Inspection Of The Piston Diameter - Rotax 125 MAX evo Repair Manual

INSPECTION OF THE PISTON DIAMETER

Instructions
1. Measure the piston diameter with a micrometer (1). Conditions of measurement: room tem-
perature = 20 °C, measuring point 20 mm from the lower edge of the piston, perpendicular to
the piston pin axis.
2. Determine the piston to cylinder clearance. The wear limit is 0.08 mm.
N N O O T T E E
The piston clearance of a new piston/cylinder pairing should be 0.04 - 0.05 mm.
Figure 1.12: Piston diameter
______________________________________________________
Effectivity: 125 MAX evo, Junior MAX
evo, Mini MAX evo, Micro MAX evo
Edition - February 01 2018 /Rev. 0
BRP-Rotax
REPAIR MANUAL
1 Micrometer
Chapter 4
Page 13