Remove/install timing case cover

AR01.40-S-8000PS

Remove/install timing case cover

18.02.2020

Engine

642 in model 470, 471

1

Timing case cover

4

Oil filter housing

7

Belt pulley

2

Poly-V-belt

5

Poly-V belt tensioning device

8

Center guide pulley

3

Oil line

6

Right guide pulley

15

Center bolt

1

Timing case cover

10

Front radial shaft sealing ring

12

Bolts

8

Center guide pulley

11

Bolts

13

Bolts

9

Crankshaft

14

Pilot bushing

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

 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 front and lower center engine compartment lining.

AR61.20-S-1105P

2

Drain engine oil.



AP18.00-S-0101PS

3

Remove mixer housing.

AR09.20-S-1320PS

4

Remove poly-V-belt (2).

AR13.22-S-1202PS

5

Remove oil line (3) from oil filter housing (4), place it to one side and seal the openings with suitable stop plugs.

 Collect engine oil which flows out.

 Record plug

*129589009100

6

Remove poly-V-belt tensioning device (5).

AR13.25-S-3220PS

7

Remove right guide pulley (6).

AR13.20-S-0018PS

8

Turn the engine by the center bolt (15) of the crankshaft (9) in the direction of engine rotation tunil the TDC marking on the belt pulley (7) lines up with the web (arrow) on the timing case cover (1).


Rotate engine clockwise.
Otherwise damage will occur to the engine.

 Socket wrench bit

*001589650900

9

Remove the front radial shaft sealing ring (10).

AR03.20-S-3004PS

10

Remove screws (11).

11

Remove bolts (12, 13).

12

Heat up the timing case cover (1).



000 588 00 84 00 Heat gun

WS54.00-P-0049B

13

Remove the timing case cover (1).

14

Remove pilot bushings (14).


The pilot bushings (14) must be removed from the cylinder block because they are no longer needed.
They could otherwise damage the sealant path and result in leaks.

15

Remove the center guide pulley (8) from the timing case cover (1).

If the timing case cover (1) is replaced.

AR13.20-S-0019PS



Clean

16

Clean sealing surfaces.

AR01.00-P-0050-01A


Do not use any sharp-edged tools or abrasive paper.
Otherwise, this damages the sealing surfaces.

Loctite 7200

*BR00.45-Z-1038-04A

Loctite 7063 (400 ml) cleaning spray

*BR00.45-Z-1046-04A



Install

17

Mount the center guide pulley (8) on the timing case cover (1).

If the timing case cover (1) has been replaced.

AR13.20-S-0019PS

18

Apply sealant.

Notes on sealant path for timing case cover

AH01.40-N-1000-01SE

Sealant, Loctite 5970, 50 ml

*BR00.45-Z-1013-01A

 Application gun

*112589002500

19

Position the timing case cover (1).


Carefully position the timing case cover (1).
You could otherwise damage the sealant path, which could cause leaks.

20

Tighten screws (13).

 Bolt, timing case cover to crankcase

*BA01.40-N-1002-01S

21

Remove the screws (13) and push the centering sleeve onto the crankshaft.

 Centering sleeve

*642589001400

22

Align the timing case cover (1) with the centering sleeve.

 Centering sleeve

*642589001400

23

Tighten screws (12, 13).

 Bolt, timing case cover to crankcase

*BA01.40-N-1002-01S

24

Tighten screws (11).

 Bolt, oil pan to timing case cover

*BA01.45-N-1006-01PS

25

Install the front radial shaft sealing ring (10).

AR03.20-S-3004PS

26

Install belt pulley (7).

AR03.30-S-1700PS

27

Install the right guide pulley (6).

AR13.20-S-0018PS

28

Install the poly-V-belt tensioning device (5).

AR13.25-S-3220PS

29

Replace the O-ring on the oil line (3).

 Assembly tool

*000589936300

30

Remove the stop plugs from the openings and attach the oil line (3) to the oil filter housing (4).

 Bolt, oil line to oil filter housing

*BA18.20-N-1004-01PS

31

Install poly-V-belt (2).

AR13.22-S-1202PS

32

Install the mixer housing.

AR09.20-S-1320PS

 Only install upper engine cover after the leak test.

33

Add engine oil.



AP18.00-S-0101PS



Check

 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

34

Perform engine test run and check engine in area of timing case cover (1) for leaks.

35

Install front and lower center engine compartment lining.

AR61.20-S-1105P

 Crankcase, timing case cover, bottom half of crankcase

Number

Designation

Engine 642 in model 470, 471

BA01.40-N-1002-01S

Bolt, timing case cover to crankcase

Nm

10

 Oil pan

Number

Designation

Engine 642 in model 470, 471

BA01.45-N-1006-01PS

Bolt, oil pan to timing case cover

M6

Nm

14

 Oil filter

Number

Designation

Engine 642 in model 470, 471

BA18.20-N-1004-01PS

Bolt, oil line to oil filter housing

Nm

8

Repair materials

Number

Designation

Order number

BR00.45-Z-1013-01A

Sealant, Loctite 5970, 50 ml

A 003 989 98 20 10

BR00.45-Z-1038-04A

Loctite 7200

Henkel AG & Co. KGaA
http://www.loctite.de

BR00.45-Z-1046-04A

Loctite 7063 (400 ml) cleaning spray

A 001 986 71 71 09