Remove all valve springs
Prerequisite
- Cylinder head removed
Preliminary work
- Refer to INSTALLING THE CYLINDER HEAD ON THE SPECIAL TOOL .
- Refer to CHECKING THE POSITION OF THE INTAKE CAMSHAFT (CYLINDER HEAD REMOVED) .
- Refer to REMOVING TORSION SPRINGS .
- Refer to REMOVING ALL GATES .
- Refer to REMOVING ALL INTERMEDIATE LEVERS .
- Refer to REMOVING INTAKE CAMSHAFT .
- Refer to REMOVING THE SERVOMOTOR FOR THE ECCENTRIC SHAFT (CYLINDER HEAD REMOVED) .
- Refer to REMOVING ECCENTRIC SHAFT .
- Refer to REMOVING EXHAUST CAMSHAFT .
- Refer to REMOVING ALL ROLLER CAM FOLLOWERS .
- Mount and bolt special tool 0 494 366 (11 9 001) on special tool 0 495 187 (00 2 300) .
- Mount and bolt the cylinder head to the special tool 0 494 366 (11 9 001)
.
- Prepare the special tools 0 494 371 (11 9 006)
, 0 494 372 (11 9 007)
and 0 494 373 (11 9 008)
as shown.
- Make sure that the special tools 0 494 373 (11 9 008) are positioned as shown in the next operation.
- Turn round special tool 0 494 371 (11 9 006) and insert as shown.
- Slide the special tool 0 494 370 (11 9 005)
in the direction of the arrow.
- Lock special tool 0 494 370 (11 9 005) in the direction of the arrow.
- Rotate the cylinder head with the special tool 0 494 362 (11 9 000) by 180° into the installation position.
- Align special tool 0 494 374 (11 9 009) in direction of valve axis.
CAUTION:
Component with preload.
Injury hazard!
Injury hazard!
- Reduce preload as far as possible before disassembly. Relieve component.
- Press down the valve spring on the upper spring cup with the
special tools 0 494 374 (11 9 009)
and 0 495 028 (11 9 017)
.
- Keep the valve spring pressed down with the special tool 0 495 028 (11 9 017) .
- Remove the valve shims (1) with a magnet from the valve (2).
- Carefully relieve the valve spring.
- Set the spring cup (1) and the valve spring (2) down in the special tool 0 495 105 (11 4 480) in order.