1979 Ski-Doo Supplementary Shop Manual, Page 25Get this manual
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SECTION 02 SUB-SECTION 04 (DRIVEN PULLEY)
Reinstall pul ley, outer shims, lockwas her and boltTorque to N- (7 ft -Ibs) IMPORTANT: Maximum free-play should not exceed mm (18")_ CAUTIONlways apply