Remove/install crankshaft

AR03.20-L-4351VB

Remove/install crankshaft

23.01.2019

Engine

166.961/991 in model 414.700

1

Crankshaft

2

Main bearing shells in cylinder crankcase

3

Thrust washers (axial bearings) in crankcase

4

Main bearing shells in bearing caps

5

Thrust plates (axial bearings) in bearing caps

6

Crankshaft bearing cap

7

Screw

 

Remove/install

1

Remove engine with front axle carrier

AR01.10-L-2500VB

2

Remove engine from front axle carrier

AR01.10-L-2510VB

3

Remove timing case cover

AR01.40-L-8000VB

4

Remove crankshaft gear

AR05.10-P-4600GF

5

Remove end cover together with radial shaft sealing ring

AR01.40-L-8920VA

6

Remove pistons

AR03.10-L-7021VA

7

Remove screws (7) and remove crankshaft bearing caps (6)

Interference fit of crankshaft bearing cap

AH03.20-P-4351-02VA

 The crankshaft bearing caps (6) are numbered consecutively, starting with the first crankshaft bearing cap at the front (timing case cover).
Pay attention to fit. 

 Bolt, crankshaft bearing cap to crankcase

*BA01.40-P-1004-01D

8

Remove crankshaft (1) from cylinder crankcase

Crankshaft bearing diagram



AH03.20-P-4351-01GF

 Installation: Lubricate main bearing shells (2, 4) before inserting the crankshaft (1).
The oil grooves in the thrust plates (3, 5) must point toward the thrust collars of the crankshaft (1).
The thrust plates (5) in the crankshaft bearing caps (thrust bearings)
are equipped with a retaining lug as an anti-twist lock. 

9

Install in the reverse order

 Crankcase, timing case cover, end cover

Number

Designation

Engine 166.961/991

BA01.40-P-1004-01D

Bolt, crankshaft bearing cap to crankcase

Stage 1

Nm

40

Stage 2

°

90