How do you check PISTON to VALVE clearance?
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Join Date: Dec 2003
Location: Crawfordville Florida
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First pump up the lifter with oil or bottom the plunger out in the lifter if you don't have a solid roller lifter. Take medeling clay , place a small amount on the piston so the valves will contact. replace cyl head ,set up valvetrain on#1 cylinder with zero lash, turn engine over til on comp. stroke on#1,remove head check the indent in the clay. Now with a dial mic. place the end of the mic opposite from meas. face basically where the rod comes out . wich is like a hieght mic. Lightly set the mic squarely on the indent, insert the rod thru the clay until it contacts the piston . Thats your clearance!! Now add the compressed head gasket thickness ;usually .039".
I shoot for min. .100" ,,,, hope that helps
I shoot for min. .100" ,,,, hope that helps
Last edited by kevinr; 03-31-2007 at 10:43 AM.