Valve Guide: Service and Repair

(Valve removed)

Note: If clearance between valve shaft and valve guide is too large, ream out valve guide and install repair valve with larger shaft diameter.





Assemble reaming tool and guide taper (1) from special tool kit 00 4 210 depending on shaft diameter. Press guide taper (1) against valve seat and ream out valve guide (when dry) from combustion-chamber end. Rotate reaming tool once in downwards direction.

Note: After the reaming operation, rework the valve seat, refer to Valve Seat, Service and Repair