1985 Ski-Doo snowmobile Service Manual, Page 86Get this manual
Section 02 ENGINE Sub-section 04 (447 ENGINE TYPE)
ASSEMBLY
13,18,21,22, Armature plate, magneto flywheel, lock washernut
Position the armature plate on the crankcase aligning the marks on both partsClean crankshaft extension taperApply Loctite 242 (blue, medl,nl strength) on taperPosition key, magneto flywheel and lock washer on crankshaftClean nut threads and apply Loctlte 242 (blue, medium strength) before tightening nut to 85 N.m (63 Ibfeft) At reassembly coat all electric connections with silicone dielectric grease to prevent corrosion or moisture penetration