Front Crankshaft Seal: Service and Repair

Crankshaft Seal, Belt Pulley Side

Special tools, testers and auxiliary items required

• Seal Remover (3203)

• Counter Support (3415)

• Assembly Tool (T10053)

• Torque Wrench (5-50 Nm) (V.A.G 1331)

• Torque Wrench (40-200 Nm) (V.A.G 1332)

Removing

- Remove the ribbed belt. Refer to => [ Ribbed Belt ] Service and Repair.

- Remove the toothed belt, refer to one of the following:

• With a divided toothed belt guard, refer to => [ Toothed Belt, with a Divided Toothed Belt Guard ] Toothed Belt, with a Divided Toothed Belt Guard.

• Without a divided toothed belt guard, refer to => [ Toothed Belt, without a Divided Toothed Belt Guard ] Toothed Belt, without a Divided Toothed Belt Guard.

- Remove the crankshaft toothed belt gear. To do this, secure the toothed belt gear using the counter support (3415).






- To guide the seal puller, thread the toothed belt gear bolt into the crankshaft by hand until seated.






- Unscrew the inner portion of the seal remover (3203) nine turns (approximately 20 mm) from the outer portion and secure it with the knurled thumb screw.

- Grease the threaded head on the seal remover (3203) , position and forcefully screw as far as possible into the seal.






- Loosen the knurled thumb screw and turn the inner portion against the crankshaft until the seal is pulled out.

Installing

- Wipe off any oil on the crankshaft bearing pin with a clean cloth.

- Position the guide sleeve (T10053/1) onto the crankshaft pin.






- Slide the dry seal over the guide sleeve and onto the crankshaft pin.

- Press in the seal using the assembly tool (T10053) and bolt (T10053/2) (M16 x 1.5 x 60) until seated.






• The contact surface between the toothed belt gear, the diamond disc and the crankshaft must be free of oil.

• The toothed belt gear bolt must be replaced.

• The threads and shoulder must be free of oil and grease.

- Install the crankshaft toothed belt gear - 2 - with the diamond disc - 3 - and tighten the bolt - 1 - hand tight.






- Secure the crankshaft toothed belt gear using counter support (3415).






- Tighten the new toothed belt gear bolt to 90 Nm + an additional 90° (1/4) turn, the additional turn may occur in several steps).

Further installation is in reverse order of removal.

To install the toothed belt and adjust the valve timing, refer to one of the following:

• With a divided toothed belt guard, refer to => [ Toothed Belt, with a Divided Toothed Belt Guard ] Toothed Belt, with a Divided Toothed Belt Guard.

• Without a divided toothed belt guard, refer to => [ Toothed Belt, without a Divided Toothed Belt Guard ] Toothed Belt, without a Divided Toothed Belt Guard.