1980 Ski-Doo Shop Manual, Page 113Get this manual
SECTION 03 SUB-SECTION 02, (ENGINES)
ROTARY VALVE &COOLANT PUMP
CLEANING
Discard all oil seals and "0" nngsClean all metal components in non-ferrous metal cleaner00At assemblyapply crankcase sealant "Loctlte 515" on beanng and rotary valve shaft mating surfaces
DISASSEMBLYASSEMBLY
0throughRotary valve shaft assembly
To remove rotary valve shaft assembly from crankcasefirst remove coolant pump impellerandcirclipUsing the suitable pusher (PIN 420876610) and fiber hammerpush shaft assemblyApply