Camshaft Oil Seal: Service and Repair

Exhaust Camshaft Seal

Special tools, testers and auxiliary items required

• Seal Puller - General Useage (2085)

• Retainer (3036)

• Assembly Tool (T10071)

• Puller (T40001)

• Engine Support Bridge (10 - 222 A)

• Shackle (1 Set=2 Pieces) (10 - 222 A /12)

• Toothed Belt Tensioner (T10020)

• Locking Pin (T10060A)

Removing

- Remove the engine cover and air filter.


Cover cap of expansion tank with rag and open carefully, as hot steam for example hot coolant may escape when opened.

- Open cap of coolant expansion tank.

- Remove noise insulation.

- Drain the coolant. Refer to => [ Cooling System, Draining and Filling ] Procedures.

- Remove toothed belt. Refer to => [ Toothed Belt, without Divided Toothed Belt Guard ] Toothed Belt, Without Divided Toothed Belt Guard or => [ Toothed Belt, with Divided Toothed Belt Guard ] Toothed Belt, With Divided Toothed Belt Guard.

- Loosen camshaft sprocket, using (3036).






- Pull off the camshaft sprocket using the (T40001) and claws (T40001/6) and (T40001/7).






- To guide seal puller, thread special tool 2085/2 of the (2085) into the camshaft by hand up to the stop.






- Unscrew inner portion of (2085) two rotations (approximately 3 mm) from outer portion and secure with knurled-head screw.

- Lubricate threaded head of (2085) , position and forcefully screw into seal as far as possible.






- Loosen knurled bolt and turn inner part against camshaft until seal is removed.

- Secure the seal remover in a vise at the flat spots. Remove seal using pliers

Installing

• For the correct tightening specifications, refer to => [ Valvetrain Overview ] Valvetrain Overview.

- Do not oil sealing ring sealing lip.

- Place the guide sleeve (T10071/1) from (T10071) on camshaft pin.






- Slide seal over guide sleeve onto shaft pin.

- Remove the guide sleeve.

- Press sealing ring on as far as stop with guide sleeve (T10071/3) and screw (T10071/4) from the (T10071).






- Install camshaft sprocket.

• Note installation position: Thin rib on the camshaft gear points outward - arrows - and the TDC marking on cylinder 1 is visible.






- Install the bolt for camshaft sprocket using the (3036).






• By turning the camshaft, the valves could contact the stationary pistons at TDC. Therefore, the pistons must not be at TDC. Valves/pistons may be damaged.

- Install toothed belt. Refer to => [ Toothed Belt, without Divided Toothed Belt Guard ] Toothed Belt, Without Divided Toothed Belt Guard or => [ Toothed Belt, with Divided Toothed Belt Guard ] Toothed Belt, With Divided Toothed Belt Guard.