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)

• Toothed Belt Tensioner (T10020)

• Locking Pin (T10060A)

Removing

- Disconnect the electrical connector on the mass airflow (MAF) sensor (G70) - 3 -.






- Open clips - 1 and 2 - and remove air guide hose from MAF sensor.

- Remove front air intake connector on lock carrier - 4 -.

- Remove engine cover.

Cover cap of expansion tank with a rag and open carefully, as hot steam or hot coolant may escape when opening.

- Open cap of coolant expansion tank.

- Remove center noise insulation fasteners - 1 to 4 -.






- Remove the right noise insulation - arrows -.






- Remove noise insulation frame - arrow -.






- 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.

- Loosen camshaft sprocket, using the (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 bolt.

- 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 seal lip of sealing ring.

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