Replacing rear crankshaft radial seal

AR03.20-P-3063CD

Replacing rear crankshaft radial seal

17.7.12

ENGINE

651 in MODEL 166, 172, 204, 207, 212, 218, 221

1

Crankshaft radial seal

2

Timing case cover

1

Crankshaft radial seal

1s

Protective lip

3

Insertion tool

1d

Lip

2

Timing case cover

3a

Insertion tool



Remove

1

Remove flywheel/drive plate

ENGINE 651 in MODEL 166, 172, 204, 207, 212 (except 212.098/298), 218, 221

AR03.30-P-8001CD

ENGINE 651.9 in MODEL 212.098/298

AR03.30-P-8001EH

2

Press crankshaft radial sealing ring (1) out of the timing case cover (2) using a suitable screwdriver


Do not damage the crankshaft and the sealing surface on timing case cover (2).
The leaktightness of the new crankshaft radial sealing ring (1) will not be achieved anymore otherwise.



Check

3

Check sealing surface for the crankshaft radial sealing ring (1) on timing case cover (2) for ridging; deburr the sealing surface if necessary



Install

4

Push crankshaft radial sealing ring (1) in direction of the arrow onto the insertion tool (3a)


The crankshaft radial sealing ring (1) and the contact surface on the crankshaft must be free of grease.
Grease prevents the inclined webs on sealing lip transporting back the engine oil.

 The sealing lip (1d) and the protective lip (1s) of the crankshaft radial sealing ring (1) must lay correctly over the whole circumference  the insertion tool (3a). Place crankshaft radial sealing ring (1) in place again if this is not the case.

 Insertion tool

*651589016100

5

Place insertion tool (3a) on the crankshaft and tighten down with the two mounting bolts

 Insertion tool

*651589016100

6

Place insertion tool (3) on the insertion tool (3a) and screw on nut

 Align bores in the  insertion tool (3) to the mounting screws in  the insertion tool (3a).

 Insertion tool

*651589016100

7

Screw on nut further and pull in crankshaft radial sealing ring (1) until the insertion tool (3) lies on the timing case cover (2)


The crankshaft radial sealing ring (1) must be flush with the timing case cover (2).
There will be no perfect sealing achieved otherwise.

 Ensure that crankshaft radial sealing ring (1) has been pulled in equally over the whole circumference.

8

Remove mounting bolts for insertion tool (3a) from the crankshaft and remove insertion tool (3) with insertion tool (3a)

9

Install flywheel/drive plate

ENGINE 651 in MODEL 166, 172, 204, 207, 212 (except 212.098/298), 218, 221

AR03.30-P-8001CD

ENGINE 651.9 in MODEL 212.098/298

AR03.30-P-8001EH

10

Check engine oil level, correct if necessary


The engine oil level must lie between "Min" and "Max".
Engine damage can occur otherwise.

 Danger !

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

11

Check for oil leaks with engine running