page 48
Release 00 - 03/2018
Engine RS100 - RSC100
Service manual
14. ENGINE BLOCK - External operations
14.6. Replacing the lower compression ring of the
engine shaft (sump side)
NOTE - Before executing this operation di-
scharge all the oil from the bowl and rotate
180° the motor.
1 - Remove the blade (26) and hub (27).
2 - Take out the spline key (28).
3 - Use a thin screwdriver inserted under the sealing
lip to extract the oil seal ring (29).
4 - Make a paper tube (30) around the shaft to
protect the sealing lip and insert the new ring (31)
so that it enters its housing.
5 - Complete the insertion with the help of a pipe
(32) of a diameter of approximately 30-35 mm.
Tightening torques
2 Spark plug tightening torque 16-20 Nm
6 Valve cover xing screws 7-9 Nm
13 Fan xing nut 60-70 Nm
19 Blow-by closure plate screw 7-9 Nm
Technical information
Inlet valve clearance 0,15-0,20 mm
Exhaust valve clearance 0,15-0,20 mm
Special equipment
3 Compression testing tool
28
29
31
30
32
27
26
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