1983 Ski-Doo Shop Manual, Page 49Get this manual
SECTION 02 ENGINE SUB-SECTION 03 (377 ENGINE TYPE)
CLEANING
Discard all seals, gaskets and "0" ringsClean all metal components in non -ferrous metal cleanerRemove old sealant from crankcase mating surfaces with Bombardier sealant stripper_ CAUTION: Never use sharp object to scrape away old sealant as score marks incurred are detrimental to crankcase sealing
ASSEMBLY
Prior to installation, place bearings into an oil container heated to 100 (21O F)This will expand bearings and ease installationInstall bearings with groove as per exploded viewBearings are pressed on crankshaft until they rest against radiusThis radius maintains the gap needed for bearings lubrication At seal installation, apply light coat of lithium grease on inside diameter lip of sealsFor bearings lubrication purpose, gap of 1.0 mm L040") must be maintained between seals and bearingsWhen installing plain seals (without locating ring or without spacing legs), ensure to maintain the specified gap as illustrated
DISASSEMBL Y
General
To remove drive pulley, refer to "Drive Pulley", section 03, sub-section 03To remove magneto, refer to "Magneto" in this sectionTo remove bearings from crankshaft use protective cap and special puller, as illustrated(See Tools section)PTaside