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Valve Seats

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Tuneturkey

Well-Known Member
Joined
Dec 29, 2018
Messages
128
Location
10113, Hyde Park Ct., Baton Rouge, LA 70816
I am installing new valves on a 1/2 VW build, and the exhaust valve seats re-used heads)are not clean and shiney as are the intake valve seats. The seats have been lapped with the old valves to clean up the seats, but the coating of carbon or corrosion and discoloration did not come off. The valve seats firmly, but does not appear to be leak tight. How complicated is the valve grinding process, and how clean should the seats be?

Johnc
 
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