1979 Ski-Doo Supplementary Shop Manual, Page 73Get this manual
SECTION 04 SUB-SECTION 02 (ENGIN ES )
Once the circl ips are insta lled, turn each circlip so that he circlip break is not di rectly in line with piston notchUsing very fine emery cloth, remove any burrs on piston caused through circlip installation Ci rclip break
Apply" Loctite 242" on the threads of the two studs screwed above the intake ports
Place clean cloth over crankcase to prevent
circlips from falling into crankcase then use pointed tool to remove circlips from piston Drive the gudgeon pins in or out using su itab le drive punch and hammer_CAUTION: When tapping udgeon pin in or out of piston, hold pist on firm ly in place to eliminate the possibilities of transm itting shock and pressure to the connecting rod