Remove/install balance shaft

AR03.20-D-1000TSV

Remove/install balance shaft

18.02.2020

Engine

642 in model 907

Shown on engine 642.96

1

Balance shaft

5

Hole

9

Screw

2

Cap

6

Correctional weight

10

Crankshaft

3

Crankcase

7

Drill bit (Ø 8.5 mm)

11

Timing chain

4

Screw

8

Bracket

12

Cable tie

 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 threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

 

Remove/install

1

Remove radiator.

AR20.20-D-3865TSV

2.1

Remove flywheel.

Engine 642 in model 907 with transmission 711.6

AR03.30-D-8002TSV

2.2

Remove drive plate.

Engine 642 in model 907 with transmission 722.9

AR03.30-D-8003TSV

3

Remove cap (2).

Notes on application of flange sealants to seal major assemblies

AH00.00-P-0500-01MNE

 Installation: Replace cap (2).

 Screw, balance shaft cap to rear crankcase

*BA03.20-N-1002-02A

Sealant, Loctite 5970, 50 ml

*BR00.45-Z-1013-01A

 Application gun

*112589002500

4

Remove right camshaft sprocket.

AR05.20-D-6040TSV

 Fix in place timing chain (11) at cylinder head and do not allow to fall into timing chain chamber.

5

Remove timing case cover.

AR01.40-D-8000TSV

6

Attach timing chain (12) to crankshaft (11) using a cable tie (10) and detach on cylinder head.

 Installation: Marking (arrow) of balance shaft (1) must point vertically upwards. Then mount timing chain (11) on balance shaft (1).

If camshafts and/or crankshaft (10) were turned



Check basic position of balance shaft (1).

AR03.20-D-3637TSV

7

Insert a drill bit (7) with shank at front into bore (5).

 Drill bit (7) serves as end stop for releasing and tightening bolt (4) of balance weight (6).

8

Remove bolt (4) and remove balance weight (6).

 Screw, balance weight to rear balance shaft

*BA03.20-N-1001-02A

9

Remove drill bit (7) from bore (5).

10

Remove bracket (8).

 Unscrew screw (9) to do this.

 Bolt to crankcase at front to secure balance shaft

*BA03.20-N-1003-02A

11

Remove balance shaft (1) towards front from crankcase (3).



Clean

12

Clean sealing surfaces at crankcase (3).

AR01.00-P-0050-01A

Loctite 7063 (400 ml) cleaning spray

*BR00.45-Z-1046-04A

Loctite 7200

*BR00.45-Z-1038-04A

13

Install in the reverse order.



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

14

Check for leaktightness when engine is running.

 Visual inspection only.

 Balance shaft

Number

Designation

Engine 642

BA03.20-N-1001-02A

Screw, balance weight to rear balance shaft

Stage 1

Nm

20

Stage 2

°

90

 Balance shaft

Number

Designation

Engine 642

BA03.20-N-1002-02A

Screw, balance shaft cap to rear crankcase

Nm

8

 Balance shaft

Number

Designation

Engine 642

BA03.20-N-1003-02A

Bolt to crankcase at front to secure balance shaft

Nm

9

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