11 34 715 Replace all valve springs (M57T2- SCR)
Necessary preliminary work:
- Remove CYLINDER HEAD .
- Disassemble CYLINDER HEAD
- Place cylinder head on special tool 11 9 001.
Position special tool 11 9 008 with straight surface on combustion chamber side of cylinder head (see illustration).
NOTE:
Procedure for all 4, 6 and 8-cylinder diesel engines.
Insert special tool 11 9 006 and lock with special tool 11 9 005 in direction of arrow.
Lock special tool 11 9 005 in direction of arrow.
Rotate cylinder head, using special tool 11 9 000, 180° into installation position.
Align special tool 11 9 009 in direction of valve axis. Select corresponding groove in special tool 11 9 015.
Press down valve spring on upper spring cup with special tool 11 9 009.
Hook in with special tool 11 9 011.
Remove valve keys.
Remove valve spring and spring cup.
Installation sequence:
- Valve
- Valve stem seal
- Valve spring
- Top spring cup
- Valve keys
If necessary, replace VALVE STEM SEALS .
Assemble engine.