- Position measuring fixture (3), BMW No. 33 2 600, with dial gauge, BMW No. 00 2 510, on crown wheel (4) and secure to housing by means of screw (1).
- Secure measuring arm (2), BMW No. 33 2 604, centrally to crown wheel (4).
Note: Check tooth backlash at three points 120 degrees apart; turn the bevel pinion with the crown wheel.
- Press the crown wheel (4) into the housing with the palm of the hand and turn to and fro to check tooth backlash.
- Backlash (without oil) — 0.07...0.16 mm (0.003...0.006 in)
- Compensate for excessive tooth backlash by inserting a thinner shim washer (4) or insert a thicker one if tooth backlash is insufficient.