1989 Ski-Doo Repair Manual, Page 167Get this manual
Section 02 ENGINE Sub-section 06 (536 ENGINE TYPE)
NOTE: Ball bearing shielded side must be facing rotClry vCllve
20,31,32, Seals, shimrubber washer
To install seals on water pump side proceed as follows:
A016 002 027
Draining hole
valve side