1999 Ski-Doo Factory Shop Manual Volume Two, Page 105Get this manual
Section 04 ENGINE Subsection 02 (443 AND 503 ENGINE TYPES)
A03C1HA
1Drive pins
At seal no2 assembly, apply light coat of Molykote 111 (PN 413 707 000) on seal lip
PTO side seal must be filled up with Molykote 111
Crankcase halves nos1 and are factory matched and therefore, are not interchangeable as single halvesPrior to joining of crankcase halves, spray some new injection oil (or equivalent) in bearings and on all moving parts of the crankshaftSpray Primer (PN 413 708 100) on one of mating surfacesLet it dry for 10 to 20 minutesApply paste gasket (PN 413 702 700) no5 on the other mating surfaceNOTE: Primer allows Loctite 515 to fully cure on aluminum surfacesIt increases filling capacity and reduces curing timePosition the crankcase halves together and tighten bolts by hand then install and tighten armature plate on magneto side to correctly align the crankcase halves-