Remove/install crankshaft

AR03.20-P-4351B

Remove/install crankshaft

23.01.2019

Engine

604, 605, 606

Shown on engine 604

2

Bearing cap

2a

Fitted bearing cap

3

Bearing cap screws

20

Crankshaft

21

Bearing shells in bearing cap (without oil hole)

22

Thrust plates (axial bearing) in bearing cap (with retaining lug)

23

Thrust plates (axial bearing) in cylinder crankcase of engine 604 3. Main bearing = thrust bearing in engine 605 4. Main bearing = thrust bearing in engine 606 5. Main bearing = thrust bearing

24

Bearing shells in cylinder crankcase (with oil hole)

 

Remove/install

1

Remove engine

Engines 604, 605 in model 202

AR01.10-P-2400HA

Engines 605, 606 in model 124, engine 124M606.961 in model 140

AR01.10-P-2400HB

Engine 606 in model 463

AR01.10-P-2400GG

2

Remove cylinder head

Models 124, 140, 202, 210

AR01.30-P-5800HA

Model 463

AR01.30-P-5800GG

3

Remove timing case cover

Models 124, 140, 202, 210

AR01.40-P-8000HA

Model 463

AR01.40-P-8000GG

4

Remove end cover

AR01.40-P-8913HA

5

Remove pistons

AR03.10-P-7021B

6

Unscrew crankshaft bearing caps (2, 2a)

Check crankshaft bearing cap bolts

AR03.20-P-4351-03A

Interference fit of crankshaft bearing cap

Motor 604, 605, 606

AH03.20-P-4351-02VA

 Installation:
Lubricate screws of crankshaft bearing caps on thread and bolt head contact surface and tighten from the inside out, starting at the thrust bearing.
Turn crankshaft and check for ease of movement.

 The crankshaft bearing caps (2, 2a) are numbered consecutively, starting with the first crankshaft bearing cap at the front
Pay attention to fit 

Crankshaft bearing cap bolts

*BE03.20-P-1001-01A

 Bolt for crankshaft bearing cap

*BA03.20-P-1001-01A

Fit of crankshaft bearing cap



Check screws/bolts for crankshaft bearing cap

7

Remove crankshaft (20) from cylinder crankcase

 Installation:
Lubricate bearing shells before inserting them into crankshaft.
The oil grooves in the thrust plates (22) and (23) must point toward the thrust collars of the crankshaft.
The thrust plates (22) in the bearing cap each have two retaining lugs as an anti-twist lock

8

Install in the reverse order

Check values for crankshaft bearing cap bolts

Number

Designation

Engine 604, 605, 606

BE03.20-P-1001-01A

Crankshaft bearing cap bolts

Thread diameter

M

11

Length (L) when new

mm

61,8...62,2

Max. length (L)

mm

63,8

For picture, see

AR03.20-P-4351-03A

 Crankshaft

Number

Designation

Engine 604, 605, 606

BA03.20-P-1001-01A

Bolt for crankshaft bearing cap

M11

Stage 1

Nm

55

Stage 2

°

90