1980 Ski-Doo Shop Manual, Page 9Get this manual
SECTION 01 (TOOLS)
Oil seal sleeve 247 engines PTO 420 977 910 MAG 420 276 900 Water pump oil seal sleeve 354, 444, 454, 464 water pump 420 876 490 rotary valve 420 876 495
To avoid oil seal damage dunng crankshaft Installation
Od seal sleeve (on crankshaft)
Rotary va Ive shaft pusher420876610
Liquid cooled Rotary
valve engines
Ball bearing pusher420876 500 To Install water pump ball bearing, 354, 444, 454, 464 engine typesBearing simulator