Sealing Flange Overview

Sealing Flange Overview






1 Bolt

• 120 Nm + an additional 90° (1/4) turn.

• Always replace.

• Use the counter support (3415) to loosen and tighten.

• Do not lubricate or grease the threads or collar.

• The additional turn can occur in several stages.

2 Crankshaft Toothed Belt Gear

• There must be no oil on the contact surface between the toothed belt gear and the crankshaft.

• Only possible to install in one position.

3 Seal

• Do not lubricate or grease the sealing lip on the seal.

• Before installing, remove any remaining oil from the crankshaft journal with a clean cloth.

• Replacing, refer to => [ Crankshaft Seal, Belt Pulley Side ] Service and Repair.

4 Sealing Flange

• Must be seated on the alignment pins.

• Removing and installing, refer to => [ Sealing Flange, Belt Pulley Side ] Service and Repair.

• Install using silicone sealant (D 176 404 A2). Refer to => [ Sealing Flange, Belt Pulley Side ] Service and Repair.

5 Cylinder Block

• Crankshaft overview. Refer to => [ Crankshaft Overview ] Crankshaft Overview.

• Piston and connecting rod overview. Refer to => [ Pistons and Connecting Rod Overview ] Service and Repair.

6 Alignment Pin

• Quantity: 2

7 Bolt

• Tightening sequence and specification, refer to => [ Sealing Flange Bolt Tightening Sequence and Specification ].

Sealing Flange Bolt Tightening Sequence and Specification





- Tighten the bolts in 3 steps in the sequence shown: