Seals and Gaskets: Service and Repair

Replacing the primary 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

Removal

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.

Note! Preparations, see Removing the transmission Transmission, Removal.

Removing the clutch cylinder




Remove the rubber seal from the clutch cover. Move it inwards on the pipe towards the clutch cylinder.
Pull out the retaining clip locking the quick-release connector on the pipe to the junction.
Remove the adapter. Keep it in a plastic bag to prevent contamination. Install a protective plug in the end of the pipe.
Remove the clutch cylinder.
Clean the mating surfaces in the clutch cover. Check any leakage from the transmission.

Installing the extractor for the primary shaft seal




Tap in the extractor for the primary shaft seal.
Use extractor 999 7003 Extractor primary shaft seal 999 7003 Extractor Primary Shaft Seal.

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

Tap the tool into the seal. Tighten the inner socket. Counter hold the outer part at the same time so that the tool expands against the seal.
Tighten the screw in the extractor. Remove the seal.

Installation

Installing the new primary shaft seal




Lubricate the lip of the primary shaft seal. Use grease, P/N 1161241-3.
Use drift 999 7004 Drift primary shaft seal M56 999 7004 Drift Primary Shaft Seal M56 when installing the primary shaft 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 transmission and in the rear sleeve position.

Installing the clutch cylinder




Tighten the screws. Tighten to 10 Nm .
Thread the rubber seal onto the pipe with the boot turned towards the clutch cylinder.
Remove the protective plug. Install the junction. Always use a new quick-release connector with a rubber seal.
Lubricate the rubber seal using a drop of brake fluid. This facilitates joining.
Press the pipe into the junction. Lock the pipe using the clip.

Installing the rubber seal for the pipe in the clutch cover




Ensure that the rubber seal locates all the way around.

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