Measure cylinder bores

AR01.40-B-9202TC

Measure cylinder bores

12.02.16



Remove

1

Remove head of the cylinder that will be worked on

AR01.30-B-5800TC

2

Remove engine turning device

AR03.30-B-1600-03A



*BA01.60-B-1003-01A



*904589046300

3

Place in BDC the piston in the cylinder liner (4) that will be tested

4

Completely clean the cylinder liner (4)

 Cover piston bottom.

5

Clean separating ring (5) at cylinder liner (4)

 Only in vehicles with Code (MS4) BlueTec 4 or with Code (MS5) BlueTec 5

6

Evaluate cylinder liner honing (4)

 If honing cannot be evaluated visually:



Determine wear out and measure cylinder diameter



Indications to evaluate the cylinder surface

AH01.40-B-0001-03A



Measure

7

Adjust dial indicator (1) and the internal probe (2) with micrometer (3) to the smaller internal diameter of the of the tolerance group read at the cylinder liner (4), and adjust the dial indicator (1) to "0"

 make the reading of the identification letters, A, B or C, at the edge of the cylinder liner (4).

Adjust dial indicator (1) with a pre-load of 5 mm.

*BE01.40-B-1001-03D



*001589532100

8.1

Make the measurement of the internal diameter and the internal diameter difference of the cylinder liner (4) at the upper inversion point of the first piston ring (arrow)

Vehicles without Code (MS4) BlueTec 4 or with code (MS5) BlueTec 5

 Make the reading in both measurement directions (A and B).

*BE01.40-B-1001-03D

The values must be maintained, the cylinder liner (4) cannot be machined, if necessary:



*BE01.40-B-1002-03D

Replace the cylinder liner (4).

AR01.40-B-9324TC

8.2

Make the measurement of the internal diameter and the internal diameter difference of the cylinder liner (4) below the recess (arrow) of the separating ring (5)

Vehicles with Code (MS4) BlueTec 4 or with Code (MS5) BlueTec 5

 Make the reading in both measurement directions (A and B).

*BE01.40-B-1001-03D

The values must be maintained, the cylinder liner (4) cannot be machined, if necessary:



*BE01.40-B-1002-03D

Replace the cylinder liner (4).

AR01.40-B-9324TC



Install

9

Remove engine turning device

 The engine turning device must be removed before engine is started.

AR03.30-B-1600-03A



*BA01.60-B-1002-01A



*904589046300

10

Install head

AR01.30-B-5800TC

Número

Denominação

Engine 457.9; 460.984

BE01.40-B-1001-03D

Cylinder liner internal diameter

Letter A

mm

127.990...127.995

Letter B

mm

127.995...128.005

Letter C

mm

128.005...128.010

BE01.40-B-1002-03D

Maximum permissible wear in the slipping surface of the cylinder liner

On the upper inversion point of the 1st piston ring

mm

0.08

Número

Denominação

Engine 457.9

BA01.60-B-1002-01A

Inspection window closing cover to timing case

Nm

25

BA01.60-B-1003-01A

Rotary device bolt on the timing case

Nm

25