5.7L OMC valve lash adjustment

Don S

Honorary Moderator Emeritus
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Re: 5.7L OMC valve lash adjustment

Don S Yes Im all about some sarcasm. I threw some back at you. :cool:

I knew that, my reply was directed at lynnboy that didn't understand it. :facepalm:

"Loosen the adjusting nut on the rocker until you can feel lash (play in
the push rod) and then tighten the nut until the lash has been removed.
Carefully jiggle the push rod while tightening the nut until it won't move
anymore-this is zero lash. Tighten the nut an additional full turn
"

THERE is where everyone gets in trouble when following the instructions.
When you are moving the pushrod and tightening down the rocker arm nut, you tighten it down until it just stops the movement of the pushrod. That's it for zero lash, you do not do it again you dont move the pushrod again, because it will move. You stop the push rod one time and one time only. Then turn the rocker nut down either 3/4 or 1 turn what ever YOUR manual says, and then you are done with that lifter and you move on to the next.
Now, if you have any problems with the lifters being too tight or too loose, then you need new lifters or attempt to rebuild your lifters. Because there is a problem with them.
 
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