1974 Ski-Doo Shop Manual, Page 113Get this manual
At assembly, torque to 14-16 ft-IbsAt assembly, torque to 29-35 ft-Ibs Note: Once the circlips are installed, turn each circlips so it is not directly on piston notchRemove any burrs on piston caused through circlip installation using very fine emery cloth
000Place clean cloth over crankcase to prevent circlip from falling into crankcaseUse pointed tool to remove circlips from piston Caution: When tapping out gudgeon pins, hold piston fifmly in place to eliminate the possibilities of transmitting shock and pressure to the connecting rodAt assembly, place the pistons over the connecting rods with the letters "AU S", over an arrow on the piston dome, facing in direction of the exhaust port
When installing cylinder andor cylinder head, the cylinder aligning tool must be used to ensure sealing of intake manifold and cylinders(See Tool Section)Install exhaust manifold on cylinder then in stall aligning bar and torque distance nut to 14-16 ft -Ibs Cross torque cylinder head nuts to 14-16 ft -IbsNote: Torque each head individually