engine, rotax 1503 4-tec - Sea-Doo.net

Section 01 ENGINES (1503 4-TEC)Subsection 08 (TECHNICAL SPECIFICATIONS)Rocker arm bore diameterRocker arm shaft diameterENGINE NATURALLY ASPIRATED SUPERCHARGEDMinimum (new)Maximum (new)Wear limitMinimum (new)Maximum (new)Wear limit20.00 mm (.7874 in)20.02 mm (.7882 in)20.03 mm (.7886 in)19.98 mm (.7866 in)19.99 mm (.7870 in)19.96 mm (.7858 in)Cylinder head screw Service limit 148.5 mm (5.846 in)Piston ring type and quantityRing end gapRing/piston grooveclearanceRectangularTaper-faceOil scraper ringRectangularTaper-faceOil scraper ring1 st Upper compression ring, rectangular2 nd Lower compression ring, tapered face3 rd Oil scraper ringMinimum (new)Maximum (new)0.3 mm (.012 in)0.3 mm (.012 in)0.3 mm (.012 in)0.5 mm (.020 in)0.5 mm (.020 in)0.5 mm (.020 in)All Wear limit 1.0 mm (.04 in)RectangularTaper-faceOil scraper ringRectangularTaper-faceMinimum (new)Maximum (new)0.02 mm (.0008 in)0.015 mm (.0006 in)0.02 mm (.0008 in)0.07 mm (.0028 in)0.06 mm (.0024 in)Oil scraper ring0.055 mm (.0021 in)All Wear limit 0.15 mm (.006 in)0.024 - 0.056 mmMinimum (new)Piston/cylinder wall clearance(.001 - .0022 in)0.04 mm (.001 in)Wear limit0.1 mm (.0039 in)Cylinder taper (maximum)0.03 mm (.0011 in)Cylinder out of round (maximum)0.015 mm (.0006 in)Minimum (new)24.93 mm (.9815 in)FrontMaximum (new)24.96 mm (.9827 in)Camshaft bearingWear limit24.93 mm (.9815 in)journalMinimum (new)39.89 mm (1.5705 in)PTO and center Maximum (new)39.9 mm (1.5709 in)Wear limit39.88 mm (1.5701 in)Minimum (new)25.00 mm (.9842 in)FrontMaximum (new)25.01 mm (.9846 in)Camshaft boreWear limit25.02 mm (.9850 in)Minimum (new)40.00 mm (1.5748 in)PTO and center Maximum (new)40.01 mm (1.5752 in)Wear limit40.02 mm (1.5756 in)114 smr2005-038