Sorry to ask this question again. I know it has been discussed before but I searched and could not find it. Can someone go through the procedure for setting the adjustable pushrods once the rocker assemblies have been installed? Does anything have to be done to the lifters or do you just drop then in the bores? Thanks, Randy P.S. It sure is great having you guys hear to help with all these questions.
you shouldnt have to touch the lifters and heres how i do it and have no problems and dont have to readjust . engine cold, install pushrods loose and tighten each one till you start to feel a little resitance when you roll it in your fingers, this is done when the valve is closed completely. make sure to tighten the nuts good or they will work loose. it takes a little pratice but is ez once you do it a few times. its alot like adjusting rockers on a chevy
I was told, and did this with mine, that once the "wiggle" is out of the pushrod, you should go another 1/3 to 1/2 turn to set the pre-load on the lifter. It takes a little bit of time, but not hard to do. Just make sure your rocker shafts are properly torqued down, your lifters have been oiled, and the pushrods are aligned properly. Good luck. Phil
I forgot to say in my inquiry, these are new lifters. Does anything need to be done since they are not pumped up or is the above procedure still correct? When you talked about oiling, you are refering to the outside of the lifter in the bore and on the cam shaft, right? Thanks again, Randy
Randy, I have a procedure that I have posted before. It allows you to adjust 4 valves at a time. To adjust the pushrod on a valve, the lifter must be on the heel of the that particular cam lobe. This procedure does that for 4 valves at a time. To follow it, you need to mark your balancer at 180*(1/2 way around). Position the timing mark at TDC #1 firing) Then adjust Intake valves for #2 and #7 cylinders, and exhaust valves #4 and #8. Then turn the crank(with 1/2" drive socket) 180*. Now adjust #1 and #8 intake valves, and #3 and #6 exhaust. Rotate crank 180*. Now adjust #3 and #4 intake valves, and #5 and #7 exhaust. Rotate the crank 180*. Now adjust #5 and #6 intake valves, and #1 and #2 exhaust. Make a diagram of the engine to illustrate valve position so you don't get confused. Drivers side cylinders are 1,3,5,7 and passenger side is 2,4,6,8. From the front of the engine to the rear, the valve arrangement is Ex-In-In-Ex-Ex-In-In-Ex. This is the same for both sides. You want to adjust the pushrod 1/2-3/4 of a turn past 0 lash. Just go slow and you should be fine. Hope that helps.
