Remove/install a flywheel

AR03.30-D-8002TSM

Remove/install a flywheel

19.05.2020

Engine

654.9 in model 907.1/2/6

1

Screw

2

Screw

3

Screw

4

Screw

5

Screw

6

Screw

7

Screw

8

Screw

9

Flywheel

10

Position sensor of crankshaft

 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

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A



Remove

1

Remove clutch.

Engine 654.9 in model 907.1/2/6 with transmission 711.6

AR25.10-D-0050TS

2

Remove position sensor of the crankshaft (10).

AR07.04-D-0059TSM

3

Loosen screws (1 to 8) in numerical sequence, remove, and remove flywheel (9).


Do not use an impact wrench/driver or similar compressed air tools to loosen the screws (1 to 8).
Otherwise, the thread in the crankshaft flange will be damaged.

 Counterhold crankshaft at front on belt pulley/vibration damper.
Helper required.

 Engine 654.9 in model 907.6
with code HK4 (Rear air conditioning, reinforced)
Counterholder

*654589034000

 Counterholder

*654589004000



Check

4

Check flywheel (9) and starter ring gear for wear and damage.

If there is a problem,



replace flywheel (9).

5

Check the rear radial shaft sealing ring for leak tightness.

If there is a problem,



Replace rear radial shaft sealing ring.

AR03.20-D-3003TSM



Install

6

Position flywheel (9) on the crankshaft flange.

 Pay attention to the guide pin in the crankshaft flange.

7

Tighten screws (1 to 8) slightly by hand and tighten in numerical sequence.

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A


Do not use any impact wrenches/drivers or similar compressed air tools to screw in the screws (1 to 8).
Otherwise, the thread in the crankshaft flange will be damaged.

 Counterhold crankshaft on belt pulley/vibration damper.
Helper required.

 Bolt, two-mass flywheel to crankshaft

*BA03.30-N-1004-01TSM

 Bolt, flywheel to crankshaft

*BA03.30-N-1003-01TSM

 Engine 654.9 in model 907.6
with code HK4 (Rear air conditioning, reinforced)
Counterholder

*654589034000

 Counterholder

*654589004000

8

Install position sensor of the crankshaft (10).

AR07.04-D-0059TSM

9

Install clutch.

Engine 654.9 in model 907.1/2/6 with transmission 711.6

AR25.10-D-0050TS

 Flywheel, drive plate, vibration damper, starter ring gear

Number

Designation

Engine 654.9 in model 907

BA03.30-N-1003-01TSM

Bolt, flywheel to crankshaft

Stage 1

Nm

45

Stage 2

°

90

 Flywheel, drive plate, vibration damper, starter ring gear

Number

Designation

Engine 654.9 in model 907

BA03.30-N-1004-01TSM

Bolt, two-mass flywheel to crankshaft

Stage 1

Nm

45

Stage 2

°

90