1989 Ski-Doo Repair Manual, Page 164Get this manual
Section 02
Sub-section 06 (536 ENGINE TYPE)
ROTARY VALVE, COOLANT PUMPRESERVOIR
,ROTary 'valve cover Me 20 14) .1l nek _:slier mm 40ring ROTa! v!tl"c 6eireip 7Rotary valve shalt
8 $1)(11 BfJ,?,ing 6203
21 Lirhiuln grl8$6 22Pump housing