Remove/install crankshaft

AR03.20-T-4351B

Remove/install crankshaft

28.6.00



Remove

1

Remove engine

With model 613.355/ 455/ 485

AR01.10-T-2401B

Model 613.364/ 365

AR01.10-T-2401C

2

Remove timing case

AR01.40-T-8002B

3

Remove front housing cover

AR01.40-T-8800B

4

Remove pistons

AR03.10-T-7021B

5

Remove crankshaft bearing cap (1)

AR03.20-T-4351-04B

6

Screw guide drift in at crankshaft ends



*403589026300

7

Attach crankshaft to a hemp rope and lift out of the crankcase with a crane

8

Take bearing shells (3) out of the crankcase

 Mark installation position of the bearing shells relative to crankcase.



Clean

9

Thoroughly clean crankshaft, crankshaft bearings and bearing seats with a chamois leather

10

Blow out oil passages of the crankcase (from oil pump side) and of crankshaft with compressed air



Check

11

Check the crankcase for damage and corrosion

 Carefully clean contact surface.

12

Check crankshaft (2)

AR03.20-T-4463B

13.1

Install crankshaft bearings, gage

 Only when parts are machined or exchanged.

AR03.20-T-4341-01B

*BE03.20-N-1001-01D



*BA01.40-N-1002-01K



*BA01.40-N-1003-01K



*001589532100



*WH58.30-Z-1001-12A



*WH58.30-Z-1002-12A

14.1

Determine crankshaft bearing radial play

 Only when parts are machined or exchanged.

 The reading from stage 13.1 is required for the purpose of determining.

AR03.20-T-4291-02B

*BE03.20-N-1001-02I

*BE03.20-N-1003-02I



*WH58.30-Z-1002-12A



Install

15

Insert bearing shells (3) into crankcase

 Oil bearing surface.

Assign crankshaft bearing shells

AR03.20-T-4360-01A

16

Insert bearing shells (4) into the crankshaft bearing caps (1)

 Oil bearing surface.

Assign crankshaft bearing shells

AR03.20-T-4360-01A

17

Screw guide drift in at crankshaft ends



*403589026300

18

Attach crankshaft to a hemp rope and lift into the crankcase with a crane

 The tooth of the crankshaft sprocket

(5) marked with '1' must be positioned between the teeth of the camshaft sprocket (6) likewise marked with '1'.

19

Install crankshaft bearing cap (1)

AR03.20-T-4351-04B



*000589620901

*BE03.20-N-1001-01D



*BA01.40-N-1002-01K



*BA01.40-N-1003-01K

20

Inspect ease of running of crankshaft by rotating by hand

 If stiff, slacken the bolts of the crankshaft bearing caps one after the other and pinpoint which crankshaft bearing is stiff.

21

Determine crankshaft axial play

AR03.20-T-4341-02B



*001589532100



*363589022100

 If the reading for the axial play is not within the specifications:

Inspect bearing shell of fit bearing and replace, if necessary.

*BE03.20-N-1010-02I

22

Installing pistons

AR03.10-T-7021B

23

Install front housing cover

AR01.40-T-8800B

24

Install timing case

AR01.40-T-8002B

25

Install engine

With model 613.355/ 455/ 485

AR01.10-T-2401B

Model 613.364/ 365

AR01.10-T-2401C

Number

Designation

Engine 402.970

Engine 441.980

Engine 446.938

BE03.20-N-1001-01D

Length of shank of bolt

Crankshaft bearing cap to crankshaft mounting

mm

156

156

156

Crankshaft bearing cap on side to crankcase

mm

-

86,3

86,3

Number

Designation

Engine 402.970

Engine 441.980

Engine 446.938

BE03.20-N-1001-02I

Diameter of crankshaft bearing
journal

Normal

mm

103,98...104,00

103,98...104,00

103,98...104,00

Standard I

mm

103,88...103,90

103,88...103,90

103,88...103,90

Repair size I

mm

103,73...103,75

103,73...103,75

103,73...103,75

Repair size II

mm

103,48...103,50

103,48...103,50

103,48...103,50

Repair size III

mm

102,98...103,00

103,23...103,25

103,23...103,25

.Repair size IV

mm

-

102,98...103,00

102,98...103,00

BE03.20-N-1003-02I

Radial play

All bearings

mm

0,066...0,132

-

-

Main bearing

mm

-

0,080...0,146

0,080...0,146

Fit bearing

mm

-

0,087...0,153

0,087...0,153

BE03.20-N-1010-02I

Axial play of crankshaft

mm

0,150...0,322

0,150...0,322

0,150...0,322

Number

Designation

Engine 402.970

Engine 441.980

Engine 446.938

BA01.40-N-1002-01K

Screw for crankshaft bearing cap on crankcase

1st stage

NM

100

100

100

2nd stage

NM

200

200

200

Step 3

NM

315

315

315

4th stage

°

95

95

95

BA01.40-N-1003-01K

Side crankshaft bearing cap bolt to crankcase

1st stage

NM

80

95

95

2nd stage

°

-

95

95

Number

Designation

WH58.30-Z-1001-12A

Quick calipers for internal measurements

WH58.30-Z-1002-12A

Micrometer