Mercedes-Benz ML320. Manual - part 429

 

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Mercedes-Benz ML320. Manual - part 429

 

 

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

Fig. 121: Identifying Basic Bore Of Valve Seat Ring (Intake) And Basic Bore Of Valve Seat Ring 
(Exhaust) 

Modification notes 

25.2.04

Value changed from 
0.084...0.110 mm to 
0.074...0.1 mm

Figure in BE05.30-P-1004-03C for 
engine 112.910/911 modified

*BE05.30-P-1004-
03C

25.2.04

Value changed from 
0.084...0.110 mm to 
0.074...0.1 mm

Figure revised in BE05.30-P-1004-03C 
in case of engine 
112.912/914/915/920/921/922/923/940/ 
941/942/943/944/945/946/947/948/960/ 
961, 113.940/941/942/943/944

*BE05.30-P-1004-
03C

25.2.04

Value changed from 
0.084...0.110 mm to 
0.074...0.1 mm

Figure revised in BE05.30-P-1004-03C 
in case of engine 
113.960/961/962/963/965/967/968/ 
980/981/982/984/987/988/990/991 /992

*BE05.30-P-1004-
03C

 

 

Remove/install

 

 

1

Remove valves

 

AR05.30-P-3511AV

2

Inspect valve guide inner 
diameter for wear

 If the measurements 

obtained for the valve 
guide are not within the 
specified tolerance ?

AR05.30-P-3731-06AV

 

2004 Mercedes-Benz ML350 

1998-2005 ENGINE Engine timing - 163 Chassis

  

me 

 

Test values for valve seat rings 

Replace valve guide.

AR05.30-P-3731AV

3

Turn valve seat ring out of 
the cylinder head with 
ring seat turning tool

 Pay attention to 

operating instructions of 
ring seat turning tool.

 

 

*WE58.40-Z-1009-21A

 

*WE58.40-Z-1010-21A

4

Measure diameter of valve 
seat ring basic bore (D1, 
D2) in the cylinder head

 Overlap between valve 

seat ring and basic bore 
must be assured.

*BE05.30-P-1006-03C
*BE05.30-P-1007-03C 
*BE05.30-P-1004-03C

If the measurements 
obtained deviate from the 
test 
values: ? machine basic 
bores to the next oversize 
of the valve seat rings 
Pay attention to inspection 
and machining 
dimensions of the valve 
seat rings and of the basic 
bore ?

 

Inspection and machining 
dimensions of valve seat 
rings

AR05.30-P-3831-03AV

 

Risk of injury to skin and 
eyes caused by handling 
hot or glowing objects.

Wear safety gloves, 
protective clothing and 
safety glasses, if 
necessary.

AS00.00-Z-0002-01A 

5

Heat cylinder head in 
recirculated heating 
cabinet or heating oven

 Temperature approx. 

80 °C

 

 

*WH58.30-Z-1001-28A

 

*WH58.30-Z-1003-28A

8

Drive in valve seat ring 
using a suitable drift

 

 

9

Machine valve seat rings

 After installing a new 

valve seat ring, the valve 
must always be replaced.

AR05.30-P-4511AV

10

Install in the reverse order  

 

Number

Designation

Engine 112.910/ 
911

Engine 112.912/
914/915/920/ 
921/922/923/ 
940/941/942/ 
943/944/945/ 

 

2004 Mercedes-Benz ML350 

1998-2005 ENGINE Engine timing - 163 Chassis

  

me 

 

Test values for valve seat rings 

Commercially available tools 

Workshop equipment 

946/947/948/ 
951/960/961, 
113.940/941/94 
2/943/944

BE05.30-P-
1004-03C

Valve seat ring - 
overlap in 
cylinder head

Intake

mm

0.084...0.115

0.084...0.115

Exhaust

mm

0.074...0.100

0.074...0.100

BE05.30-P-
1006-03C

Basic bore 
diameter of inlet 
valve seat rings 
in cylinder head

Standard

mm

31.000...31.016

37.000...37.016

Rep. size 1

mm

32.000...32.016

38.200...38.216

BE05.30-P-
1007-03C

Basic bore 
diameter of 
exhaust valve 
seat rings in 
cylinder head

Standard

mm

35.000... 35.016

42.000... 42.016

Rep. size 1

mm

36.200...36.216

43.200...43.216

Number

Designation

Engine 
113.960/ 
961/962/963/ 
964/965/967/ 
968/971/980/ 
981/982/984/ 
987/988/990/ 
991/992/993/ 
995

BE05.30-P-1004-
03C

Valve seat ring - overlap in cylinder head

Intake

mm 0.084...0.115

Exhaust

mm 0.074...0.100

BE05.30-P-1006-
03C

Basic bore diameter of inlet valve seat rings in 
cylinder head

Standard mm 39.000...39.016
Rep. size 
1

mm 40.200...40.216

BE05.30-P-1007-
03C

Basic bore diameter of exhaust valve seat rings in 
cylinder head

Standard mm 44.000...44.016
Rep. size 
1

mm 45.200...45.216

Number

Designation

WH58.30-Z-1001-28A

Recirculated air warming cabinet

WH58.30-Z-1003-28A

Heating oven

WE58.40-Z-1009-21A

Valve seat turning device

WE58.40-Z-1010-21A

Valve seat turning device

 

2004 Mercedes-Benz ML350 

1998-2005 ENGINE Engine timing - 163 Chassis

  

me 

 

MEASURE VALVE SETBACK TO CYLINDER HEAD - AR05.30-P-4100-01AV

Modification notes 

Test and adjustment values of cylinder head 

Test and adjustment values of cylinder head 

Workshop equipment 

Shown on engine 606  

1. Measure valve setback (a) with depth caliper gage. 

25.3.04

Value changed from 8.50...8.90 
mm to 8.05...8.45 mm

Value in series 1001, exhaust valve, for engine 
113.962/982/987/990/991/993 changed

 

25.3.04

Value changed from 7.90...8.30 
mm to 7.20...7.60 mm

Value in series 1001, intake valve, for engine 
113.962/982/987/990/991/993 changed

 

Number

Designation

Engines 112, 
113.940/941/ 
942/943/944/ 
945/946/948 
except 112.976

Engine 112.976

BE01.30-P-
1001-02D

Valve setback of 
new valves and 
new valve seat 
rings

Exhaust valve

mm

8.05...8.45

8.50...8.90

Intake valve

mm

7.60...8.00

7.90...8.30

Number

Designation

Engine 
113.960/961/ 
963/965/966/ 
967/968/980/ 
981/984/986/ 
992/995

Engine 113.987/
988/989/ 
990/991/ 
993

BE01.30-P-
1001-02D

Valve setback of 
new valves and 
new valve seat 
rings

Exhaust valve

mm

8.5...8.9

8.05...8.45

Intake valve

mm

7.90...8.30

7.20...7.60

WE58.40-Z-1002-19A

Depth gage

 

2004 Mercedes-Benz ML350 

1998-2005 ENGINE Engine timing - 163 Chassis

  

me 

 

 

 

 

 

 

 

 

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