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327 350 engine roller rockers
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#42 ·
Bob and Gene are on it.
A mention about Rhodes lifters. They will sound like a solid at idle.
If all valves are adjusted properly you should see the same oil flow off the rocker.
What is the idle rpm ?
The EOIC method is time consuming but not messy.
The running method is messy. With poly locks I would not do it that way.
There is the 90* method that is non running and super easy. The hillbilly's at vice grip garage, you tube, 2/4/2019.
 
#43 · (Edited)
mrpaticular said:
Bob and Gene are on it.
A mention about Rhodes lifters. They will sound like a solid at idle.
If all valves are adjusted properly you should see the same oil flow off the rocker.
What is the idle rpm ?
The EOIC method is time consuming but not messy.
The running method is messy. With poly locks I would not do it that way.
There is the 90* method that is non running and super easy. The hillbilly's at vice grip garage, you tube, 2/4/2019.
Click to expand...
Roller rockers do not throw oil like stamped rockers do. Much is channeled to the fulcrum’s. I use both the EOIC (during build) or running methods and using the oil deflecting clips little to no oil is thrown or lost with stamp rockers. These cars are 50 years old and running hot was how it was done for both solid and hydraulic cams so I fail to see the big problem. Just because we are using locking nuts changes nothing except it requires two hands which I have. I had no issue running hot with my wife’s full roller cam and roller rockers setup and it helped me find disappearing lobes for the original flat cam. I would adjust and a few minutes later it would be clacking again x2. Aside from using micrometers it’s a quick way to find a wearing lobe or some other valve train issue like a bad lifter.
 
#44 ·
There is the hack way and the right way, take your choice. Use whatever way you feel like. I disagree with your comment " running hot was how it was done". That there is an incorrect statement. There were no car companies doing what you claim 50 years ago, it just didn't happen. I was there 50 years ago and we never did it that way.
 
#45 ·
Texas Squirrel said:
There is the hack way and the right way, take your choice. Use whatever way you feel like. I disagree with your comment " running hot was how it was done". That there is an incorrect statement. There were no car companies doing what you claim 50 years ago, it just didn't happen. I was there 50 years ago and we never did it that way.
Click to expand...
I have no idea where you were or what you were doing 50 years ago. Even the Chiltons referred to hot adjustments. Obviously you have no problem calling many of us hacks that stated they used that method successfully.
 
#46 ·
Roushguy said:
I have no idea where you were or what you were doing 50 years ago. Even the Chiltons referred to hot adjustments. Obviously you have no problem calling many of us hacks that stated they used that method successfully.
Click to expand...
You don't have to make any valve adjustments hot. You can if you want to. There isn't a car company out there that did it that way. If you have to rely on Chilton manuals then I don't think you have much of an argument.
 
Discussion starter · #49 ·
mrpaticular said:
Bob and Gene are on it.
A mention about Rhodes lifters. They will sound like a solid at idle.
If all valves are adjusted properly you should see the same oil flow off the rocker.
What is the idle rpm ?
The EOIC method is time consuming but not messy.
The running method is messy. With poly locks I would not do it that way.
There is the 90* method that is non running and super easy. The hillbilly's at vice grip garage, you tube, 2/4/2019.
Click to expand...
Had I even suspected there would have been a valve issue I would have done EOIC (I even had the intake off) 🙄

What I got from the previous owner was "runs great" ... lol. I should have known better.
 
#51 ·
Some hydraulic flat-tappet cams are a little noisy - the Comp XE series, for instance. I would adjust them with the engine warm and running as discussed above, 1/4 to 1/2 turn past clatter. I have an old valve cover with the center cut out for this purpose - keeps from getting oil all over the place.
 
#53 ·
Texas Squirrel said:
There is the hack way and the right way, take your choice. Use whatever way you feel like. I disagree with your comment " running hot was how it was done". That there is an incorrect statement. There were no car companies doing what you claim 50 years ago, it just didn't happen. I was there 50 years ago and we never did it that way.
Click to expand...
I'll post it again.
Now tell me why it's hack.
Tell me where the error in adjustment occurs.

 
#56 ·
It's the WAY in which you go about pointing it out. If you don't understand what I'm saying then it's probably not something you're wired to understand.
 
#57 · (Edited)
Folks, unass all that. Lets NOT let CIVILITY die. You say TOE mato , I say ta MATO...... TEXAS SQUIRREL - I';m not messing with you, but I KNOW was told to do it hot back in the day, by racers intimate with Chevy power. ... well hell's bells' it was from a GM service manual, come to find out. I think I only did my LT1 cam ONCE " hot and running " as it created A MESS! . but there ya go :CRG Research Report - 302ci Engine OEM Valve Adjustment
 
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#58 ·
I get what you are saying Gene but if you read the article you posted this what it also said:

There is, however, a better way to adjust the valves with a "30-30" - you can set them "cold and not running"
 
#59 ·
This is the whole paragraph from Gene's article:

There is, however, a better way to adjust the valves with a "30-30" - you can set them "cold and not running" by setting the intakes at 90 degrees ATDC (after TDC) and the exhausts at 90 degrees BTDC (before TDC) - at these points the lifters are on the base circle rather than the ramps. This has been confirmed with cam-lift/crank-angle diagrams, and results in a nice mechanical "singing" sound without "clacking"; it runs better, sounds better, idle is more stable, and throttle response is improved. Many other Corvette "30-30" and Z/28 owners have followed this procedure since we developed it and all have seen the same positive results.
 
#60 ·
I don't think his point was that setting them hot and running is the best way. It looks like his point was that Chevrolet did, in fact, recommend setting them that way on an actual Chevrolet engine, which sort of busts the whole "hack" thing you've been throwing around a lot in this thread.
 
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