Pre-Assembly Inspections And Measurements - MWM Acteon Workshop Manual

Pistons and Connecting Rods
The weight of the connecting rod is identified by a sequence of letters and numbers between the stem and the cap.
According to the letter (X, Y and Z) it is possible to identify the weight strip.
Letter Weight Strip
X 1625g - 1666g
Y 1667g - 1707g
Z 1708g - 1748g
The difference of weight between all pistons / connecting
rods sets, in the same engine, must be of, at the most,
41g. So, as spare part it is only available the connecting
rod of the letter Y.

Pre-Assembly Inspections and Measurements

Application
Production
Production
Spare Part
Connecting Rod Mark
Connecting Rod Mark
The connecting rod stem / cap pair is made by the
coincidence of the digits engraved on the connecting
rod stem with the first 4 digits engraved on the
connecting rod cap.
9.612.0.006.7160 - 05/04