Valve Guide: Service and Repair

1. Using the push rod and a press, remove the valve guide toward cylinder head gasket surface.
2. Rebore valve guide hole to the new oversize valve guide outside diameter. Valve guide hole diameter:
0.05 O.S. 11.05 - 11.07 mm (0.4350 - 0.4358 inch)
0.25 O.S. 11.25 - 11.27 mm (0.4429 - 0.4437 inch)
0.50 O.S. 11.50 - 11.52 mm (0.4528 - 0.4535 inch)

NOTE: Do not install a valve guide of the same size again.

3. Using the push rods press fit the valve guide, working from the cylinder head top surface.
4. After installing valve guides, insert new valves in them to check for sliding condition.
5. When valve guides have been replaced, check for valve contact and correct valve seats as necessary.