Didn't want to hijack the other Isky guideplate thread!

I'm setting up my adjustable Isky guideplates to get the roller tip centered on the stem. Snugged up the nut and wiggled the rocker arm back and forth so the pushrod would contact either side of the slot to see the extremes of the roller tip movement. In addition to that movement there is also sideways movement of the trunnion in the rocker arm, which adds to the roller tip movement.

How much is acceptable movement of the trunnions?

I assume I should be setting the guideplates to center the tip based on the overall possible motion.

There's some variance in trunnion motion between rocker arms, so should I keep each rocker arm paired up with which ever stud it was on when setting the guideplates?

 

Anyone happen to have a set of Pro Mag rockers that they could measure the side-to-side play in the trunnions? I don't think there's a problem with mine but this would put my mind at ease.

 

Jeff, you are doing it the correct way. I would keep each Rocker associated with it's valve, but there should not be a huge difference in the side to side, but some do have a tad more than others.

"I assume I should be setting the guideplates to center the tip based on the overall possible motion."

YES

Fun task to setup those guideplates huh!

Bret