Figuring proper pushrod length

revhead347 said:

Ok. There are a couple ways of doing this, and there are some tutorials on the internet. You can basically do it with your pushrod checking tool and a magic marker. Take the magic marker, and mark the top of the valve with a thick layer of markerage. Then set the pushrod tool at a specific length and put the valvetrain together. Spin the motor around, and take the rocker back off. The head of the rocker is going to rub the markerage off in a line on the top of the valve. You want that line to be at the center of the valve. Each turn of the pushrod tool is a specific change in length. Usually 1/10th of an inch. So you don't have to measure the pushrod tool each time you set it. Just keep track of how many revolutions you turn it. And you have my permission to contact Webster, because I'm pretty sure I invented the word "markerage."

Kurt

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