General Specifications

Surface Variation





Use knife-edge straightedge and feeler gauge to measure at several points.

Max. permissible distortion 0.1 mm





Reworking the cylinder head (shaving) is only permitted down to minimum dimension a.

Minimum dimension a 139.25 mm

Cylinder-to-Piston Clearance








Use internal dial indicator (50-100 mm)
Take measurements at 3 positions in both lateral direction -A- and longitudinal direction -B-

Permissible deviation from nominal dimension max. 0.10 mm

Crankshaft Journal

(in mm)





Axial clearance:

New 0.07-0.21 mm
Wear limit 0.30 mm

Check radial clearance with Plastigage TM

New 0.01-0.04 mm
Wear limit 0.15 mm

Main Bearing Cap

Torque 65 Nm plus 1/4 turn (90 degrees)

Connecting Rod Bearing

Axial clearance

New 0.10-0.35 mm
Wear limit 0.40 mm

Check radial clearance with Plastigage TM

New 0.01-0.05 mm
Wear limit 0.12 mm

Piston Ring





Push ring squarely from above down to approx. 15 mm from bottom end of cylinder. To do this use a piston without rings.











Vibration Damper/Crankshaft Pulley

Torque 25 Nm