AR03.20-P-3063-01OM Installing Rear Crankshaft Radial Seal

AR03.20-P-3063-01OM Installing rear crankshaft radial seal

Crankcase, timing case cover, end cover:

Special Tools:

Repair materials:

Component Identification:

The lips of crankshaft radial sealing ring (1) must not be touched.

When using insertion tool (271), always ensure that lip (1d) of crankshaft radial sealing ring (1) is correctly aligned.

The crankshaft radial sealing ring (1) and contact surface (3a) on crankshaft flange (3) must not have any oil and grease on them.

1 Clean and degrease crankcase (4) in area of sealant application as well contact surface (3a) on crankshaft flange (3).
The contact surface (3a) must not be cleaned with abrasive paper; this damages the crankshaft surface.

Component Identification:

2 Clean and degrease sealing surface of new end cover (2).
3 Apply sealant in the form of a bead with a diameter of around 2.0 mm on crankcase (4) and oil pan.
Use exclusively approved sealants. Do not spread bead (A). Mount end cover (2) within 5 minutes after applying sealant.

Component Identification:

4 Fit insertion tool (271) and insertion tool (271a) together.
Upon subsequent assembly, the conical form of the insertion tool (271a) presses the lip (1d) into the correct direction.
5 Slide end cover (2) with crankshaft radial sealing ring (1) on insertion tool (271) fitted together.
Ensure that the lip (1d) points towards output side, that is towards the engine.
6 Detach insertion tool (271a) from insertion tool (271).

Component Identification:

7 Insert insertion tool (271) with preassembled end cover (2) or crankshaft radial sealing ring (1) into crankshaft flange (3).
8 Slide end cover (2) with crankshaft radial sealing ring (1) carefully on contact surface (3a) of crankshaft flange (3).
While doing this, check the correct installation position of the lip (1d).
A wrong installation position leads to leakage.
The lip (1d) must point towards the crankcase (4) all around its circumference.
9 Detach insertion tool (271) from crankshaft flange (3).
10 Check the correct installation position of the protective lip (1s).
An incorrect installation position leads to premature wear of crankshaft radial sealing ring (1).
The protective lip (1s) must point towards the transmission housing around its entire circumference.
11 Tighten bolts (2a) gradually diagonally.