Sealing Flange, Belt Pulley Side

Sealing Flange, Belt Pulley Side

Special tools, testers and auxiliary items required

• Trim removal wedge (3409)

• Oil seal guide sleeve (T03004)

• Hand drill with plastic brush attachment

• Protective eyewear

• Silicone sealant (D 174 003 A2)

Removing

- Remove the ribbed belt for the Air Conditioning (A/C) compressor. Refer to => [ Ribbed Belt ] Ribbed Belt.

- Lock the crankshaft. Refer to => [ Crankshaft, Locking ] Crankshaft, Locking.

- Remove the pulley from the crankshaft.

- Remove the belt tensioner - 1 -.





- Remove the bolts - 2 -.

- Begin at the alignment bushings - arrows - in order to pry off the sealing flange - 1 - using a suitable screwdriver - A -.





- Use the (3409) to support the screwdriver in order to prevent damage to the sealing flange of the cylinder block.

Sealing flange is damaged while removing.

- Pry off the sealing flange completely.

• After removing the sealing flange, clean the (3409) which is intended for the removal of interior parts.

Installing

CAUTION!
To prevent injuries from shavings, wear protective goggles and protective clothing.

- Remove the remainder of sealant from the cylinder block using a rotating plastic brush.

CAUTION!
Make sure that no sealant residue enters the engine.

- Clean the sealing surface of the cylinder block and crankshaft journals; they must be free of oil and grease.

• Do not additionally oil or grease the sealing lip of the sealing flange!

• The following steps must be followed so that the sealing lip of the sealing flange does not roll itself up when installing.

- Widen the sealing lip of the new sealing flange as shown using (T03004).





The surface - A - is the outer side.

- After a short time, remove the (T03004) and slide it rotated 180° into the seal.





(T03004) must stand out approximately 3 millimeter (mm) on the inner side - B -. The surface - A - is the outer side. The surface - B - is the inner side (sealing surface).

- Cut the tube nozzle at the front mark (jet nozzle approximately 2 mm).





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

- Apply a sealant bead - A - as shown into the groove of the sealing flange.





• Width of sealant bead: 2.5 to 3.0 mm

• Height of sealant bead above the sealing surface: approximately 1.0 mm

- Install the sealing flange using (T03004) onto the crankshaft and press uniformly onto the cylinder block.





- Tighten the bolts - A - uniformly in a diagonal sequence.

The rest of the installation follows the reverse of the removal procedures. When doing this note the following:

• Remove the (T40069) from cylinder block and install the locking bolt.

Tightening Specifications