11 12 600 Reaming a valve guide (M52 / S52 / M52TU / M54 / M56)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2006 BMW X5, 2006 BMW X3, 2005 BMW X5, 2005 BMW X3, and 2004 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

00 4 210

(valve removed)

NOTE: In event of excessive clearance between valve stem and valve guide:
Valve guide is reamed and a repair valve with a larger stem diameter is installed.

Assemble reaming tool and guide taper (1) from special tool kit 00 4 210 depending on stem 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: Pressing Guide Taper Onto Valve Seat

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Remachine valve seat after reaming. Refer to 11 12 527 REMACHINING A VALVE SEAT (M52 / S52 / M52TU / M54 / M56) .