Remove cylinder liner, install, seal

AR01.40-T-9324BB

Remove cylinder liner, install, seal

17.7.01



Remove

1

Remove pistons

On model 613.358/388, model 671

AR03.10-T-7021BB

On model 613.367/368

AR03.10-T-7021CB

2

Mark the installation position of the cylinder liner (2) relative to the crankcase (1) (arrow)s

3

Remove cylinder liner (2)

4

Take off sealing ring (3).

5

Remove O-rings (4, 5) from the crankcase (1)

6

Clean cylinder liner (2) and its seat in the crankcase (1)

 In particular the collar of the cylinder liner and the seat of the
O-rings (4, 5) and of the sealing ring (3).



Inspect

7

Inspect outside of cylinder liner (2) for cavitation erosion and corrosion

 Cavitation erosion: Hole pattern through explosive vapor lock formation.

8

Inspect collar of cylinder liner (2)

If the permissible values are not maintained:

Replace cylinder liner.

 Collar of cylinder liner must not be re-worked.

Collar height of cylinder liner

*BE01.40-N-1004-03G

Maximum variation of collar height

*BE01.40-N-1005-03G

9

Inspect step of cylinder bore in crankcase (1)

Depth of groove of cylinder bore (b)

*BE01.40-N-1002-02I

Maximum variation of depth of groove

*BE01.40-N-1003-02I



Install

10

Insert new O-rings (4, 5) into crankcase (1)

 Grease O-rings before installing.

*BR00.45-Z-1014-06A

11

Insert new sealing ring (3)

 The sealing ring and the step in the crankcase (1) must be clean and dry.

*BE01.40-N-1006-03G

12

Press in cylinder liner (2)

 If the previous cylinder liner is reused, it must be installed turned by 90°.

 Grease cylinder liner in the area of the O-rings.

*BR00.45-Z-1014-06A

13

Measure projection of cylinder liner (c)

AR01.40-T-9314BB

14

Measure inner  of cylinder liner in area of O-rings (4, 5)

Perform three measurements, each offset 60°.

*BE01.40-N-1007-03G



*001589532100



*WH58.30-Z-1001-12A

If the permissible values are not maintained:

- Remove cylinder liner (2).

- Inspect O-rings (4, 5) and grooves for
O-rings in crankcase (1) for soiling.

- If O-rings (4, 5) are damaged, install new ones.

15

Install pistons

On model 613.358/388, model 671

AR03.10-T-7021BB

On model 613.367/368

AR03.10-T-7021CB

Number

Designation

Engine 457.9

BE01.40-N-1002-02I

Groove depth of cylinder bore

mm

9.955...10.005

BE01.40-N-1003-02I

Variation of groove depth

mm

0,03

Number

Designation

Engine
457.941/942

Engine
457.944

BE01.40-N-1004-03G

Collar height of cylinder liner

mm

10.10...10.12

10.10...10.12

BE01.40-N-1005-03G

Variation of collar height

mm

0.02

0.02

BE01.40-N-1006-03G

Thickness of sealing ring (metal)

mm

0.14...0.16

0.14...0.16

BE01.40-N-1007-03G

Out-of-roundness of cylinder liner in area of O-rings

mm

0.02

0.02

Number

Designation

WH58.30-Z-1001-12A

Quick calipers for internal measurements

Number

Designation

Order number

BR00.45-Z-1014-06A

ATE grease

-