AD Boivin 2002 Snow Hawk, Service Manual

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ENGINE / CYLINDERS AND CYLINDER HEADS 7 - 7
TOP END
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NOTICE:
The engine must be removed from the chassis to carry out the
following operations.
CLEANING
Throw away all the seals. Use a seal cleaning agent to clean all
the contact surfaces.
Clean all the metal parts with a solvent for non-ferrous metal.
Using a wooden spatula, scrape and remove the carbon in the
exhaust port, the cylinder head and on the piston cap.
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NOTICE:
Clean the piston cap well so that the letters "AUS" and the arrow
are visible after the cleaning.
Clean the grooves of the piston rings with a special tool or with an
old piece of ring.
DISMANTLING
The piston pins of the SNOW HAWK
TM
are equipped with
needle bearings without a cage.
Use a piston wrist pin extractor (P/N 529 0210 00), an
expansion bushing and a positioning bushing.
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Cover the casing with a clean cloth or a rubber cushion
(P/N) 529 0234 00) to prevent the circlips from falling
into it. Then remove the piston circlip by inserting a
pointed tool into the piston notch.
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Insert the piston wrist pin extractor (P/N 529 0210 00),
then install the expansion socket over the extractor rod.
Wrist pin extractor Expansion
socket