1982 Ski-Doo Shop Manual, Page 35Get this manual
SECTION 02 ENGINE SUB-SECTION 02 (277 ENGINE TYPE)
CLEANING
Discard all seals and gaskets Clean all metal components in non-ferrous metal cleaner
NaTE: For the measurement proce,ures, refer to "Engine Tolerances Measurementsection 02, sub-section 09
ASSEMBLY
Prior to installation, place bearings into an oil container and heat the oil to 100C (210F) for to 10 minThis will expand bearings and ease installationInstall bearings with groove outwardCrankshaft end-play requires adjustment only when crankshaft andor crankcase is replacedPrior to magneto side bearing installation shim(s) on crankshaft extensionFor the crankshaft end-play adjustment procedure, refer to Engine Tolerances Measurement, section 02, sub-section 09
DISASSEMBL Y
General
To remove drive pulley, refer to "Drive Pulley", section 03, sub-section 03To remove magneto, refer to "Magneto" in this section
G) Do not remove polyamid rings unless necessaryTo remove, heat slightly with butane torch then pry out using screwdriver
To remove seals, push from outside the crankcase