11 12 600 Reaming a valve guide (M62, S62)

WARNING: This page is about a different car, the 2003 BMW Z8, 2002 BMW Z8, 2001 BMW Z8, and 2000 BMW Z8. However, it is still accessible from the selected car via links, so may be relevant.

(valve removed)

NOTE: In event of excessive clearance between valve stem and valve guide:

Ream out valve guide
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.

Fig 1: Reaming Valve Guide

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: After reaming out, remachine valve seat,

refer to 11 12 527 REMACHINING A VALVE SEAT (M62, S62) .