bpr Rotax 912 i Series, Maintenance Manual, Page: 224 / 458

d05
93
5.
fm
MAINTENANCE MANUAL
BRP-Powertrain
Effectivity: 912 i Series
Edition 1/Rev. 0
72-30-10
Page 12
July 01/2012
Description
Co
de
Current measurement
value
Tolerance
limit
Tolerance
limit
Measurements
min max 100 % 50 %
1) Piston Cyl.
1 Cyl.
2 Cyl.
3 Cyl.
4
Piston, red
84 mm /
3.3 in. PI01 83.988 mm
3.3066 in. 84.002 mm
3.3072 in. 83.890 mm
3.3027 in. 83.939 mm
3.3047 in. current
replaced
Piston, green
84 mm /
3.3 in. PI01 83.998 mm
3.3070 in. 84.012 mm
3.3075 in. 83.890 mm
3.3027 in. 83.944 mm
3.3049 in. current
replaced
Installation
clearance,
cyl. "A" with
"red" piston CY01
/PI01 0.000 mm
0.0000 in. 0.024 mm
0.0009 in. 0.130 mm
0.0051 in. 0.077 mm
0.0030 in. current
replaced
Installation
clearance,
cyl. "B" with
"green" pis-
ton CY01
/PI01 0.000 mm
0.0000 in. 0.026 mm
0.0010 in. 0.130 mm
0.0051 in. 0.078 mm
0.0031 in. current
replaced
Piston pin
bore PI02 20.001 mm
0.7874 in. 20.005 mm
0.7876 in. 20.040 mm
0.7890 in. 20.023 mm
0.7883 in. current
replaced
Piston pin PI03 19.992 mm
0.7871 in. 19.995 mm
0.7872 in. 19.970 mm
0.7862 in. 19.981 mm
0.7867 in. current
replaced
Piston pin
clearance in
piston pin
bore PI01/
PI02 0.006 mm
0.0002 in. 0.013 mm
0.0005 in. 0.050 mm
0.0020 in. 0.032 mm
0.0012 in. current
replaced
Piston pin
clearance in
conrod CS06
/PI03 0.015 mm
0.0006 in. 0.035 mm
0.0014 in. 0.050 mm
0.0020 in. 0.043 mm
0.0017 in. current
replaced
Backlash bet-
ween piston
ring groove
and rectangu-
lar piston ring
1 PI04 0.030 mm
0.0012 in. 0.062 mm
0.0024 in. 0.100 mm
0.0039 in. 0.081 mm
0.0032 in. current
replaced
Backlash bet-
ween piston
ring groove
and conical
compression
ring 2 PI05 0.030 mm
0.0012 in. 0.062 mm
0.0024 in. 0.100 mm
0.0039 in. 0.081 mm
0.0032 in. current
replaced