Quote:
Originally Posted by blackgn231
I got a dial indicator and my push rods should have been 8.250 at least thats what the box said but they came out to 2.840 are push rods off this much normally I its only a 1000 but what gives? This push rod thing is driving me nuts I read the way to do it from Comp cams about marking the push rod but its black so how do you mark it? Am using a adjustable one now ,Have been told to adjust it till it just starts pushing the lifter cup and stop pull it and add 40 thousands to that for the preload.
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I don't really understand your numbers there. A dial indicator is something you would use to measure movement. Do you mean caliper? Either way what do you mean when you say the came out to "2.840" and "it's only 1000"?
If you have an adjustable just make sure the pushrod you're measuring for has the lifter on the base circle. Then stick it in there and adjust it out until it's snug. You don't want the valve or the lifter plunger to move. Lock the pushrod, remove it, and measure it. Write down the measurement and do the next one. When you have all of them done look at your measurements. If they are pretty close get a set of pushrods that puts the preload at about .040" on at many as possible. It's ok to have a little leeway here. The nice thing about a hydraulic cam is you don't have to be exact on every one. HTH james