Quote:
Originally Posted by professor
Oh, before I forget, how much play should there be between the stem and the guide? How does one figure out that it's ok?
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The play will be minimal and inconclusive when you have compressed air in the cylinder as the valve will be supported by the seat. If you feel brave you can release the air from the cylinder and wiggle the valve stem, but never let go of it as it may drop out of reach into the engine. As to the spec for the guide play someone else will need to give you that or search out a repair manual.