MWM Acteon Workshop Manual page 82

Pistons and Connecting Rods
Loosen connecting rod cap, assembly the bearing
shells with the aid of the expansion pin, assembly
again the connecting rod cap and tighten according to
Compare the clearances obtained from the crankpins
with the bore gauge.
Measure the clearance with the bore gauge turned
90° from the partition of the bearing shells.
9.612.0.006.7160 - 05/04