Replace rear radial shaft sealing ring

AR03.20-P-3003MFF

Replace rear radial shaft sealing ring

30.07.2020

Engine

654 in model 118, 177, 247

Modification notes

20.07.2020

Method revised.

Operation steps 5, 6

1

Radial shaft sealing ring

3

Insertion tool

3a

Insertion tool

2

Timing case cover

3

Insertion tool

3a

Insertion tool

4

Insertion device

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

 Caution

Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil

Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.

AS18.00-Z-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A



Remove

1

Remove flywheel/drive plate.

AR03.30-P-8001MFF

2

Pry radial shaft sealing ring (1) out of timing case cover (2) using a suitable tool.


Do not damage crankshaft and sealing surface of timing case cover (2).
Leaks can occur otherwise.



Check

3

Check sitting surface of the radial shaft sealing ring (1) on the timing case cover (2) for ridging and damage.

If ridging exists



deburr sitting surface.

If damage is present,



Replace timing case cover (2).

AR01.40-P-8000MFF

4

Check crankshaft for galling and damage.

If problems exist,



Install new crankshaft.

AR03.20-P-4351MFF



Install

5

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


Sealing surface between radial shaft sealing ring(1) and timing case cover (2) must be grease-free.
Otherwise, the leaktightness of the radial shaft sealing ring (1) can no longer be guaranteed.

 Insertion tool

*651589016100

6

Attach insertion tool (3a) to crankshaft and fix in place with two screws.

 Insertion tool

*651589016100

7

Slide insertion device (4) onto insertion tool(3), position on insertion tool(3a), and tighten nut slightly by hand.

 Align bores in insertion tool (3) with the screws in insertion tool (3a).

 Insertion device

*654589014300

 Insertion tool

*651589016100

8

Tighten nut further and draw in radial shaft sealing ring(1) until insertion device(4) makes contact with timing case cover(2).


The radial shaft sealing ring(1) must be flush with the timing case cover(2).
Otherwise, leaks will occur.

 Install radial shaft sealing ring (1) uniformly along entire circumference.

9

Remove screws of insertion tool (3a) from crankshaft and remove insertion tools (3, 3a) with insertion device (4).

 Insertion device

*654589014300

 Insertion tool

*651589016100

10

Install flywheel/drive plate.

AR03.30-P-8001MFF

 Only install lower engine compartment paneling after leak test.

11

Check engine oil level and correct.

Engine 654 in model 118, 177, 247



Engine 654 in model 177, 247

AP18.00-P-1812MFA

Concluding tasks

 Warning

Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.

Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.

AS49.00-Z-0001-01A

 Warning

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

12

Perform engine test run. While doing so, check engine for proper operation and leak tightness.

13

Install lower engine compartment lining.

AR61.20-P-1105MFE