Installing Cylinder Head

Installing cylinder head




Tools

1. Fit cylinder head gaskets.








Note: The gaskets are identified by Cyl. 1 - 3 or Cyl. 4 - 6 with OBEN/TOP, plus the corresponding part number. Ensure correct seating of dowel sleeves in crankcase. Put on gaskets.

2. Fasten cylinder heads.
Moisten cylinder-head screws thinly with engine oil.

Tightening sequence of cylinder-head screws
Initial tightening or tightening to flatten
1st step: 30 Nm (23 ft. lbs.)
2nd step: Completely loosen cylinder head screws





Final tightening
1st step: Application torque 20 Nm (15 ft. lbs.) in prescribed tightening sequence
2nd step: Torque-angle tightening 1 x 60° ± 2° in same sequence
3rd step: Torque-angle tightening 1 x 60° ± 2° in same sequence





Diagram shows torque-angle tightening with 60°





3. After tightening the cylinder-head screws, additionally fasten four pan-head screws M6 x 35 (10.9) (with captive washers) in the area of the chain box. Tightening torque 13 Nm (10 ft. lbs.)