1985 Ski-Doo snowmobile Service Manual, Page 119Get this manual
Section 02 ENGINE Sub-section 06 (467 ENGINE TYPE)
CLEANING
Discard all gaskets and O-ringsClean all metal components in non-ferrous metal cleanerScrape off carbon formation from cylinder exhaust port, cylinder head and piston dome using wooden spatula
ASSEMBLY
16, Piston
At assembly, place the pistons over the connecting rods with the letters AUS (over an arrow on the piston dome) facing in direction of the exhaust port
NOTE: The letters "AUS" (over an arrow on the piston dome) must be visible after cleaning
Clean the piston ring grooves with groove cleaner tool, or with piece of broken ring
EXHAUST
DISASSEMBLY
16,17,18, Piston, gudgeon pincirclips
Place clean cloth over crankcase then with pointed tool inserted in piston notch, remove circlip from pistonDrive the gudgeon pin out of piston using suitable drive punch and hammer CAUTION: When tapping gudgeon pin in or out of piston, hold piston firmly in place to eliminate the possibilities of transmitting shock and pressure to the connecting rodAOO 100200 1