Re: Valve Adjustment
I assume you're talking about hydraulic lifters.......
Your intial procedure is correct, that is, get the lifter on the low spot on cam lobe. Then, tighten nut until all play is just barely out of pushrod. You can feel it easy as the pushrod will spin by hand with no effort if it's too loose, then as you adjust nut down, there will be a small amount of effort required to rotate pushrod. This is zero lash. Getting an accurate "zero lash" is the most important part of the process. By tightening the pushrods until you can't turn them, you may actually have gone well beyond zero lash......
Once zero lash is established, I normally go about 1/8 turn more for hydraulic lifters.
Dave F. in Rhode Island
'68 Camaro SS Accel DFI 454 (SOLD - I'm a boring Corvette owner now)
Bought my first big-block Chevy in 1970