Operation CHARM: Car repair manuals for everyone.

Cylinder Block







Cylinder bore
Using an internal dial gauge 50 to 100 mm, measure at 3 points in diagonal sequence horizontally - A - and vertically - B -.
Maximum deviation from nominal dimension: 0.08 mm





Guide frame
Replace bolts - 1 to 20 -.
Tighten bolts for guide frame as follows:
Tighten bolts - 1 to 10 - to 30 Nm with torque wrench.
Tighten bolts - 11 to 20 - to 20 Nm with torque wrench.
Tighten bolts - 1 to 10 - to 50 Nm with torque wrench.
Tighten bolts - 11 to 20 - to 30 Nm with torque wrench.
Tighten bolts - 1 to 10 - 90° (1/4 additional turn) using a rigid wrench.
Tighten bolts - 11 to 20 - 90° (1/4 additional turn) using a rigid wrench.
Tighten cylinder block/guide frame sealing surface bolts, - highlighted in illustration but not numbered -, in a diagonal sequence to 9 Nm.

Connecting Rod
Connecting rod bolt 40 Nm plus an additional 90° (1/4 turn)

Crankshaft dimensions





Piston ring end gap





Piston ring side clearance





Vibration damper





Tighten vibration damper bolts - arrow - diagonally in 3 stages.
Using torque wrench, tighten to 15 Nm
Using torque wrench, tighten to 22 Nm
With Torx key 90° (1/4 turn) additional turn