Valve Guide

Valve-Guide Inner Diameter





1. Measure the inner diameter of the valve guides in two directions where indicated.
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2. If the valve guide is not within specifications, ream the valve guide and install a valve with an oversize stem or remove the valve guide and install a new valve guide.

Valve-Guide Reaming





1. Use a hand-reaming kit to ream the valve guide.
2. Reface the valve seat.
3. Clean the sharp edges left by reaming.