Input Shaft Seal

Input shaft seal

Special tools:
999 7003 Extractor primary shaft seal 999 7003 Extractor Primary Shaft Seal
999 7004 Drift primary shaft seal M56 999 7004 Drift Primary Shaft Seal M56

Note! As the illustrations in this service information are used for different model years and / or models, some variation may occur. However, the essential information is always correct.

Removal

Preparatory work
Before removing the primary shaft seal, see Transmission, removing, B5254T7, M66 Transmission, Removing.

Removing the clutch slave cylinder





Remove:
- the catch on the pipe for the clutch slave cylinder. Remove the pipe. Protect the openings against dirt
- the clutch slave cylinder.

Removing the primary shaft seal




Use puller 999 7003 Extractor primary shaft seal 999 7003 Extractor Primary Shaft Seal for removing the seal.

Note! The screw and socket must be unscrewed when tapping on the extractor.

Tap the extractor into the seal. Tighten the inner socket. Counter hold the outer part at the same time so that the extractor expands against the seal.
Tighten the screw in the extractor and remove the seal.
Check that no residue from the old seal is left in the gearbox.

Installation

Installing the primary shaft seal




Lubricate the lip of the seal. Use grease, P/N 116 1241-3 (80 g).
Use drift 999 7004 Drift primary shaft seal M56 999 7004 Drift Primary Shaft Seal M56 for installing the seal.
Pull the sliding drift sleeve forward. Press the seal into place.
Guide drift on primary shaft. Tap in the seal until the sliding drift sleeve is against the gearbox and in the rear sleeve position.

Checking before installing




Check that the clutch slave cylinder bearing rotates freely and there is no leakage. Check that the sealing ring on the clutch slave cylinder is intact.
Installing the clutch slave cylinder
Install the clutch slave cylinder. Use an M6 screw. Tighten.
Lubricate the seal on the clutch slave cylinder using a little brake fluid. Install the pipe on the clutch slave cylinder using the lock.

Note! Follow-up work: To install the transmission, see Transmission, installing, B5254T7, M66 Transmission, Installing.