Fitting The Piston - MOTO GUZZI Stelvio 1200 NTX Service Manual

Engine
•
Mark the piston crown on the exhaust
side so as to remember the refitting po-
sition.
•
Remove the piston.

Fitting the piston

NOTE
THE OPERATIONS DESCRIBED BELOW REFER TO REMOVING ONLY ONE HEAD BUT APPLY
TO BOTH HEADS.
•
The reference on the piston ring must
be facing the piston crown.
•
Fit the piston rings on the piston: - the
oil scraper in the lower slot; - the thicker
smooth ring in the intermediate slot; -
the less thick smooth ring in the upper
slot.
•
The piston rings must be offset at 120°
one from the other.
•
Fit one of the two pin snap rings on the
piston.
•
Lock crankshaft rotation.
Specific tooling
12.91.18.01 Tool to lock the flywheel and the
starting ring gear
•
Fit the piston.
NOTE
CHECK THE PISTON DIRECTION ACCORDING TO THE REFERENCES MARKED ON THE PISTON
CROWN. DO NOT ASSEMBLE PISTONS AND CYLINDERS OF DIFFERENT SELECTOR TYPES.
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ENG - 150
STELVIO 1200 NTX