Front Engine Plate: Service and Repair

Sealing Flange, Belt Pulley Side

Special tools, testers and auxiliary items required

• Counter-holder tool (3415)

• Assembly tool (T10053)

• Torque Wrench (V.A.G 1331)

• Torque Wrench (V.A.G 1332)

• Hand drill with plastic brush attachment

• Protective eyewear

• Flat scraper

• Silicone sealant (D 176 404 A)

Removing

- Remove toothed belt. Refer to --> [ Toothed Belt, Removing, Installing and Tensioning ] Toothed Belt, Removing, Installing and Tensioning.

- Remove toothed belt crankshaft sprocket. Secure toothed belt sprocket with counterhold tool (3415).





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

- Unbolt sealing flange belt pulley side.

- Remove sealing flange. If necessary, loosen it by tapping lightly with a rubber mallet.

- Remove sealant residue from cylinder block with a flat scraper.

CAUTION!
Wear safety glasses.

- Remove sealant residue on the sealing flange using a rotating brush such as a drill with a plastic brush attachment.





- Clean sealing surfaces. They must be free of oil and grease.

Installing

• Note the expiration date of the sealant.

• The sealing flange must be installed within 5 minutes after applying the silicone sealant.

- Cut tube nozzle at front marking (nozzle dia. approximately 3 mm).





• The sealing compound bead must not be thicker than 2-3 mm or the excess compound could enter the oil pan and block the oil suction pipe strainer. It could also drip onto the sealing surface of the crankshaft seal.

• Before applying the bead of sealant, cover the sealing surface of the seal with a clean rag.

- Apply silicone sealant to the clean sealing surface of the sealing flange as illustrated. The sealing compound bead must be:

• 2 to 3 mm thick

• And run on inside of bolt holes - arrows -





- Install sealing flange immediately and tighten all bolts lightly.

• To position sealing flange with sealing ring installed, use guide sleeve (T10053/1).

- Tighten sealing flange bolts in a diagonal sequence:

• Tightening specifications, refer to --> [ item 7, 15 Nm ] Service and Repair.

- Install crankshaft toothed belt sprocket:

• Tightening specifications, refer to --> [ item 2, 120 Nm plus an additional / turn (90°) ] Toothed Belt Drive Assembly Overview.

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

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

- Install and tension the toothed belt. Refer to --> [ Toothed Belt, Removing, Installing and Tensioning ] Toothed Belt, Removing, Installing and Tensioning.