1979 Ski-Doo Supplementary Shop Manual, Page 88Get this manual
SECTION 04 SUB-SECTION 02 (ENGINES )
ROTARY VALVECOOLANT PUMP
CLEANING
Discard all oil seals and0" rings Remove old crankcase sea lant rom rotary valve gear, adjacent bearing and cap mating surface Clean all metal components in non-fe rrous metal clea nerBearing =-"':"lirr"rlt-, Apply "Loctite 515" Rotary valve
DISASSEMBLYASSEMBLY
Q) Torque to 20 Nom (15 ft-Ibs) To instal shaft assembly, use fiber hammerUse no
App ly "Loctite 242" There are two
on threads
420876 505 pusher to insert oil seal with lith ium grease
on sea lip
interchangeable types of rotary valve shaftThe first one is made of shaft ith pinion attached to it by means of key an Allen screw On the second type, the pinion and the shaft are machined together as single part
Second type