Determine crankshaft bearing axial play

AR03.20-S-4291-03PD

Determine crankshaft bearing axial play

 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

 Caution

Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil

Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.

AS18.00-Z-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

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

AH00.00-P-0020-01A

Engine

699 in model 470, 471

Modification notes

14.11.2019

Crankshaft bearing clearance

Engine 699 in model 470, 471

BE03.20-N-1001-04PD

28.11.2019

Work procedure updated

Whole document.

Test specifications for crankshaft bearing clearance

Number

Designation

Engine 699 in model 470, 471

BE03.20-N-1001-04PD

Crankshaft bearing clearance

Axial

mm

0,05...0,70

Radial

Bearing journals 1, 2, 4, 5

mm

0,034...0,061

Bearing journal 3

mm

0,042...0,059

Check values of crankshaft

Number

Designation

Engine 699 in model 470, 471

BE03.20-N-1003-02PD

Shim thickness

mm

2,20...2,50

 Crankshaft

Number

Designation

Engine 699 in model 470, 471

BA03.20-N-1001-01PD

Bolt, bearing cap to crankcase

Stage 1

Nm

20

Stage 2

°

70

Repair materials

Number

Designation

Order number

BR00.45-Z-1028-04A

Assembly cleaner

A 000 986 56 01

1

Determine thickness of shims (14). 

 Commercially available devices/tools
Outside micrometer

2

Thoroughly clean crankshaft bearing shells (11, 12) as well as bearing areas in crankcase and in crankshaft bearing caps.

3

Insert shims (14) into crankcase at 3rd crankshaft main bearing. 

 Do not oil shims (14).
Measurement result will otherwise be distorted.

 Oil grooves (arrows) face outwards in this connection.

4

Insert crankshaft bearing shells (11) into crankcase.

 Do not oil crankshaft bearing shells (11).
Measurement result will otherwise be distorted.

 Take into account assignment of crankshaft bearing shells (11).

5

Insert crankshaft (15) into crankcase.

 Do not oil crankshaft (15).
Measurement result will otherwise be distorted.

6

Insert crankshaft bearing shells (12) into crankshaft bearing caps.

 Do not oil crankshaft bearing shells (12).
Measurement result will otherwise be distorted.

 Take into account assignment of crankshaft bearing shells (12).

7

Install crankshaft bearing caps.

 Note assignment of crankshaft bearing caps.

8

Tighten bolts (1 to 10) of crankshaft bearing caps as per tightening procedure in numerical order to torque of stage 1   .

 Commercially available devices/tools
Electronic torque wrench / angle tightener

9

Tighten bolts (1 to 10) of crankshaft bearing caps as per tightening procedure in numerical order to tightening angle of stage 2   .

 Commercially available devices/tools
Electronic torque wrench / angle tightener

10

Mount  dial indicator holder (02) on crankcase.

11

 Insert dial indicator (01) in  dial indicator holder (02) and set a preload of at least 3 mm.

  The measuring tip of the dial indicator (01) must be aligned in a right angle to the crankshaft flange.

12

Press on crankshaft (15) in axial direction on one side up to end stop and hold.

13

Set scale on  dial indicator (01) to zero.

14

Press on crankshaft (15) opposite to axial direction on other side up to end stop and hold.

15

Read off measurement value on  dial indicator (01) and compare with specified value. 

 Read off measurement value corresponds to crankshaft end play (15).

If measurement value lies outside the tolerance,



specify appropriate repair measures.

16

 Remove dial indicator (01) and  dial indicator holder (02) from the crankcase.

17

Remove crankshaft bearing caps.

 For this purpose, remove bolts (1 to 10).

18

Remove crankshaft (15) from crankcase.