1985 Ski-Doo snowmobile Service Manual, Page 196Get this manual
Section 02 ENGINE Sub-section 09 (537 ENGINE TYPE)
19,20,21, Bearing 6201, sealsdistance ring
22,23, Pump housing boltsLoctite 242
Apply Loctite 242 on bolts thread
NOTE: After seals installation, check if the water pump end bearing is correctly positioned (use pusher PIN 420 876 500)
2, Rotary valve cover bolts
Torque the rotary valve cover bolts to 20 N-m (15 Ibf-ft)Installation on genuine crankcase with mark (ridge)
REQUIRED TOOL
T.D.Cgauge PIN 414 104700
A 00000 100 1