Camshaft: Adjustments

Adjusting Basic Position of Camshafts

Shown On Engine 112:

Remove
1 Remove camshaft bearing bridge

NOTE: Pay attention to slackening diagram.

DANGER:
- Risk of injury to skin and eyes from handling hot or glowing objects.
- Wear protective gloves, protective clothing and if necessary protective glasses.

2 Remove rocker arm spindle (3)

NOTE: If the rocker arm spindle (3) is not able to move easily in its bearings (damps), the camshaft bearing bridge must be heated.

3 Remove rocker arm (2)

NOTE: Pull out extraction drift diameter 15 mm.

Install
4 Check bearing surfaces of rocker arms for damage

NOTE: Pay attention to any longitudinal score marks owing to the expulsion of the rocker arm spindles (3).

- If damage is present, Replace rocker arms (2).

5 Insert guide shaft into camshaft bearing bridge.

NOTE: At the same time preassemble the rocker arms (2) on the guide shaft.

DANGER:
- Risk of injury to skin and eyes from handling hot or glowing objects.
- Wear protective gloves, protective clothing and if necessary protective glasses.

6 Install rocker arm shaft (3)
- If the rocker arm spindle (3) cannot be easily inserted in its bearings (clamps), the camshaft bearing bridge must be heated.
- Heat the camshaft bearing bridge and remove the guide shaft with the rocker arm spindle (3).

NOTE: Ensure that the rocker arms (2) do not get jammed.

7 Install camshaft bearing bridge

NOTE: Pay attention to tightening diagram.