1997 Ski-Doo Factory Shop Manual Volume Two, Page 70Get this manual
Section 03 ENGINE Sub-Section 02 (443 AND 503 ENGINE TYPES)
' sis to perform the following procedures
NOTE: Engine must be removed from chas-
Remove engine from chassisRemove fan guard, rewind starter, starting pulley, trigger coil wire from 4-connector housing, magneto flywheel then fan housingRemove stator plate
To check proper clearance between bearing no3 and counterweight, use feeler gauge (PN 420 8766 20)Mount second bearing with distance gauge (PN 420 8768 22) for 443 engine and (PN 420 8768 24) for 503 engine for proper positioning1 2
CLEANING
Discard all seals, gaskets and O-ringsClean all metal components in non-ferrous metal cleanerUse gasket remover (PN 413 7085 00) accordinglyRemove all trace of Loctite 242 from crankshaft taperRemove old sealant from crankcase mating surfaces with Bombardier gasket remover (PN 413 7085 00)A00C46A
CAUTION
Never use sharp object to scrape away old sealant as score marks incurred are detrimental to crankcase sealing