PIAGGIO PORTER 1.3 16V 2008, Service Manual

Page: 304 / 892

Connecting rod
Connecting rod check
1. Visually check the connecting rod, to find pos-
sible damage or cracks.
2. Resorting to a special tool to align connecting
rods, check if connecting rods are bent A or twis-
ted B .
If the bending and/or torsion level exceeds the
maximum allowed value, replace the connecting
rod.
Characteristic
Maximum bending:
0.05 mm
Maximum torsion:
0.05 mm
Pin-connecting rod forced coupling check
1. Measure the pin outside diameter which must
be coupled with the connecting rod, using a mi-
crometer.
2. Measure the inside connecting rod diameter,
with a dial gauge for holes.
3. Determine the forced coupling deducting the
connecting rod inside diameter value from the pin
outside diameter value.
If the forced coupling does not comply with the
specified values, replace the connecting rod.
Characteristic
Forced coupling:
0.015 - 0.044 mm (interference)
Engine
PORTER 1.3 16V
EN - 304