DISTRIBUTE Loctite 270 (high-strength) ON THE THREAD AND SCREW THE STUD BOLT ON
THE CRANKCASE UNTIL THEY PROTRUDE BY 137 mm (5.39 in), THEN MAKE SURE THE Loctite
HAS SET.
•
The piston rings are different and must
be installed with the marking at the top.
•
Fit the lower oil scraper ring on the pis-
ton with the gap turned towards the
exhaust side.
•
Install the remaining piston rings on the
piston, offsetting the gaps in the rings
by 90° relative to each other.
•
Fit a new retainer ring on the piston.
•
Insert piston in the cylinder using the
tool.
Specific tooling
020895Y Piston installation ring
•
Install the second pin retainer ring on
the tool guide, as shown in the figure.
•
Insert tool shaft and push retainer ring
inside the guide until reaching the
height shown in the figure.
•
Fit a new base gasket.
•
Fit the piston-cylinder assembly previ-
ously assembled on the stud bolts,
aligning pin with connecting rod big
end.
•
Fit the tool in the pin and push shaft to
position the retainer ring in its seat.
Specific tooling
020894Y Pin snap ring fitting tool
Engine DORSODURO 1200 ABS - ATC
ENG - 268
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