1978 Ski-Doo Shop Manual, Page 112Get this manual
SECTION 04 SUB-SECTION 02 (ENGINES)
To remove bearings from
crankshaft use protective cap and special puller as illustrated(See Tool Section)
At assembly, torque to 22 Nom (16 ft-Ibs) following illustrated sequence
NOTE: Prior to magneto side bearing installation, install required shirnls) (crankshaft end play) on crankshaft extensionAt assembly, place bearings into an oil container and heat the oil to 100C (21 F) for to 10 minThis will expand the bearings and permit them to slide easily on the shaft
To remove or install new seal into crankcase use an appropriate oil seal pusher as illustrated(See Tool Section)Torque to 35 Nom (26 ft-lbs)To remove or install magneto retaining nut, lock crankshaft in position with special hold-on support(See Tool Section)Oil seal pusher&-