Sealing Flange, Belt Pulley Side

Sealing Flange, Belt Pulley Side

Special tools, testers and auxiliary items required

• Counter Support (3415)

• Assembly Tool (T10053)

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

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

• Hand Drill with Plastic Brush Attachment

• Silicone Sealant (D 176 404 A2)

• Flat Scraper

Removing

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

- Remove the toothed belt. Refer to => [ Toothed Belt ] Service and Repair.

- Rotate the crankshaft slightly backward.

- Loosen the crankshaft toothed belt gear bolt by holding the gear using the counter support (3415).






- Drain the engine oil.

- Remove the oil pan. Refer to => [ Oil Pan ] Service and Repair.

- Remove the sealing flange, belt pulley side.

- Remove the sealing flange , if necessary use a rubber mallet and tap it gently.

- Remove any sealant residue on the cylinder block using a flat blade scraper.

- Cover the seal with a clean cloth.

- Remove any sealant still on the sealing flange using a rotating plastic brush. Wear protective eyewear.






- Clean the sealing surface so that it is free of oil and grease.

Installing

- Cut the sealant tube nozzle at the front mark (nozzle diameter: approximately 0.12 in).






- Apply a sealant bead with a diameter of about 2 to 3 mm to the clean sealing surface of the sealing flange as shown - arrows -.

• Cover the seal with a clean cloth before applying the sealant bead.

• The sealant bead must not be thicker than 2 to 3 mm. Otherwise excess sealant could enter the oil pan and clog the oil intake tube.

• Note the expiration date of the sealant.

• The sealing flange must be installed within 5 minutes after application of the sealant.

• To attach the sealing flange with the installed seal, use the guide sleeve (T10053/1).

• After installing, allow the sealant to dry for approximately 30 minutes. Only after then may the engine oil be added.

- Position the sealing flange immediately and tighten all the bolts - arrows - hand tight.






- Tighten the sealing flange bolts in a diagonal sequence.

Tightening specification: 15 Nm

- Remove any excess sealant.

- Install the oil pan. Refer to => [ Oil Pan ] Service and Repair.

- If necessary, install the seal. Refer to => [ Crankshaft Seal, Belt Pulley Side ] Service and Repair.

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

• The crankshaft 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 disc - 3 - and tighten the bolt - 1 - hand tight.






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






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

Further installation is in the reverse order of removal.

Install the toothed belt and adjust the timing. Refer to => [ Toothed Belt ] Service and Repair.