1986 Ski-Doo Factory Shop Manual, Page 84Get this manual
Saction 02 ENGINE Sub-section 04 (447 ENGINE TYPE)
'- Hexagonal nut M8 (5! 2Distance nut Me 27.5 13) 3Cone sleeve (8 4Cylinder head (2)
5Gasket, cylfnder head t2J 6Suppon damper ")
7Cylinder with sleeve (2J
8Gasket, intake manifold (4) 9!make manifold 7) 10Lock washer mm (2) 11 Hexagonal SCI'I?W M8 40 (2) '2, Leakw(Jsher mm (2)
13He.Jagonal screw M8 74 (2) 14Hexagonal screw M6 25 {2} 15lock Wf)sher mm (2) i6Inrake cover 77Rubber ring i8Gasket, cylinder flange (2) 19, Semluapez ring (2) 20Rectangular ring (2) 21Piscofl (2) 22Gudgeon pin (2) 23Circlip (4) 24Needle cage (2)
CLEANING
Discard all gasketsClean ali metal components in non-ferrous metal cleanerScrape off carbon formation from cylinder exhaust port, cylinder head and piston dome using wooden spatulaMEASUREMENTS
Cylinder taperCylinder oul 01 round Cylinderpiston clearance Ringpiston groove clearance"
Ring end gap
TOLERANCES FITTING NEW PARTS (MIN (MAX NA NA
.OB mm 1.0031")
WEAR LIMIT
.OS mm t0031") ,05 mm (.0020") .20mm L0079")