1978 Ski-Doo Shop Manual, Page 129Get this manual
SECTION 04 SUB-SECTION 02 (ENGINES) (
COOLING SYSTEM
CLEANING
Clean all metal components in non-ferrous metal cleanerTurn knurled knob to center bent feeler rod between pulley halvesInsert mm (.040") feeler gauge between tool arm and knurled knobsIf gauge fits between both sides of the arms, the setting lies within toleranceIf clearance is smaller than mm (,040") on one side, shirnts) must be added or removed between bearing and inner pulley half to bring both gaps within tolerance of 1.5 mm 0.5 (,060" .020")Excess shimts) should be stored between outer pulley half and fanCorrect fan belt free-play is mm (14")To adjust, add or remove shirntsl between inner and outer pulley halvesExcess shirnts) must be positioned between outer pulley half and fan
DISASSEMBLYASSEMBLY
0At assembly, apply "Loctite Lock'n Seal 242" or equivalent on threads to prevent loosening through vibration
NOTE: To correctly remove "Loctite" locked screw, it is necessary to slightly tap on head of screwdriver to break bond