Valve stem to guide clearance..
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Join Date: Jan 2002
Location: Brick, NJ
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Valve stem to guide clearance..
I have been told of a special tool to check the guide to stem clearance on cylinder heads. Instead of the "old" method of setting a dial indicator up so you can see the "rock" between the stem and guide, this tool offers a closer measurement. The tool is like a dial indicator that will "slip into" the guide, with slight interference fit, and gives you the ID of the guide, then you just measure the OD of the valve stem with a micrometer and subtract. I did not know about this method and would like to know if anybody uses it or have I been given incorrect information.