1996 Ski-Doo Shop Manual, Volume 1, Page 84Get this manual
Se ion EN GI Sub-Section 01 (247 AND 277 ENGINE TYPES)
NOTEEngine must be removed from chassis to perform the following procedures
CLEANING
Discard all oil seals and gasketsClean all metal components in non-ferrous metal cleaner
Heat to 110-120C (230-248"F) all around bearing seat on MAG sideInstall puller with plate, long bolts M8 110 mm and flat washersExtract MAG side crankcase halfM8 110 mm Plate
DISASSEMBLY
Genera I
To remove drive pulley, refer to DRIVE PULLEY 05-02To remove magneto, refer to MAGNETO in this section
2,6, Crankcase Half
247 Engine Type When disassembling crankcase halves, do not heat the crankcaseIf heat is necessary, temperature must not exceed 55C (130"F)277 Engine Type Heat to 11 O-120C (230-248"F) all around bearing seat on PTO sideInstall puller (P 4208762 98) to plate (P 5290249 00) with washer under screw heads and extract PTO side crankcase half247 Engine Type