Quote:
Originally Posted by ibinazbass
I bought the intake used therefore it came with no directions.
On another forum a guy said to spin the push rods and once they don't spin tighten them another 1/4 turn.
WHO DO I LISTEN TO?
If I get multiple people telling me to just stop once they stop spinning then thats what i'll do. but until i hear from people one way or the other i might not do it. Not trying to be disrespectful.
|
Small block Chevy uses hydraulic lifters. You need to add some pre-load to them; there is no "gap" to set. The guy on the other forum is right - rotate the cam until the lifter is on the heel of the lobe, bring the adjustment down until you have zero clearance, then go another 1/4 turn. Anything from 1/8 turn to 3/4 turn should be fine. My own machinist/race builder goes 1/2 turn on stock GM hyrdraulic lifters.
The tricky parts are rotating the cam to the right place and finding zero lash. Also, the lifters are collapsible, so you need a soft touch when you're spinning the pushrod. You should also be feeling for lash (up/down movement) and going slowly. HTH