AD Boivin 2002 Snow Hawk, Service Manual

Page: 61 / 173

ENGINE / CYLINDERS AND CYLINDER HEADS 7 - 11
When reassembling, place the pistons over the connecting rods
so that the arrow under the letters "AUS" is facing the exhaust
port.
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NOTICE:
The pistons and the replacement cylinders have a red or green
mark on them. It is very important to match a piston with a
cylinder of the same colour.
To minimize the effects of the forces of acceleration on the
circlips, install them as illustrated.
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CAUTION
The circlips must not move freely in the groove after their
installation. If they do move, replace them.
Use the piston circlip installation tool (P/N 529 0169 00).
1. insert the circlip
2. Secure it
3. Oil it
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NOTICE:
After re-reaming the cylinder lining, make sure to redo the
bevelled edges all around the opening of the intake, transfer and
exhaust ports.
Before inserting the piston in the cylinder, lubricate the cylinder
with new injection oil or the equivalent.
Install the piston ring compressor (P/N 420 8769 70) on the
piston (complete).
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NOTICE:
The piston ring compressor cannot be used on oversized
pistons.
EXHAUST
Piston
notch
Circlip
opening at
6 o’clock