1996 Ski-Doo Shop Manual, Volume 1, Page 100Get this manual
Se ion (EN GI E) Sub-Section 02 (377, 443 AND 503 ENGINE TYPES)
NOTEEngine must be removed from chassis to perform the following procedures
Feeler gauge
Distance gauge
CLEANING
Discard all seals, gaskets and O-ringsClean all metal components in non-ferrous metal cleanerUse gasket remover (P 4137085 00) accordingly
10, Loctite 242
Remove all trace of Loctite from crankshaft taperRemove old sealant from crankcase mating surfaces with Bombardier gasket remover (P 4137085 00)CAUTIONNever use sharp object to scrape away old sealant as score marks incurred are detrimental to crankcase sealing, AOOO 002038 AOOO 002118
DISASSEMBLY
General
To remove drive pulley, refer to DRIVE PULLEY 05-02To remove magneto, refer to CDI MAGNETO 04-04
Prior to installation, place bearings into an oil container filled with oil heated to 75C (167"F)This will expand bearings and ease installationInstall bearings with groove as per exploded viewBearings are pressed on crankshaft until they rest against radiusThese radius maintain the gap needed for bearings lubrication