Valve Guide: Service and Repair

(valve removed)

Note: In event of excessive clearance between valve stem and valve guide
1. Ream out valve guide
2. Install repair valve with larger stem diameter





Assemble the reaming tool and guide taper (1) from the special tool kit 00 4 210 depending on the shaft diameter. Press guide taper (1) onto valve seat. Starting from combustion chamber side, ream valve guide dry. Rotate reaming tool once in downwards direction.

Note: After reaming out, remachine valve seat.