adjusting rockers

[Kryp2nitE]

what the spec to adjust rockers for hydraulic cam?


not my car but helping a friend, he says he has adj rockers but with a mopar 509 cam

tapping badly

[firefighter3931]

Usually .020-.030 preload will do it. With the lifter on the base circle of the cam, snug the rocker arm down so that it has some resistance when you try to rotate the pushrod between your fingertips.....then 1/2-3/4 of a turn more.

Ron

[Kryp2nitE]

thanx a lot ron!