ar0140t9202bb

Measure cylinder bores

Type ar · topic 01.40 · version 0106 · 2010-01-21

Applies to: ENGINES 457.941 in model NMB613.368 ENGINES 457.942 in MODELS NMB671.015 /020 /021 /030 /042 /332 /333 ENGINES 457.944 in MODELS NMB613.358 /367 /388

Where it sits

Function group 1 Engine › 01 Complete engine, crankcase ventilation, cylinder head, crankcase › 01.40 Crankcase, timing case cover, end cover — Series 613 (models 358, 367, 368, 388) · Series 671 (models 015, 020, 021, 030, 042, 332, 333)

EinPAS 15 Engine › 15.15 Combustion engine, complete/engine housing/crank assembly › 15.15.31 Crankcase/oil separator/ventilation — Series 613 (models 358, 367, 368, 388) · Series 671 (models 015, 020, 021, 030, 042, 332, 333)

Also applies to engines/gearboxes: 457 941, 457 942, 457 944

AR01.40-T-9202BB

Measure cylinder bores

18.12.09

ENGINES 457.941 in model NMB613.368

ENGINES 457.942 in MODELS NMB671.015 /020 /021 /030 /042 /332 /333

ENGINES 457.944 in MODELS NMB613.358 /367 /388

Measure cylinder bores

A01.40-0003-06

1 Cylinder liner

2 Dial indicator

3 Quick calipers for internal measurements

4 Micrometer

A, B Direction of measurement in crankcase

I Measuring point above top reversal point of first piston ring
(area without wear)

II Measuring point at top reversal point of first piston ring (area with maximum wear)

Removing

1

Remove cylinder head

For model 613.358/388, model 671

AR01.30-T-5800BB

in case of model 613.367

AR01.30-T-5800CB

in case of model 613.368

AR01.30-T-5800CA

2

Clean cylinder liners (1)

Checking

3

Inspect cylinder liners (1)

The cylinder liners must not have any scorch streaks. Individual slight scores are not critical.

Notes for evaluation of a cylinder barrel

AH01.40-N-0001-03A

Measure

4

Set dial indicator (2) and quick calipers for internal measurements (3) with outside micrometer (4) to cylinder liner inner

Use a pretension of 5 mm.

*BE01.40-N-1001-03G

*001589532100

Quick calipers for internal measurements

Outside micrometer

5

Measure cylinder liner inner in the area above the top reversal point of the first piston ring (I) and set scale of dial gage to "0"

Area free of wear. Carry out measurement in direction of travel (A) and in transverse direction (B).

*BE01.40-N-1001-03G

Permissible out-of-roundness of cylinder liner

*BE01.40-N-1003-03G

*001589532100

Quick calipers for internal measurements

If permissible values are not maintained:

replace cylinder liner

AR01.40-T-9324BB

6

Measure cylinder liner inner in the area of the top reversal point of the first piston ring (II)

Area with maximum wear.

Carry out measurement in direction of travel (A) and in transverse direction (B).

*BE01.40-N-1002-03G

Permissible out-of-roundness of cylinder liner

*BE01.40-N-1003-03G

*001589532100

Quick calipers for internal measurements

If permissible values are not maintained:

replace cylinder liner

AR01.40-T-9324BB

Install

7

Install cylinder head

For model 613.358/388, model 671

AR01.30-T-5800BB

in case of model 613.367

AR01.30-T-5800CB

in case of model 613.368

AR01.30-T-5800CA

Check values for cylinder liner

Number

Designation

Engine
457.941/942

Engine
457.944

BE01.40-N-1001-03G

Cylinder liner inside dia.

Code letter A

mm

127.990...127.995

127.990...127.995

Code letter B

mm

127.995...128.005

127.995...128.005

Code letter C

mm

128.005...128.010

128.005...128.010

BE01.40-N-1002-03G

Wear of cylinder liner

Top reversal point of first piston ring

mm

0.08

0.08

BE01.40-N-1003-03G

Out-of-roundness of cylinder liner

mm

0 012

0 012

Measure cylinder bores

Dial indicator

001 589 53 21 00

Referenced documents