressive. 260 ft lbs!
Wheww!! It was perfect time to pull those bearings!! I thought you stated previously that an inframe every 100k includes new crank bearings?? Right on the money!!. Nice having "the boy" (sorry Tyler, your just younger) on his back working. Getting up and down is killing me these days!! lol
Just inspect or replace bearings every 100k 92 series. You will be glad you did weak link
@@BusGreaseMonkey Would you say the 8 v71 is a better choice.
Bus Grease Monkey do you ever see a need to replace the cams when you do an inframe like on this one? How many miles will a cam normally last in a Detroit that’s had proper mntc?
Thanks Scott
That and a need for anti cavitation coolants because it's a wet liner engine, right?
Bus Grease Monkey - Call me just a little but crazy but if I go through the trouble to inspect the main bearing on an engine with a 100k on it I will be replacing them with new ones.
Why the rebuild? Everything looked good..
There's a tool that naps into those airports and then you rotate the crank and it pushes the liner up with the piston assembly at the same time it all comes out in one piece
Tyler is Awesome!!!
Nice, and did I spy a Contigo coffee mug on one of the tables? I have had one for about a year and I love it!
interesting video. I can't believe...goes immediately through you head when you first see this. Of course I keep thinking that the heads on these are the bad part as all the heat is always right at the valves which don't cool well. If the cycle was reversed with exhaust at bottom and air cooling valves on intake would work so much better.
You can get these 2 strokes to run backwards.
@@christophermarsh6983 detroit diesels can run right or left hand rotation. Depends on which cam they have. Of course they can also be stacked too. I believe some tanks ran twin v16 detroit diesel 71 series.
But that is not what I meant by running other way.
@@jacilynns6330 No, no tank ever ran 16v 71's Especial twin. What some did was run two 6V71 inlines but that was it. You could never fit a 16V in most tanks let alone twins.
@@gregg4164 huh really I was told that one did. Or it could have been some construction machine. When I was being taught about the detroit engines in school back in 1991 they showed us how they could be stacked so, since it has been years, I could be mistaken about application
@@jacilynns6330 Actually I did mean they can literally run backwards!...ie intake through the exhaust and exhaust out the intake.
Use a threaded rod nut, it's like 4x longer and engages tons more thread.
Good thing you all had some heavy duty manpower on that torque wrench. Would a longer handled torque wrench 🔧 have helped?
OMG SUCH A PISTON IS ENORMOUS
You would like the old Superior direct reversing diesels I worked on. 14 1/2" bore by 20" stroke. Idle, 125 RPM, full speed 350 RPM.
@@newjerseybill3521 haha i would believe thats a big engine
Google EMD it’s a locomotive/ tug boat/generator two stroke engine made by General Motors. Up to 710 cubic inches per cylinders as many as 20 cylinders. Like a giant 53,92 or 149. Most closely resembles a 149
@@mike5162 im used to think my 125 cc moped piston is big HAHAHA NOTHING COPARED TO THAT :D
Nice to see that there's No Drama for your Mama, reference to Orange County Chopper's Big Paul (the Father) and Little Paul (the son.)
I know some are going to yell at me but you can take the pistons and liners out as a unit. Just rotate crank till piston is below intake port, lay a rod across the top of the piston that is just smaller than diameter of liner (weld a washer on one end to keep it from falling through) remove rod cap, rotate crank and push piston and liner out together. Done several that way. Yeah I know I’m late with info but just saying.
That’s out go to technique. Tyler was hanging on a 6’ bar and they didn’t budge. Didn’t want to damage the cam pulley with any more force than that. Puller was required instead
Bus Grease Monkey yeah I get that. I used gear and rotated the flywheel you get lots of leverage from the flywheel.
Looks like leg day on the bus rebuild.
Use the piston to push the liner out at the same time after taking the rod cap off with the piston below the ports and sticking a brass fitting or some soft metal between piston and ports and barr the engine over to TDC on that hole.
We tied that. I was hanging on a 6’ bar bouncing.
They can be sometimes hard to come out but if you put a breaker bar and socket on the crankshaft or the camshaft you bounce it back-and-forth hard and it will bang out
always interesting how you disassemble an engine .. can you find out what was defecked?
Hey can we adapt that 3/4" impact down to 1/4" drive?
I've got some dash work to do!
I bet that was fun a V8 wow
Have you ever measured the inside of the liners to see how much wear there was or if there usable yet ?
Have you thought about using a ratcheting wrench before when removing the liners
would it not be better to sand down the top of the cylinder so that upper ridge is smooth The piston might come out easier.
Or like many people have stated you pull out the piston and liner as one assembly
Those are some big arse pistons and rods. wow.
bigassfordsd 92 cu. in. Each.
Google EMD. This is nothing. And there are much bigger engines than an EMD
mike bayes EMD are the biggest Detroits. EmD is still a GM owned company,
vector6977 no it is not
vector6977 caterpillar owns EMD.
Do you need to do anything to the crank when the bearings are worn like that or is ok to just replace them
I really appreciate your videos. Not a ton of info on the old D Diesels. Any idea where 8v92ti books can be found? I'm looking for info on my intercooler and not having luck.
Obtain a fine series threaded rod.
That would have to be the heaviest light coating of grease on the block I've ever seen!
Wondering why we get so many more miles out of our semi-truck diesels than your bus diesels??? I had a 6V92 Fuel Squeezer in my 1979 GMC Brigadier that ran close to 800,000 miles without any repair except for a new turbo. Regular maintenance with an additional LubriFiner oil filtration system mounted on the frame. Just curious.
They seldom die a natural death in a bus, they usually get murdered.
2:42 - _A 'litter' of pistons!_ lol 33:04 - Imagine if Joshua hadn't been editing - _oh boy!_ 34:10 - Tyler's in the _shart_ zone! 36:34 - double-clicked the torque wrench, _let the flames begin!_ lol
Great show, guys! I look forward to more! Cheers-
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Is the 92 series a better or worse engine than the 71 series? What should u be careful of on the 92 and what are the warning signs to watch for?
Would a gear wrench work easier when pulling liners.?
Nice
Scott I have to go to bed ,let me know when you are going to install the lines,
So just wondering what is your opinion of these 8v 92. Are they good bad ugly. Do they consume antifreeze? Thanks
Are you putting new cams in it as Well. And blower gaskets and doing the valve seats.
It’s not Necessary to replace the camshafts unless they were damaged. I’ve never replaced a cam in a two stroke Detroit unless it was a total overhaul with the engine out. A gear train failure or damage due to another failure such as a lifter are the exception.
Are you going to remove the Root blower and Replace the seals that is other area where oil is coming from
That 8V92 is a monster, ain’t it?! I know the big 12V’s are big ass engines but the 8V’s ain’t nothing to laugh at, especially that 92. I love them though, all the Detroit’s, every size!! Course everybody has their favorite Diesel engine, favorite brand or whatever, I like them all really, no matter what the make, some are just better than others ( I guess)! I like the Diesel engine(s) mainly because of the torque most can put out, or the torque you can make them put out! Anyways, good good job fellas, on everything y’all do!!
Get a 5 ft piece of 3 inch galvanized pipe makes heavy torqueing situations that what I do for cylinders and such
Can you weld some legs on the bottom of that top piece of the liner extractor so you won't keep dropping sockets on Tyler's head? Lol. That would definitely be a hell of a job for one person!
Thats not a bad idea.
My thought was why not use acme threaded rod, would the job be easier with that?
Wile E.Coyote approves of the use of all ACME products in his line of work....
Anybody else notice that Tyler is the one that gets the job of crawling around underneath the engine on the cold, hard ground?
He didn’t even complain one time
Tyler is awesome. A remarkable young man.
He’s the youngster. Get your ass under that bus kid
I think you take out all the swearing, things like - golly gosh, well I never and who'd have thought it'. OOPS! forgot one 'XXXXXXX XXXX'. As always well worth watching. Thanks.
What's all that crap on top of the piston at the 7:40 mark? It almost looks like dirt. Carbon? Why do some of the piston tops have the star pattern from the injectors and some don't?
Rust
wow this engine did not need a rebuilt
If you havent squeezed out a fart, you havent torqued those mains down enough. Torque wrench just verifies what my skidmarked underwear already knows.
If you squeeze out a fart, you know you're close. If you squeeze out a shart you know you're dead on.
How can you say 92s are hard on rod bearings, when you can see the water marks in the bearings. That thing has had more water through it than the Mississippi. All due to lack of maintenance.
what happened to that old grain truck you were working on? did it get finished?
Scott and Tyler did all they needed to do in getting the racks freed and control linkages working again and a tune-up so the owner can start it and shut it down to keep it freed up and running. Other things having to do with the brakes, wheels, tires, and suspension are things the owner will do on their own.
Why is the bearing the weak link? Too small? Not enough surface area? Too soft? Oiling issue?
They used the 71 series bearings in the design of the 92.
A shart would be bad. Well for Tyler anyway.
Tech school for bus owners
did it have low oil pressure or was smoking bad? what prompted the rebuild? liners didn't look plugged
th-cam.com/video/viz698jyr44/w-d-xo.html
ah, that explains it. always scary when an engine is open to the elements, but I guess life gets in the way sometimes.