ar0140b9202b

Measure cylinder bores

Type ar · topic 01.40 · version 0100 · 2016-02-12

Applies to: Cumbustion engine 372, 374, 376, 377, 386 with Vehicle 382.### #B, 382.### #D, 384.### #B, 384.### #D, 386.### #B, 386.### #D, 682.### #B, 682.### #D, 684.2## #B, 684.2## #D, 693.### #B, 693.### #D, 694.### #B, 694.### #D, 695.### #B, 695.### #D

Where it sits

Function group 1 Engine › 01 Complete engine, crankcase ventilation, cylinder head, crankcase › 01.40 Crankcase, timing case cover, end cover — Series 372 · Series 374 · Series 376 · Series 382 · Series 384 · Series 386 · Series 682 · Series 684 (models 2**) · Series 693 · Series 694 · Series 695

EinPAS 15 Engine › 15.15 Combustion engine, complete/engine housing/crank assembly › 15.15.31 Crankcase/oil separator/ventilation — Series 372 · Series 374 · Series 376 · Series 382 · Series 384 · Series 386 · Series 682 · Series 684 (models 2**) · Series 693 · Series 694 · Series 695

Also applies to engines/gearboxes: 377 ***

AR01.40-B-9202B

Measure cylinder bores

12.02.16

Cumbustion engine 372, 374, 376, 377, 386 with Vehicle 382.### #B, 382.### #D, 384.### #B, 384.### #D, 386.### #B, 386.### #D, 682.### #B, 682.### #D, 684.2## #B, 684.2## #D, 693.### #B, 693.### #D, 694.### #B, 694.### #D, 695.### #B, 695.### #D

Measure cylinder bores

B01.40-0019-06

1 Engine block

2 Dial gauge

3 Internal diameter measuring gauge

A-B Measuring direction in cylinder

I Measuring points at top reversion area of the first piston ring

II Measuring point at center of cylinder sliding surface

Check

1

Check the sliding surface of the cylinders

The sliding surfaces must not present excessive wear signs and/or deformations.

AH01.40-B-0001-01A

Measure

2

Measure the inside diameter of the cylinders

*001589532100

Gauge for inner diameters from 50 to 100 mm.

Inside diameter of cylinders.

Cylinders with liners.

*BE01.40-B-1001-03A

Cylinders without liners.

*BE01.40-B-1021-02A

Out of round and taper of cylinders.

*BE01.40-B-1007-02A

Measure wear on the sliding surface at measuring points  (I and II), in the longitudinal direction (A) and in the transversal direction (B).

*BE01.40-B-1020-02A

In case of discrepancies:

Machine the cylinders to the next repair stage, or:

AR01.40-B-9291D

Install a new cylinder liner in the damaged cylinder.

AR01.40-B-9273A

Inspection data of cylinder liner

Número

Denominação

Engine 372.9, 374.9, 376.9, 377.9, 386.9

BE01.40-B-1001-03A

Liner internal diameter - Final finishing

Normal

Letter A

mm

97.485...97.491

Letter B

mm

97.492...97.508

Letter C

mm

97.509...97.515

Inspection data of crankcase

Número

Denominação

Engine 374.9

Engine 372.9, 376.9, 377.9, 386.9

BE01.40-B-1007-02A

Cylinders out of round and taper

Final workmanship

mm

0,007

0,007

Used cylinders limit

mm

0,01

0,01

BE01.40-B-1020-02A

Maximum admissible wear on the cylinders sliding surface

At the first piston ring reversing point

mm

0,14

0,14

In the cylinder center

mm

0,05

0,05

BE01.40-B-1021-02A

Cylinders diameters, final workmanship

Standard

Letter A

mm

97,485...97,491

97,485...97,491

Letter B

mm

97,492...97,508

97,492...97,508

Letter C

mm

97,509...97,515

97,509...97,515

Repair stage I

Letter A

mm

97,985...97,991

97,985...97,991

Letter B

mm

97,992...98,008

97,992...98,008

Letter C

mm

98,009...98,015

98,009...98,015

Measure cylinder bores

001 589 53 21 00

Dial indicator

Referenced documents