Mercedes-Benz ML320. Manual — part 427

Test and adjustment values for valve guides

Number

Designation

Engine 112 except
112.951/976,
Engines 113.940/941/
942/943/944/
945/946/948/
960/961/962/
963/964/965/
966/967/968/
969/971/980/
981/982/984/
986/987/988/
990/991/992/
993/995

Engines 112.951/976

BE05.30-P-
1001-02D

Outside
diameter of
exhaust and
intake valve
guide

Standard
series

mm

12.540...12.551

12.540...12.551

Standard I
series
(color:
blue)

mm

12.560...12.571

12.560...12.571

Repair
stage I
(color: red)

mm

12.740...12.751

12.740...12.751

Repair
stage II
(color:
yellow)

mm

13.140...13.151

13.140...13.151

BE05.30-P-
1002-02D

Bore
diameter in
cylinder
head of
exhaust and
intake valve
guide

Standard
series

mm

12.500...12.511

12.500...12.511

Standard I
series
(color:
blue)

mm

12.520...12.531

12.520...12.531

Repair
stage I
(color: red)

mm

12.700...12.711

12.700...12.711

Repair
stage II
(color:
yellow)

mm

13.100...13.11113.100...13.1 13.100...13.11113.100...13.1

BE05.30-P-
1003-02D

Overlap in cylinder head mm

0.029...0.051

0.029...0.051

BE05.30-P-
1004-02D

Length

L

mm

50

50

BE05.30-P-
1005-02D

Dimension

A

mm

14.3 (±0.2)

14.3 (±0.2)

2004 Mercedes-Benz ML350

1998-2005 ENGINE Engine timing - 163 Chassis

me

Fig. 114: Identifying Feeler (102 589 01 23 00)

1. Clean bore of valve guide (1) (never use a hard object).

2. Inspect surface of bore for scores or signs of rubbing.

If damage to the surface is present, the valve

guide must be replaced and the valve stem inspected for uneven areas. If the stem is damaged, the valve
must be replaced together with the valve guide.

Fig. 115: Identifying Valve Guide

3. If it is possible to insert the side of the hole gauge (3)

marked with "+220" over its full length (5 mm)

into the valve guide, it is then necessary to replace the valve guide.

Inspect bore of valve guide in

longitudinal and transverse direction.

Fig. 116: Inserting Side Of Hole Gauge

CHECK, REMOVE, INSTALL VALVE GUIDES - AR05.30-P-3731AV

2004 Mercedes-Benz ML350

1998-2005 ENGINE Engine timing - 163 Chassis

me

ENGINE 112

ENGINE 112.945 in MODEL 463.209 /232 /233 /244 /245 /250

ENGINE 113.962 in MODEL 463.206 /240 /241 /247 /248 /249 /254

ENGINE 113.982 in MODEL 463.243/246

ENGINE 113 in MODEL 129, 163, 202, 203, 208, 209, 210, 211, 215, 220, 230

Fig. 117: Identifying Valve Guides

Remove/install

1

Remove valves

Engine 113 except
113.995

AR05.30-P-3511AV

Engine 113.995

AR05.30-P-3511RVK

2

Inspect valve guides (1, 2)

AR05.30-P-3731-06AV

Installation depth of valve
guide

*BE05.30-P-1005-02D

3

Knock out valve guides (1,
2)

The valve guides on

the exhaust and intake
sides are identical.

AR05.30-P-3731-01AV

Overall length of valve

*BE05.30-P-1004-02D

2004 Mercedes-Benz ML350

1998-2005 ENGINE Engine timing - 163 Chassis

me

Test and adjustment values for valve guides

guide

4

Measure valve guide
external diameter

Using an outside

micrometer, measure and
determine which valve
guide was installed. Fit
the next largest valve
guide according to the
valve guide installed.

*BE05.30-P-1001-02D

*WH58.30-Z-1002-12A

Valve guides of

standard stage and
standard stage I are not
supplied as replacement
parts; for this reason: ?

Ream basic bore to repair
stage I.

AR05.30-P-3731-04AV
*BE05.30-P-1002-02D
*BE05.30-P-1003-02D

5

Insert valve guides (1, 2),
inspect

AR05.30-P-3731-03AV

6

Install in the reverse order

Number

Designation

Engine 112 except
112.951/976,
Engines 113.940/941/
942/943/944/
945/946/948/
960/961/962/
963/964/965/
966/967/968/
969/971/980/
981/982/984/
986/987/988/
990/991/992/
993/995

Engines 112.951/976

BE05.30-P-
1001-02D

Outside
diameter of
exhaust and
intake valve
guide

Standard
series

mm

12.540...12.551

12.540...12.551

Standard I
series
(color:
blue)

mm

12.560...12.571

12.560...12.571

Repair
stage I
(color: red)

mm

12.740...12.751

12.740...12.751

2004 Mercedes-Benz ML350

1998-2005 ENGINE Engine timing - 163 Chassis

me