Operating instructions

  10 Valve Gear

Valve-bridge balance adjustment

1. Hold valve bridge (1) firmly in position with

open-end spanner and release locknut (2).

2. Use feeler gauge to determine the distance

between valve bridge and rocker arm.

3. Place one feeler gauge (of the determined

value) each between valve bridge and the two

valve-stem ends (A) and (B).

4. Turn adjusting screw so that both feeler gauges

can be just pulled through.

5. Hold adjusting screw securely in position with

Allen key and fit locknut by hand on valve bridge.

6. Replace or rectify adjusting screws which do not

move freely.

7. Tighten locknut (2) to 35 Nm + 5 Nm, holding

valve bridge (1) in position with open-end

spanner.

8. Check valve bridge adjustment again.