Cascade Crew

[Leejo2005]

So I recently was embarrased with one of my rocker arms popping off the valve and pushrod due to me not torqueing the lock correctly. Anyways while I had the valve covers off I decided to re-set the lifter preload. Comp specs .030 +/- .010 preload or 1/2-3/4 turns. After setting them all I found that many of the rockers have some play to them. Not towards the pushrod or valve but side to side. Is this a sign of the rocker arms being worn out? I don't know what a worn one would look like. They make a bit of noise, not as loud as when there is no preload applied.

If it turns out they are bad I was wondering if goign to 1.6 ratio arms would be advantageous. I'm running a Comp 08-501-8 and Trick Flow heads. Compression ratio around 10.5:1.

I was very careful finding zero lash and watched the pushrods as I set the preload and could see them move as the preload was applied.

[91RSVert]

Many years ago, the manual for atleast the v6 said 1.5 turns after preload. But then there was no info saying what "preload" was.

I later got preload was just up-down movement, where I thought it was drag when spinning pushroad.

I would say you just dont have enough on it. Last time I did mine, I still had some side-side movement. But no rattle.

[blue89]

I don't know how many times I did my V6 but I think it ended up being 1.25 turns past zero lash. I did zero lash at the point where it didn't spin freely in my fingers.

[Twilightoptics]

1/4-1/2 should be all your need.