Grind valves

AR05.30-G-4202MT

Grind valves

11.11.11

Grinding

1

Clean valve (1) and remove adhering oil carbon if necessary

2

Clamp valve (1) in place

 The valve (1) must be clamped in valve grinding machine (2) as close as possible behind valve disk in order to avoid disturbing vibrations.

Valve grinding machine

3

Set the grinding angle on valve grinding machine (2)

 The grinding angle must be according to the valve seat angle (A).

*BE05.30-N-1003-01O

4

Slowly move valve (1) with feed toward rotating grinding wheel until it comes into contact with seat surface of valve (1)

5

Continue grinding at a low operating speed until entire valve seat is smooth and free of chatter marks

 The check values must be reached.

Outside micrometer set and vernier caliper

*BE05.30-N-1004-01O

*BE05.30-N-1005-01O

*BE05.30-N-1007-01O

*BE05.30-N-1009-01O

*BE05.30-N-1010-01O



*001589532100



*363589022100

6

Remove valve (1) from valve grinding machine (2)

7

Position valve (1) on valve grinder (2) and resurface valve stem end

 The test value for the valve length (C) must be reached.

*BE05.30-N-1006-01O

Outside micrometers set, see

Number

Designation

Engine
447.903

BE05.30-N-1003-01O

Valve seat angle "A"

Inlet

°

30

Outlet

°

45

See picture

AR05.30-G-4202-01MT

BE05.30-N-1004-01O

Valve disk dia. "B"

Inlet

mm

58.8 to 59.0

Outlet

mm

50.9 to 51.1

See picture

-

BE05.30-N-1005-01O

Valve seat width at valve disk "F"

New

Inlet

mm

4.5 to 5.5

Outlet

mm

4.5 to 5.5

Machining limit

Inlet

mm

6.50

Outlet

mm

6.50

See picture

AR05.30-G-4202-01MT

BE05.30-N-1006-01O

Valve length "C"

Inlet

mm

142.3...142.7

Outlet

mm

142.3...142.7

See picture

AR05.30-G-4202-01MT

BE05.30-N-1007-01O

Valve stem dia. "E"

Inlet

mm

11.932 to 11.950

Outlet

mm

11.922 to 11.940

See picture

AR05.30-G-4202-01MT

BE05.30-N-1009-01O

Intake valve seat face machining dimension "H" relative to valve seat face diameter "G"

Dim. "G"

mm

54.99 to 55.01

New

Dim. "H"

mm

3.6 to 3.8

Machining limit

Dim. "H"

mm

3.3

See picture

AR05.30-G-4202-01MT

BE05.30-N-1010-01O

Exhaust valve seat face machining dimension "H" relative to valve seat face diameter "G"

Dim. "G"

mm

47.99 to 48.01

New

Dim. "H"

mm

3.0 to 3.2

Machining limit

Dim. "H"

mm

2.7

See picture

AR05.30-G-4202-01MT

Number

Designation

Engine
444.901

BE05.30-N-1003-01O

Valve seat angle "A"

Inlet

°

30

Outlet

°

45

See picture

AR05.30-G-4202-01MT

BE05.30-N-1004-01O

Valve disk dia. "B"

Inlet

mm

58.8 to 59.0

Outlet

mm

50.9 to 51.1

See picture

-

BE05.30-N-1005-01O

Valve seat width at valve disk "F"

New

Inlet

mm

4.5 to 5.5

Outlet

mm

4.5 to 5.5

Machining limit

Inlet

mm

6.50

Outlet

mm

6.50

See picture

AR05.30-G-4202-01MT

BE05.30-N-1006-01O

Valve length "C"

Inlet

mm

142.3...142.7

Outlet

mm

142.3...142.7

See picture

AR05.30-G-4202-01MT

BE05.30-N-1007-01O

Valve stem dia. "E"

Inlet

mm

11.932 to 11.950

Outlet

mm

11.922 to 11.940

See picture

AR05.30-G-4202-01MT

BE05.30-N-1009-01O

Intake valve seat face machining dimension "H" relative to valve seat face diameter "G"

Dim. "G"

mm

54.99 to 55.01

New

Dim. "H"

mm

3.6 to 3.8

Machining limit

Dim. "H"

mm

3.3

See picture

AR05.30-G-4202-01MT

BE05.30-N-1010-01O

Exhaust valve seat face machining dimension "H" relative to valve seat face diameter "G"

Dim. "G"

mm

47.99 to 48.01

New

Dim. "H"

mm

3.0 to 3.2

Machining limit

Dim. "H"

mm

2.7

See picture

AR05.30-G-4202-01MT