System Specifications

Cylinder Block
Bore 96 mm (3.78 in.)

Thrust Bearing Screws





Initial tightening 25 Nm (19 ftlb.)
Final tightening 1 x 90° turn

Connecting Rod Bolts
Please refer to Mounting Specification For Connecting-Rod Bolts for specifications and procedures. [1][2]Connecting Rod, Engine

Piston Specifications





Check piston diameter -D- on oil piston shank with micrometer gauge. Measured from the lower edge of the shank, the height -X- on the shank is 16 mm.

The maximum wear allowed on specified measuring point is 100 microns (= 0.1 mm). If this measurement is exceeded, the piston must be replaced. The reference measurements for the piston dimensional groups are to be taken from the following table!

Original pistons are only available in the dimensional group X.

Please observe different weight groups!





Belt Pulley On Crankshaft M16 x 1.5 (a/f 24)
First pass 50 Nm (37 ftlb.)
Final pass 90° torque angle