Thread: Push Rod length

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I tried to keep all my posts to one thread but it doesn't get much response (except from you Pat ). So I'll try it again to see if I'm on the right track, I'm not really sure I understood your way Pat I tend to need pictures to help me.

I consulted this link that shows the checker I bought from Summit.

http://www.thedirtforum.com/pushrodlengths.htm

From this I got my max lift of .48 subtracted from .60 is .12, divided by 3 gives me .04 gap. With the preload adjustment of .021 My total is .061" total.

So I measured with the lifter fully down but not compressed and I have a gap between the pushrod and the measuring tool of .039. So I guess that means my pushrods are .039" too short??? I went today and bought .05 over and installed them on four of the lifters. The roller looks to be just slightly in from center on the valve when the lifter is all the way in and just slightly out at max lift. The directions with my AFR heads say stock should work but up to .1 over might be required. Does this sound like I'm doing it right??

Spent two hours today taking out the inner springs for the break-in. Had to use an old leaf spring with a hole drilled in it and cut a slot in the end, ground it up shiney and it worked like a charm. I think I'll go buy the proper tool to put them back in, that usually means I'll never have to use it again .

Here it is so far. Oh yea this is for a Comp hydraulic flat tappet cam.

Thanks,
Sean