Replacing rear crankshaft radial seal

AR03.20-P-3063OLD

Replacing rear crankshaft radial seal

3.8.15

Engine

651 in model 205, 253

1

Radial shaft sealing ring

2

Timing case cover

1

Radial shaft sealing ring

2

Timing case cover

1d

Sealing lip

3

Insertion device

1s

Protective lip

3a

Insertion device



Remove

1

Remove flywheel/drive plate

AR03.30-P-8001OLD

2

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

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



Check

3

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



Install

4

Push radial shaft sealing ring (1) in direction of arrow on the insertion device (3a)


The radial shaft 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 radial shaft sealing ring (1) must lay correctly over the whole circumference on  insertion device (3a). Place radial shaft sealing ring (1) in place again if this is not the case.

 Insertion tool

*651589016100

5

Place insertion device (3a) on the crankshaft and tighten down with the two screw/bolts

 Insertion tool

*651589016100

6

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

 Align bores in  insertion device (3) to the screw/bolts of the  insertion device (3a).

 Insertion tool

*651589016100

7

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

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

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

8

Remove screw/bolts for insertion device (3a) alternately from the crankshaft and insertion device (3) with insertion device (3a)

9

Install flywheel/drive plate

AR03.30-P-8001OLD

10

Check engine oil level, correct if necessary



AP18.00-P-1848U

 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