Installing torsion springs
CAUTION:
Spring preload.
Injury hazard!
Injury hazard!
- The use of the specified special tool (tool) is mandatory.
- Carry out the described steps properly.
NOTE:
The description is provided only at one component. The procedure is the same for all other components.
- Position the torsion springs (3) on the special tool 2 249 160.
The lug in area (1) must be positively locked with the torsion spring panel (3) .
The guide pins (2) in the special tool 2 249 160 must be positively locked with the recesses in the torsion spring panel (3) .
- Connect individual parts of the special tool 2 249 160 (3)
to (2)
and secure with the locking pin (1)
.
The locking pin (1) should audibly engage .
- Clamp special tool 2 249 160
in a standard vice at area (2)
.
- Use the lever (1) to push special tool 2 249 160 forward to pretension the torsion springs (3) .
- The retaining pins (5) should be secured to the detent (4) on both sides.
- Do not operate the release lever (2)
.
- Feed in the special tool 2 249 160 with the torsion spring.
- Position torsion springs in the intermediate levers on the cylinder head.
The ends of the torsion springs (1) must be located in the recesses of the intermediate lever (2) .
- Tighten screw at area (1)
on the torsion spring panel.TIGHTENING TORQUES SPECIFICATION
Torsion spring on cylinder head M6x20 screw tightening torque 10 Nm - The special tool 2 249 160 (2)
must be pre-tensioned.
- Press lever (1)
on the special tool 2 249 160
in the direction of the arrow until the detents (2)
release.
- Press the lever (1) on the special tool 2 249 160 forward to keep the torsion springs (3) tensioned.
- Pull lever (2) down to release the retaining pins (5) from the anti-twist locks (4) .
- Carefully release tension on the lever (1) on the special tool 2 249 160 .
- Remove the special tool 0 495 105 (11 4 480) .
- Repeat steps for all torsion springs.
Twist camshaft if necessary.