Valve Drop and Piston to Valve Clearance

Does anyone want to show/explain how to chk PV clearance with playdoh or silly putty. I've never done it.

TT5.9mag said

One of the very best methods for checking P to V involves 30 cents worth of play doh. Just sayin

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fishmens67 said

I agree, but it only works with the head off.

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