Posted July 21, 2011 - 10:38 PM
Cut the seats and lap them. When cutting, use a speed handle or similar tool to help prevent chattering on the seat face. Wherever you stop turning a small imperfection will be created. After you have used the cutter for a few turns, place a piece of paper towel between the cutter and seat and give a couple more turns. This will help remove some of the chatter marks as well. You want a nice even grey ring around the center of the valve face when you are finished. Be sure to clean out all of the lapping compound when you are done - don't want grit in the engine to begin with.
chopperfreak2k1, Rocking416 and KennyP have said thanks