Is Our 383 STROKER Crankshaft JUNK?!
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- เผยแพร่เมื่อ 30 ก.ย. 2024
- We have good news and bad news...
The good news is that we have our cylinder block machining complete and even checked our cylinder surface finish with a profilometer! That bad news is we got ahead of ourselves on our crankshaft...
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• Building A 383 Stroker...
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I am always amazed by the knowledge that the cleaning guy has! You are truly blessed to have him as a mentor and father! Both of you are humble and always strive to make things as perfect as humanly possible. Your customers know this and are willing to pay whatever you charge whilst knowing that they are getting the best product possible!
I cannot imagine how many people are knocking on your door to have work done! Another stellar video!
The cleaning guy made a good catch. You need to keep him around the shop more. Maybe even give him the keys to the door and let him answer the business phone...I think he can handle it by now...😊
There is a Silver lining to this. Now that the crankshaft is balanced. When you throw it in the garbage it will fly straight. We also get a couple more Videos about the 383. This series is a favorite of mine. It's good to show the Ups and Downs it keeps your channel real. Keep up the good work.
Definitely not going in the garbage. They can regrind the journals to be finished properly and sell it in the future.
That was a Joke, Earth Humor. Lets see how many people get that reference. If you do say so in a reply but do NOT say where it's from to keep people guessing.
Hello Guys, I am from Brazil and despite my work is not related to car engines, I love your videos and your tireless search for perfection.
You guys are a source of inspiration to those who really cares about quality.
Well said.
Me also. Dude
Hey buddy. Not sure if you notice yourself, it sure took me a while to notice on my own arms but i see when you hold something in your left hand it starts shaking. I have the same thing from boring mountainbolts under water for so many years giving me nervedamage, not saying you have that but i would have it checked out. Just a friendly advice, we're all getting older and we gotta look out for eachother.
He's acknowledged his tremor in the past. Most definitely aware of it.
It's called getting old. Just like we all do.
Alot of guys got em, I'd say he just need to keep his hands clean from fluids. Trans guy I'd seen had bad shakes, doc said wear gloves the fluid is soaking up into your hands.
Yeah from years of oil and being a grease monkey. Unfortunately it can be passed down. Every transmission guy I know had tremors. ATF is nasty shit. Wear gloves people!
He has tremors
Since I started using an SJ-210 about six or seven years ago, I found it to be an indispensible part of my honing operation. I've learned that cylinders and sleeves from different sources can require tweaks in the finishing operations. What I always assumed to be right, as in "this is how we always did it," turned out to be pretty close, but not 100% by any means. If you have any finishing issues, the guys at Total Seal Piston Rings are very helpful.
I built a 383 LT1 or had it built. sent the block, eagle rotating assembly (rods, crank, cam, chain, pistons, rings, arp studs, and bearings) to have done what you guys are doing. The assembly was supposed to have been balanced and blue printed from Eagle, but I asked the shop to verify.. well, long story short, they said it was good to go, I got the short block back fully assembled, timing chain, oil pan, front cover, I put the heads on, and intake + acc., I didn't even get break in time, less than 500 miles, and the crank broke. Had another shop to tear down to find out why, and they said the crank was tapered too much and had a step on the journal. So yea I lost a high end build for this same thing.. got so aggravated I converted the entire car to an LS.. loved the sound of the 383, but LS is still running 10yrs later!
Every Scat crank that ever crossed my bench was messed up in some way. It got to the point we just stopped buying them. This was years ago, I was told they got it together in recent years. Apparently not, lol.
The shop I used for years would not touch Scat or Eagle products. He would flat out tell you to take that crap somewhere else😂. He built NHRA world record holding engines and could afford to turn away work.
@mikemaccracken3112 the Eagles were much less problematic than Scat, still cheap cranks, but better.
If only we could all afford to use Bryant. Hear Winberg is good too but no personal experience.
Callies can be a "low dollar" alternative.
On those same "low dollar builds" you can use Scat rods. Used to go through boxes of them checking bend and twist. Set the ones out of spec aside until there was a full set and return them. Match up rods by weight to have some decent ones to start with. Rinse and repeat.
@@88SC Lunati,Callie’s,Manley,Ross,CP,Carillo,JE,Diamond,Wiseco etc. No off shore parts.
@@mikemaccracken3112 I wonder if "Offshore" parts would be a problem if it wasn't a place like red China. Would you be afraid of using an OEM Subaru crank?
Good call. The crank is already balanced to your parts. You have the equipment and skills to get it right. It shouldn’t take much, if any, to rebalance.
i was QA at a valve co that made food grade 3A stainless steel valves we used a much older profelometer to see how well the electropolishing and chromium was being deposited along with refracted lasers with certain polarities in the color to see fine flaws in the polish as any imperfections could harbor bacteria and materials which could make cleaning difficult real pain in the tail getting into smaller than 3/8 ID valve assemblies to do readings on surface finish
a "profilometer"? I didn't even know that was a word 😂 awesome stuff! Can't wait for my 413 to be shown here!!!
I have seen Eagle crankshafts with same issue. Thankfully it was caught before it was balanced. I would definitely turn it.
Never assume a part is in spec just because it's new, especially an off-shore crank from Scat. They're known for cheap prices, not precision machining.
Eagle is usually worse
Hard to get out of the box quality anymore. Hardly anyone cares. It’s all about how much $ can be made in the shortest amount of time.
New & Improved = easier and cheaper to manufacturer!
Just curious, a) are these parts serialized and b) what did the vendor have to say about your findings?
Most these cranks are Chinese junk. SCAT seems to be finished better but I’ve seen some straight junk from Eagle. There are some good cranks but they are gonna cost you more than $400
Goes to show you that the Chineseium stuff is not up to snuff these days.
I’m sure the casing from china was likely fine. Remember Scat cranks are ground and machined in their California facility. So unfortunately a United States workforce screwed this one likely.
I'm not an engine guy, but I am an engineer and I can't believe clevite will only promise .001 out of round! Thats absurd in my book. You weren't even trying to check concentricity between journals. I'm honestly not sure how they could could possibly grind a crank that far out of round aside from silly high of tool pressures. Guess trying to push parts out the door. Making something round is one of the most basic operations you can do in grinding (getting the size perfect is much harder than getting it round right?). With a little patience I've set 30 meter linear rails to +/- .001 and the machine runs compensation on top of that to account for concrete foundation deflection.
Love the channel/content. Makes me wish I’d have gotten into machining. Also makes me want to send you my engine components. Respect the work ethic you both possess. Keep it up guys 👍🏼
Callie’s forged 383 crank would be wonderful here but it’s over 1100 bux.
You are so lucky to have your dad work with you, make the most of it mate! Love your videos, you guys are just so wholesome it's incredible!
Great video. Why would you not send the crank back, and get a real new one? The company messed this up, not you. I realize you would have to re-balance the new one, although a 10/10 crank will work too. Either way, great contact, and you two are really funny, I love watching the high quality , thank you, Jim
As a long times machinist, you can't go wrong with Mitutoyo measuring equipment except for Interapid indicators and the Starrett non-rotating blade depth mics. Unfortunately most Starrett and Brown & Sharp stuff is complete garbage now. Earlier in my carrier I had to return 11 pairs of 0-12 inch Brown & Sharp dial calipers. A bunch of guys wanted them for their personal boxes because of a promo. Some would measure good in the first few inches then be off by .003 over 10 inches. Others were too tight throughout the spectrum or had various other issues. Mitutoyo is the way to go.
As a machinist as well, almost all Mitutoyo stuff is top tier. I agree on the indicators, the interapids are nice due to the dual direction. I do love my brown and sharp best best 1/2 thou indicator as well. Starrett is mostly riding on their name only any more.
@@nwngunner A while back I bought a new Starrett non-rotating blade mic set. When it came in the barrel wasn't spinning freely and I struggled to remove the barrel. Once I removed the barrel, a bunch of fine chips and oil came out. It looked like someone had sabotaged it after inspection. Even their own employees don't like them.
I would have returned rhis to the manufacturer or third party you purchased from. Thats just crazy. It appears somrone messed it up, some newbe and to save face, "oh defect from part, well just swap it out" you guys are true professionals in this industry. Thank you for the insane detail you go into. This shows your knowlege and your willingness to grow andearn more as other shops give you pointers. You guys rock. I will have to see how much it is to ship my next build to you to do a full machine on my LS2. There are shops here local in Phoenix, that ive done business with for 20 years. But i want to see you guys do my build and i will know for sure its going to be solid. Also love to have a series made from it to have documentation on its full machine process
They won't take it back since it was balanced. They will say that you messed it up. Just goes to show that new ain't always good.
@@hotpuppy1 Most places you can get them to take it back or exchange, but if they are able to repair it and get it back within spec, then I would demand a steep money back for dealing with it. If they purchased it from a company that they do business with on a regular basis, I'm sure they would have no problem returning, or exchanging. Now if they are a new customer and this is the first order, then alot of companies will go "wait a second here" and scrutinize it more... but either way, they learned a leaason, always mic the lobbs, even when new.
Scat cranks are made in china What did you expect quality? I won’t buy scat junk anymore I’ve learned my lesson. I now your guy has a budget but good luck with the build
Well Scat is a slang term for s, h, i, t.
Scat cranks are actually finished in California. The cast cranks are cast in China, some are forged in China. I have only seen a Scat like this that was tampered with. I have gotten numerous cranks over the years that came directly from Scat, and all were spot on.
Great job guys, can't wait to see what you do with the crank.
I was just wondering if you can order an oversized crank and then plan to do all the final machining yourself. That way you don't have to rely on someone else to get the size, roundness, taper, offset, etc. all correct.
If I talk to someone who says "It measured perfect"....my internal respect monitor goes way down because to a precision minded person there is NO such thing as 'perfect'. It was great to hear this from the 'crank grinding guy'. :)
Everything has dimensional variances and if your equipment doesn't show them...then you just aren't measuring things close enough. Once you start slipping past 'as close as we can get it' to 'it's within tolerance' then the tendency to use the tolerances to speed up production rather than to give you room to correct problems rears its' ugly head. Good machine work being demonstrated here!!
the thing is, even temperatures inside the shop can change the size of any metal device used for measuring.
When Mfg. don't count on you having precision measuring tools.
Great job guys, you’re both always willing to teach, and share your knowledge. I always enjoy learning from your experiences.
Isn't this a VERY well know manufacturer (That I will not name) crank??? Because if it is, I can tell you that this WOULD NOT BE the first time in RECENT months that we have seen this type of issue with there parts. Another Well know You Tube channel RECENTLY had a issue with a crank from the said company that I will not name. And it cost him a LOT when the crank failed under a low rpm failure.
WOW ... are you guys trying to go to the Moon? Sorry but you guys are trying to get to "perfect" and think it's a bit of over kill. Just grind the crank and go mid. And on the honing, "RMS 60" isn't going to give you much "extra" ... appreciate your pursuit of perfection but WOW !!!
This is what i keep seeing. Cant trust any parts. From a bolt to a crankshaft!!
So you can now change your video title's to "A blueprinted 383".
I dont rebuild engines or transmissions on the daily. I have and have a trusted machine shop do the machine work when done. And it always gets inspected by me and not just installed assuming it was done right. And thats why i "trust" the machine shop i go with. I have yet to find mistakes.
But here is an example of crap parts. I put 7 alternators in 1 car last year. Every one failed. Either 5 minutes in to a week in. It sucked. And i did 5 cv axles in 1 car!! All caused a wobble.
I'd LOVE to get an engine built by the cleaning guy. I'm 68. I'm not a big one on burnout contest, (which, to me, is a gratuitous waste of resources). I could go to my, (hopefully! 😁 ), eternal reward knowing that my 10 year old grandson would be driving a vehicle with a engine that, with good maintenance, would last a half a million miles. Craftsmanship like this is as rare as hen's teeth these days. I wish you weren't a half continent away from me. 😞
At 3:56 the block is moving while you are honing. Is that right? Isn't it locked in a fixture? Couldn't that result in bore taper?
Curious, why you couldn't just polish each journal, and hand fit .001 and .0005 under bearing shell halves to get clearance exactly where you want it
Please don’t delve too quickly into the computer, chip world and fancy machines. Digital crap is being pushed on us at a fantastic rate and it’s not all it’s cracked up to be.
Stick with your dad’s knowledge and experience to learn more.
Have you watched any of the videos from @TotalSeal Piston Rings on cylinder honing?
Have been hearing horror stories about scat stuff, especially since covid and them being bought out by an investment group.
In the absence of an explicit roundness requirement for a circular feature on an engineering drawing, the feature of size tolerance implicitly controls roundness. If the feature of size tolerance allows more roundness variation than can be tolerated, a roundness control should be specified.
I am a retired machinist/supervisor of over 40 years. While I never worked in automotive, I did work oilfield and very large compressors. When we did a crank, much larger than you are working with, (several thousand pound cranks) we also put special indicators between the counter balances to see how much the crank was flexing which causes runout. We then put adjustable bearing blocks at the journals and dilwedd the flex out of the crank to keep the crank from flexing while spinning before we started a grind.
My guess is that the previous person that ground that crank spun it too fast and it flexed while grinding causing the runout not to mention what he/she did to put a step in that journal. Also we never ran three jaw chucks because just tightening them up can flex/bend a piece of work. You can check that claim out yourself with an indicator. We ran face plates and bolted the cranks to them to keep the stress off of the cranks or precision shafts we made. You mentioned nothing can be perfect. Well, I assure you that when we were done we had zero runout on our cranks and shafts. If the time is taken and done properly you can get zero runout at least on your indicator.
I'm not a machinist in any way, shape or form but I find this content highly entertaining. It definitely feeds the dopamine fiend in me. Thank you!
I’m with ya. Not a machinist but really appreciate fine craftsmanship.
Chinese crankshaft?
It would be cool to see Lake speed JR come in & talk about getting the best finish without 500k equipment
Great video, You guys just work together so well. I love your dad and his "Im sure I can handle it" Attitude. I would bet he doesn't get to excited about a things when they go sideways. As long as the "hired help" learned from there mistake.
Eagle and Scat usually are off out of the box from people I know that used them. I have always used resurfaced OEM cranks for my limited engine builds, but that's what I've been told by several people that do use them.
Yes scat especially
When I built my 383 in 1989 they didn't sell cheap cranks, I had to make my own from a 400. I did it on a 465 Van Norman crank grinder
These guys could probably finish 1 engine per decade
Did you contact the supplier of the crank and if so what did they tell you ?
It is becoming more and more difficult to find quality work, and to find quality parts like America used to make. The crankshaft says it all. Goodbye America.😢
I find it humorous that the best cars in my family were made in the USA. They came from the Marysville Ohio Honda assembly line.
You guys need a engine dyno. What spec for surface finish did the ring manufacturer recommend?
It goes to show you that one needs to still check new parts. I’ve heard people complain about scat cranks, but it’s seems like all parts are touch and go in 2023.
What a bummer, sad that you cant trust the Mfg to do QC before shipping! I sort of had a bad feeling about crank when the HUGE balance hole was needed on the counterbalance...
This is the crank that y'all had so much trouble balancing last week? Contact the seller, send it back as a bad part. The fact that you had to go extreme to balance it, and now bearing surfaces are not within spec? Even if its brand new manufacture and you are the first to touch it? Escapes from manufacturers do happen. It could be an instance where the automated measuring systems failed because of an undisclosed internal flaw of either an inclusion buried in the shaft or a machine was off calibration that day. Hardly matters, you got a bum crankshaft.
What a difference between how you do things and how we did things out in the garage and backyard back in the '60s and '70s... Can't help wondering how random new stock cranks from each decade from the 1950s to the present would check out...
This shop’s practices and procedures mimic those of quality shops in the 60’s and 70’s. Stock performance engine forged cranks from GM, Ford and Mopar were spot on.
I used to love operating the honing machine.. your stroke speed looks much faster than I remember..
It would be interesting to see what the balance on the second crankshaft is without the weight on the flywheel, Is it already internally balanced? I noticed on the balancing video that the drilling was always in the same area as the weight on the flywheel. Made me wonder if the crank was already balanced from the factory.
The amount removed looked about the same as the weight volume
@@ab2230 Agreed! I think it would cool just for grins and giggles!
How easy would it have been to just throw that crank in and send it out? Too easy.
As he states more than likely would never see an issue, but if there was it would be just as easy to blame it on the owner as operation abuse.
Not settling for just ok work is what will separate the OK Shops from the GREAT Shops and this is why the serious person will seek out the Great Shop when needing peace of mind machine work that they can and will trust.
If I was several hundred miles closer they would have all my work, fortunately I do a shop that provides the same caliber of work only 50 miles away, but let me say if my shop were to close I would definitely look into shipping my work to Jim's Automotive in Colorado.
Honesty is WORTH a Lot of Money.
Hey guys, could that out-of-spec section of the crank be spray welded and reground, as Adam does on his Abom79 channel? Great videos, I love watching them.
Why?
heat would most certainly ruin the crank. especially with the tolerance these two are chasing.
I believe in the cleaning guy let the magic flow awesome video as always stay safe my friends
Per usual this was another great breakfast and coffee enjoyed watching the cleaning guys son take the cleaning guy to the cleaning closet and school him accordingly. 😂🤙🇺🇸🇷🇺🧂
As I was watching the video I noticed that it looks like the block is moving side to side @ 3:56. Does this block move normally with the Honing stroke? Just curious. Thanks so much for the great info in your videos as machining is truly an art.
I give you guys credit for taking on other's poor work. Maybe in the initial production, maybe some shop thinking they were capable of perfecting something that they were not capable of doing and returning it on the sly, or from a supplier who accepts returns without verifying condition.
I worked in a factory for over 38 years grinding to tight close tolerances and I was just tired of fixing other problems caused by other people. Certified junk fixer. Glad to see you don't use their instruments. Keep up your high standards, people deserve quality.
Id like to see yall do a everything zeroed fully diminishing returns build just to satisfy my ocd
Really enjoying coming back and watching your videos, there is something incredibly wholesome and honest about them that makes them so great to watch. Looking forward to the next installment!
We've all been there... Assumption is the mother of all...
The out of round 3 tenths wouldn't bother me as much as the taper. One shop I worked at had a crank grinder that ground a full. 001" out of round. I refused to use it. Guy that worked there told me every guy that worked in that shop since the machine was new in 1962 complained about it. We had Jamison Equipment work on it 2 times, including rebuilding head and tailstock and scraping the table and the gibs and ways. Never changed a thing. One day the late Jim Gessford came in after he sold his shop and started selling equipment for Jamison and I was telling him how disappointed I was in that grinder and all the money we dumped into it only to have it grind out of round. He says it sounds like it's lined up perfectly and that's not correct it needs to have a slight misalignment just like toe-in on a car front end. He told me how to check it and what to do and with 4 little pieces of .0015 shim stock that machine would freeze the needle on the Arnold Guage!!!! I was amazed, that was 1989 and I'm forever grateful to Jim Gessford, he was a self taught genius of a machinist and equipment rebuilding. My biggest regret was not going to work for him when he offered me a position once. I would have learned a lot more and probably still been doing machine work.
Yeah I read and learned old ways about shimming and comes from the pre-war days rebuilding by hand I been doing this stuff since 68 but too too precise equals stress and redo because of over precision and being too picky the engine will still run
@@brantardrey7360 I was referring to shimming on the crankshaft grinder to get it inline so it would grind perfectly round. Not shimming the engine, that went away when insert bearings came out in the early 50s. Way before my time.
Nice job again guys, that is a perfect example that it`s better to assume that aftermarket parts are not good to go out of the box and that is when a good machine shop comes to rescue.
I am looking forward to see that crank grinding challenge and more of the SBC vids, thank you!😀
The out of round would not worry me much but that taper is a problem for sure.
I love how you guys strive for perfection in these engines but when it comes to 3 ten thousands of a inch you might be getting a little compulsive if it was a 3000 hp dragster engine id say worry about it but it’s not it’s a 383 stroker sometimes you just have to keep on building but that’s my opinion I do know if I need a engine built I’m coming to you guys lol😂 god bless
Yeah you're right because being over perfectionist cause of a lot of stress and worry for something that doesn't matter because production engines aren't that close even if it's a performance production engine and I've been building since 1968 as a kid and I used to do a lot on home machine work rebuilding and everything and I did a lot of perfection stuff some guys used to say you're a good mechanic but you take too long because I was trying to be a perfectionist
I am not an engineer, nor do I have any experience of engine machining, but I do like watching rebuild videos. I have seen some videos where the very last process in cylinder bore honing involves the use of wire brushes. Apparently, it makes sure no bits of honing stone/media are left in the cross hatching. What are your thoughts on this? Keep up the good work.
J7st cut your loss3s and send it back?
Regards Richard 🇬🇧
Well, normally you could do that but they balanced it. And for balancing you have to drill material out. They drilled the crank and can't send it back now.
I prefer their idea to grind it themselves to their own specs. It will probably be better than new.
Horrific someone doesnt check a possible tampered with item.. Thats why you cant return electrical items . otherwise praying quality assurance at that supplier would be wondering what happened.
Question was it brand-new out-of-the-box little phone call to the manufacturer, what's a what's up guys.
Jim here’s the link..
David Vizard 621hp 383
540 ft lbs
On pump gas - 87 octane
m.th-cam.com/video/f66F64vSP4g/w-d-xo.html&pp=ygUYRGF2aWQgVml6YXJkIDYyMSBobyAzODMg
David also explained what is gravity…
It’s not the earth spinning..
It’s the weight of air…
A typical high school gymnasium has 40 tones of air inside the building..
Thanks for sharing this video. Years ago I was a Mac Tools distributor and serviced this shop and an employee named "Chappy". I remember back then these were the guys to see. They had a great reputation then and I see they still do. These days it's very difficult to find a reputable professional machine shop. Kudos to them for continuing their art and keeping this trade alive. Great job guys!!!
Send it to me please, my momma has a 355 that needs to be a 383. i would go ahead and offset grind it and make the journals smaller with the stroke bigger at 3.8" or 3.85" Heck, may as well go a 3.9" with it.
Great channel. Great content. As an engineer who plays with wrenches more than most engineers, I appreciate the education I get from watching your channel.
same here.
That sucks that you can’t trust a new crank. They give you a different crank but what about the time you have balancing your set up.
It'll turn out nice. Bummer you didn't catch it before hand but it's not a mistake until it leaves the door.
Next one perhaps consider a 2 valve releif piston, less quench. Mahle makes pretty affordable stuff that works well for the street in NA form via their powerpak line.
I realy like that your pointing out flawns on new products it realy makes a guy thing about what parts we buy and not to trust it just because its new . Thanks gor the great vidios
“5” in the hole lol. I know, no one is perfect. I have to cut stuff occasionally that’s still too short even after two cuts lol. It happens.
Love the content. I have some experience with surface roughness measurement using a Mitutoyo SJ-410. The greatest advancement in understanding the condition of a surface for me came with the implementation of a software application called OmniSurf, published by Digital Metrology. You pull the data from the gage directly, and you can perform offline form removal and filtering. It's a game-changer! Keep doing what you are doing. It's fantastic!
I had Jim do some extensive head work on a set of 461's that I put in a hotrodded 400 in about 1988 or 89. Steve from LaSalle Manufab sent me to you. I remember seeing your old shop El Camino around town in Greeley a lot. I moved to Arizona years ago, and I just came across your videos. When I saw your familiar face I was amazed. Good luck with your business! I still have hotrod stuff, but a whole lot more expensive now.
David Vizard goes into the science about flat top pistons for street / strip engines…
Explains the burn rate across the piston using pump gas..
David has a spec build 383 Chevy that 621hp on pump gas - like 580 ft lbs of torque
Just checked my Eagle forged crank. Same story, not quite as bad. seems the rod journals vary from edge to edge. This seems to be the case with all the Chinese made crap. They're just slinging it out fast with no regard to quality! Shame on these American companies for not doing the quality control! I got fed up with Eagle some years back as their flexplates were absolute junk. So cupped and out of spec. Their answer was " They computer welded everything and it was good". Hadn't bought a rotating assembly for 7 years from them. I guess I'm not buying any cranks from them from now on! Probably not from Scat either!
I practice anesthesia for a living and in comparison this stuff is EASY! Just add the micron flux compacitor to the drill level doppler guage and photonalize the light spectroscopy metal synergy amplifier. Anybody could do this 🤷♂️
I think the fact that you could use your index locks and the crank is that close to perfect in stroke and index is amazing.
Go .010 under, make it lighter. That's more better. For real though, the fact that yall can even grind cranks is amazing. There are 4 or 5 machine shops in just the town i live in and NONE of them can grind cranks. You have the talent and the machine so I believe you should grind it. I for one would watch the video even if it was 2 or three hours long.
So I was watching that whole video thinking why don't just regrind that dodgy New crank than redoing all your machine work, balancing again,,,, and there it was, the challenge,,,,, I thought I'd missed the bit of undersized crank bearings,,,,, enjoy your videos, looking forward to watching the crank fix
I always used to work better at night! I think it came from working during Winston Cup Points meets, on weeks leading up to, and weekend of. 😊😊😊 Lots of midnight oil burning. AND some truly heroic feats of labor (as well as napping on a cot)😅
Great video, but the crank isn't really junk if you can fix it.
The cleaning guys pretty cocky....deservedly so :-), I think I'd give him a bit of a raise or if not that, a new bucket and mop so he hangs around LOL
Thank you for your knowledge and videos USA 🇺🇸 USA 🇺🇸 USA
Have you ever checked a cylinder after removing the torque plate to see just how much it affects final dimensions? How can a a solid torque plate (steel? aluminum?) simulate the distortion a cylinder head, (either cast or aluminum) , with all it's internal passages,voids, cooling jackets, ports, even combustion chambers will have on a cylinder? An inch thick solid steel plate without a head gasket is not going to stress the bore exactly like a cylinder head. Yes "everyone" says they're essential,and it's always been done like that, so there it is.
Searched about your videos to find which brand crank you have?
Surely missed where you said - just bought a 383 crank so like to know...thx
So, who sent you the bad crank? Did they make it good/replace it with a usable crank? We need to know these things: not only who is a supplier we would want to use, but which suppliers we want to avoid. Thanks.
EDIT: Never mind; I just checked another of your vids and found out it was a Scat crank. Did they have a response to this issue?
Piston accumulator grooves are unnecessary if you comprehend gap, and the purpose of each ring position.
The top ring is the only compression ring. The second ring is an oil scraper ring, it scrapes excess oil from the cylinder wall. Hence the conical shape. The third, or oil control ring carries oil to the upper cylinder.
Ring gap is critical. The top ring gap should be as small as possible without presenting the possibility of butting.
Second ring gap can be absolutely wild, and should be. If the second ring does not allow gasses to escape because of a too small gap, the top ring will float or unseat.
I don't even want to watch the revelations re the crankshaft.
I spent many years grinding crankshafts. From the miniscule Briggs, to the large Caterpillar, Cummins, and Komatsu.
I'm curious on what kind of cost are we talking for a 383 stroker? I ask because I have a 2013 Avalanche with a 5.3 that I tow my boat with. I've always wanted more torque.
The challenge is on! 14:42 Definitely a raise 🤑+ pizza🍕 and a new broom 🧹. 🤣👍
You guys are way to confident in QC departments these days................nothing suprises me with new parts now days.
Is perfect being the enemy of good enough? Why not simplu re-true those journals by the few tenths they are out?
Make then all the same size and nice and round even if it's 0.0004 undersized.