I'm looking for advice on how to accurately measure my pushrods using the comp pushrod checker (note: I've never done this before).
Specific questions/restrictions:
- I do NOT want to buy a solid version of my hydraulic lifters just to measure pushrod length
I'm not super in love with the idea of taking one lifter apart and shimming it with washers, if I don't have to
How do I accurately measure the pushrod length and account for the fact that the hydraulic lifter will be collapsed?
Idea: Can I just use my distributor hole-based oil pump shaft and an 18v drill with a zip tie over the trigger (1,600 RPM) to adequately fill the lifters to help get an accurate measurement?
-My springs are 145# closed, 350# open- can I measure push rod length with these springs installed or do I need checker springs to avoid collapsing the lifters even with the drill prime hack?
Note: I have short travel, low bleed-down rate Johnson (now Scorpion) lifters- I'm kind of hoping that this may help the drill prime solution to work.
Is there a better method? -Should I just forget all this stuff and just ask Johnson how much extra length to add to my measurement to make up for the lifter being collapsed and forgot all the drill or shim funny business?!?
Thanks!
Adam