WILL IT RUN AGAIN? FIXING THE REAL PROBLEM WITH MY 632CI BIG BLOCK CHEVY RACE MOTOR!
ฝัง
- เผยแพร่เมื่อ 18 พ.ค. 2024
- Episode 297 of Mike Finnegan's Garage sees us heading to Mooresville, North Carolina to visit Pete Harrell and Mike Moore. The goal is to further our diagnosis as to why the valves are hitting the pistons of our really expensive 632ci Big Block Chevy race engine. In Episode 282, after a disastrous weekend of racing, we tore the entire engine down in my home garage only to discover some major issues with parts hitting other parts inside the aluminum V8. In this episode we discover why.
Don't forget about my biggest giveaway yet for a vehicle from my personal collection plus other cool prizes.
Head over to www.fsmgarage.com for your chance to enter to win my 1970 Datsun 510! Two runner-up winners will receive a Wirecare Motorsports wiring kit and six runner-up winners, will receive an autographed FSM Flexfit hat. Official rules can be found at www.fsmgarage.com/pages/win-m... and no purchase is necessary to enter. As always, head over to www.wirecare.com for all of your wiring needs.
Good luck and Thanks for watching!
-Finnegan - ยานยนต์และพาหนะ
This fkn Pete guy just laid out a basic big lift valvetrain class in minutes that was more digestible than anyone I've ever heard talk about it.
You don’t know Pete? He’s real good at doin stuff
Dude Pete is the man. He tunes and builds Cletus McFarlands LS builds. In fact Pete’s LS 427 in cletes corvette is the first stick shift vette in the 6’s in the world. Pete is a legendary engine builder and tuner.
@@briandstephmoore4910hahaha indeed he is…😂😂
Thats cause he's real good at doin stuff! lol
Pete also has a SICK sense of humor 😁😁😂🤣
Steve Morris and Pete Harrel are really just good at teaching engine stuff. They are not just saying "This has to be that way" but also talk about the why. This is the first time in years that I actually understood what that ramp rate is and why solid rollers need a certain lash. Mind = blown! 😎🤟
And yes, Pete is really good at doin' stuff. 😁
Yep. Even a lot of pro engine builders don’t really understand how important the ramp rates are to valve control. They just want big lift and big duration so it makes good power.
Steve had that engine a while ago that was having problems so he did his own cam for it. Showed how well he knows his stuff when the “specs” of his cam was more mild, but it made more power and wasn’t abusing the valve train nearly as bad.
Yep, not only what Ramp Rate is, but how it impacts the starting and stopping of the valves motions, and the pushrods inertia. About the only thing not covered was how larger lifter diameter enables steeper ramp angles, which is why Muscle Car era MoPar cams were always wilder 'stock' then modified cams on GM's and Fords, thanks to having a wider lifter.
Pete knows stuff as well as good at doing stuff. There are very few people that could properly diagnose and fix this engine, Pete is one.
Real good at Knowing Stuff
Gotta love a Sunday, I hear Pete is Real good at doing stuff.
I can’t wait.
@@CMSFan2010 Say it like you mean it!
I CANT WAIT!
His Walmart bought jams are 👌 too.
Right off the top of my head, I can think of one more motor that needs to have the cam doctor treatment, And a little trip to see Pete wouldn't hurt either!
Pete is the man that’s why cleetus uses him for tuning and building engines now
One of the most madly informative eps yet. It was obvious Cam Man (aka Mike Jones) had trouble throttling his insane amount of knowledge and experience into human terms for us plebs to understand. The witch doctor practicing a bit of black magic...
Always a great day with Pete leading the class!
Pete is becoming my favorite engine dude on the correct side of the Mississippi river.
When he shows us this cam doctor machine setup my level of respect went thru the roof. What a nice tool to have access to. This kind of episode is right up my alley, love watching people who really know what they are doing show us what they are doing. Pete really is "good at doing stuff"!
Or is it "really good at doing stuff"..?
It's both or either LoL!
Mam that Pete guy is real damn good at doin some stuff. He shreds as well
Pete never stops teaching so much. Valve geometry explained in such a consumable way.
Fantastic episode! We take for granted how much good engine guys know. Time to take Rubber Duck to Pete.
It's going to be real interesting to see how this engine runs after the doctors visit. Nice work Pete!
Always enjoy Pete. He explains everything instead of saying, give me a giant pile of 💵💵💵 it's magic.
This is a perfect reason why Pete is an awesome engine builder 💯👍👍
I've always been lost on valvetrain math. It makes so much more sense now.
Pete is the man, knowledgeable without being arrogant…but that Mike miller guy that “rebuilt” the motor previous probably shouldn’t be looking at engines
Pete truly is an Apex Predator.
I think I learned more from this episode of Finnegan's garage then many of them put together. Never thought about the valve lash versus acceleration thing.
I’m to the point in the video where Phil is measuring the physical clearance there’s a lot of people from the last videos comments that owe miller an apology is that engine messed up definitely but for a rush job he didn’t miss measure that engine for piston to valve this is why you show grace not blow up on people it’s ultimately not helpful
At least you found your hp leak and your reliability problems all at once sorry it had to go to the machine shop to figure that out though
Your comment is all over the shop…..I’m so confused…
@@michaelteasdale2919 I just added in my own punctuation but I got there...
I’m to the point in the video where Phil is measuring the physical clearance, and there’s a lot of people from the last videos comments that owe miller an apology. Is that engine messed up? Definitely but for a rush job he didn’t miss measure the engine for piston to valve clearance. This is why you show grace, not blow up on people. It’s ultimately not helpful.
At least you found your hp leak and your reliability problems all at once. Sorry it had to go to the machine shop to figure that out though.
Best cam guy in the world right there.... never had anything from Mike that wasn't fast and reliable... in the world of camshafts and valvetrains you can take his word like the word of god.
Bought a 14° 632. Very narrow tuning window with Nitrous and 14° heads. Melted a few sets figuring it it out. Once it was dialed in, no one could catch us. Won the Championship.
Must be nice to be that rich...🙄
@@JeffKopis Jealous much?
Oh yeah, Bling, Blang,,and Bang!
I could tune it
Great job. Mr. Finnegan and friends!
I can’t understate how much I appreciate your approach to tackling all challenges around fabrication and mechanics.
I’ve been patiently waiting three months for this update. I very rarely comment on videos but when I saw the original video on this engine posted , I had to comment. It’s difficult to comment for fear of being apart of the frustrating armchair experts. Knowledge in mechanics and fabrication is hard earned mostly by setbacks, failures and frustration, but your willingness to persist should be an inspiration to all watching. The comments I left on the last video sit near the top. I can’t know if it helped inspire you to look into the solution but I wouldn’t have posted unless my own failure had taught me the lesson.
I’m so happy this engine is on the road to recovery.
Keep up the great work!
Pete talks...and the collective intelligence of all that can hear him goes up...trick of the week guys run for the hills...thanks.
Pete is a bad dude. I like how he explains stuff in simple terms. He is really good at doing stuff.
I'm surprised with that spring pressure and cam grind that you weren't tuliping valves also. Especially those honking 2.5" intakes. No doubt Pete's the man when it comes to doing stuff on motors.
Yes! I was thinking the same thing!!
Man that was so informative those guys know what's up. I can't even imagine how much time they have spent studying engine physics and real world results to have the expertise those guys have.
Thanks so much for sharing their talents and y'all's adventures!!
It makes a lot more sense now. Pete explained it well.
I know I've said this before but I learn so much from these videos.
I dig this kind of content.
Thanks guys for gear head content.
It's always good to have someone available who is Real good at doing stuff! Great detective work and explanation by Pete!
❤Pete Harrell(?) and certainly thankful that Joe is a regular.
Pete is the man !!!
Mike Jones rockin' a Conch Republic hat. Kind of random. My home!
That’s crazy. I had the same exact issue with my 582. It wasn’t breaking parts…yet (luckily)…so the builder suggested the exact same thing. Grind a better “ramp” and take some violence out of that valve train…and the car is actually slightly quicker!!👍👏🏻👏🏻👏🏻👏🏻
Welcome to cam school from a guy who’s real good at doin’ stuff. Thanks for the lesson …
Maybe I'm just imagining things.... But during the wrap-up, Joe looks EXHAUSTED.
Imagine having to carry Finnegan
@@juicebox853😂😂😂
@@juicebox853absolutely
Looks like Pete is a damn good shot. Apex predator with engines and a pew pews.
Tell ya what, that Pete guy is real good at doin stuff
Pete is my favorite engine savant of all time.
Three guys I wish I could use the services of, are Peter Harold, Steve Morris, and in particular, Mike Jones. All three are genius people. And I build engines for a living. You have two of the three in one video ❤ so much knowledge in one place. This engine will be awesome. Much love from England 🇬🇧
And that is why Pete is real good at doing stuff.
Nice tutorial Pete! Thanks
Pete's awesome. The knowledge he has is fantastic
I used to think that a small block 350 was a lot for a boat, only being around little outboard engines most of my life. But man this is insane! BTW that cam has enough lift for TWO camshafts 🤣
Man. So much knowledge from these guys. Love it.
Great tech info on this one !! Many thanks.
I like the content, especially as I can still watch it in the UK.
I THINK, if you can get Discovery + there, you can watch the motor trend shows as well. If not, just get a vpn
Nice to see an expert's expert at work.
Pete’s the man! Love the duct tape graphics on his channel
Love Pete! Love the details. This is the best part of drag racing figuring out all your tolerances and specs and make everything as tight and efficient as possible. Thanx for sharing!
As someone who has ran a half dozen Mike Jones cams/valvetrain setups....😁
Best episode yet
Hey that guy Pete sure is real good at doin stuff..
Learned ALOT watching this, regarding cam grinds, awesome, ty
i like pete. he's real good at doing stuff
Mike, love the analysis Pete provides.
Get that boat back making noise.
I watched the original video when you dropped the valve (Roadkill moment) and as you tore it down, my thought was cam, rocker ratio or spring issues. Thanks for posting this class on valve train geometry and why it will or will not work. Get the boat in the water, I want to see a full run with no problems, it should haul ass now.
Happy to see you guys sticking with it, finding and fixing the issues, rather than doing the big swap (and potentially encountering more new issues). Great learning here for the audience, and I am looking forward to the successful Sidechick race videos!
MIKIE & JOE, thank you so much for sharing with PETE HARROLD & MIKE JONES the deciphering of the issue with the Big Block valve train you were experiencing. I definitely learned a lot!! THANK YOU!!
I've watched guys slam extreme springs on their heads thinking it was necessary because of the massive lift camshaft they tossed in their engine. Or, they would play around with funky rocker arm ratios to compensate for a ridiculous radical camshaft.
This episode was so very awesome with the knowledge and especially the description of:
What to do, as well as, what not to do. Can't wait to see you drop in that big block and hopefully get to make a pass sometime this year!!
😎🇺🇲🇺🇲🇺🇲
Always enjoy a deeper understanding/explanation of unique circumstances that aren't really explained in depth. With individuals; like Pete, who understand, can explain the situation and pass on the knowledge.
That was some amazing engineering to see. I sometimes thought about how the CAM works in a IC engine, and this whole session filled in the blanks so well. Great, just great!!
Pete Harrell..........The Man, The Myth, The Legend 😎
Love Pete! Thanks for the class.
Been a fan since roadkill first came out. Started up my love for everything automotive
That was so informative!
If you watch those videos of slow-motion cam springs being compressed they can form a "slinky" effect, You can fully compress them static and they have clearance... but (theoretically) at speed the coils could still bounce off each other.
Not saying this is the cause, just food for thought to anyone building an engine with allot of spring compression at high rpm.
Great video and explanations.
Great video. Lot of information.
.895" valve lift....damn. Knowing nothing about these high end big race motors, that lift shocks me. I thought my.627 lift big block was nuts lol.
Years ago I was looking for an engine builder local to where I lived in South Georgia. Told two different shops what I wanted the engine to do and that I wanted the stiffest valve train that could fit under under the the valve covers including bigger than normal pushrods cause that was what started the problem originally. One of the shops tried to convince me that smaller meant lighter and therefore more power, needless to say I didn’t use that shop!
Pete is real damn good at doin’ stuff.
wow that cam was cut real poorly to be bouncing the valves like that crazy stuff . nice work guys and Pete and his cam Man know their stuff and are real good at doing stuff i would say
If it had been in an iron block it would have been ok. But, with all aluminum when the block and heads grow the lash increases. That was basically moving the lifters off the ramps which was making it slam the valves to much.
Pete is a beast! He is as always RGADS
pete is the best jerry, the best!
The boat will be thrashing soon, I hear that Pete guy is Real Good at Doing Stuff.
Love ya Mike from a fellow Georgia guy!!!!! Don’t lift!!!! Fuel inject it and don’t look back!!
Somebody had a bunch of parts they threw at an engine so they could make a quick buck. They just threw around part names to sell it. They didn't check anything when they threw the engine together. Engine wasn't even built to run and I'm surprised it made it pass break in.
I've seen this a few times with guys "happen to have an engine" at the drag track and as soon as somebody buys it they pack up and get out of town. Always a bunch of fancy jewelry on the outside but the inside will be crappy used and/or junk parts.
Dang Brother that dude Pete is real good at doin stuff!!
Man pete really is real good at doing stuff
Pete should do a Polishing Turds series on this engine.
I'm surprised Isky didn't provide a cam card with the regrind. That doesn't sound like them at all.
EFI sounds like a great idea for the extra data gathering.
Good to hear most of the motor is rebuildable.
This guy's a genius
I rewatched the video a few times trying to get a better look at the rocker geometry, to my eyes, it appears someone put a longer valves in to get spring height and didn't adjust tge rocker stand height. The pushrod cup to tip angle is w fuckin mess, the rocker arms hitting the stands, all points to rocker stand height to low for that valve tip height. That's why it's snapping the pushrod tips off. Conbined with that ridiculous lash ramp, it is amazing ut revved up at all.
Revisit those rocker stabd and valve tip heights
Bad ass episode with lots of good info !
I feel good about this. The whole point of this boat was to be carbureted and simple. Once this engine has been gone through and sorted out, I think boat will finally be reliable and fun. Fingers crossed. I also bought a Blasphemi t-shirt today to get in the running for that Datsun! 🙂
My hope is that it stays simple and fun. fingers crossed that's what happens. Thanks for watching and for the support. good luck in the datsun contest.
I have used Mike Jones before and had very good luck he is very precise, so have all your information ready.
Thanks for sharing.
I would trust Pete with anything I own, just from how I’ve seen him carry himself in his videos.
Oh hey it's Pete, I hear he's real good a doing stuff
0.145" clearance, and it still hits? that tells me it's a mismatched spring and valve float situation
Post cam doctor lookover, sounds like I was right on the float, except it's actually the cam ramp that is a mismatch, hadn't thought of that till he said that.
The cam before grinding by Pete's description was almost equiv to a superstock drag cam. instant open/close to get the most out of the stock lift and duration. meaning very peaky in a designated RPM Range but practically useless anywhere else. It's also very harsh on the valvatrain of the engine
Hell yeah love to see you go boat racing this year Pete’s like the evil genius love that guy,give them hell boys.
I’ve always found the valves to be closest at 10-12 degrees before and after TDC at overlap not at max lift🤔
Looks like Pete is good at engines and very good at shooting.
Man Pete is good at doing stuff! can't wait to see side chick in person when im picking up my new datsun 510
It was a lot like what I have seen on "Engine Masters" camshaft show down so it was pretty easy for me to follow.
It's always good to make bad Decisions.... 😂😂 Keep doing what you do!!!
Pete's good at doing stuff.
Love the content finn just be safe brother
I’d love to go down and learn some from Pete. Just to be a fly on the wall for a week a person could learn a lot
Cool video Finn, cam Doctor is awesome