Cylinder Block

Cylinder bores





Special tools, testers and auxiliary items required
Inner bore gauge 50 to 100 mm
Measure diagonally at 3 positions transversely - A - and longitudinally - B -.
Deviation from nominal size maximum 0.08 mm

Crankshaft dimensions





Crankshaft bearing cap





Replace bolts - A - and nuts - 1 through 10 -.
Tighten bearing cap nuts or bolts in the following sequence:

1. Hand-tighten bolts A.
2. Tighten nuts 1 through 10 35 Nm
3. Tighten nuts 1 through 10 90° (1/4 additional turn) using a rigid wrench.
4. Tighten bolts A 22 Nm
5. Tighten bolts A 90° (1/4 turn) further using rigid wrench.

Allocation of crankshaft bearing shells for cylinder block








Bearing shells with correct thickness are allocated to cylinder block in the factory. Colored dots on bearing shells serve for identifying bearing shell thickness.

Note:
^ - Arrow - points to belt pulley side.

Allocation of bearing shells to cylinder block is identified with a letter by each bearing.

Allocation of crankshaft bearing shells for bearing cap





Bearing shells with correct thickness are allocated to bearing cap at factory. Colored dots on the bearing shells serve for identifying bearing shell thickness - arrows -.

Allocation of bearing shells to crankshaft is marked at crankshaft counterweight by colored dots.

Connecting rod
Connecting rod bolt 30 Nm plus an additional 90° (1/4 turn)

Radial clearance





Piston ring gap








Ring to groove clearance








Vibration damper