1983 Ski-Doo Shop Manual, Page 98Get this manual
SECTION 02 ENGINE SUB-SECTION 05 (503 ENGINE TYPE)
1Support 2Hexagonal washer head powerlock screw 74-20 72 (6) 3Clip 4Injection oil tank 5Grommet 6Oil level switch 7Gasket 8Oil tank cap 9Spring clip (3) 10 Oil line 4" (102 mm) 11Filter 12Oil line 4" (102 mm) 13Retaining strip 14Oil pump mounting flange 15Oil pump (with inlet elbow) 16Washer 6.2 (2) 17Oil pump gear teeth 18Lock nut mm 19Lockwasher (2) 20 Cylindrical slotted screw M5 16 (2) 21 Ball bearing 22Gear teeth 23Oil banjo gasket (4) 24Banjo(2) 25Banjo bolt (2) 26Oil line 230 mm (9") 27Oil line 360 mm (14") 28Clamp (4) 29Rubber ring 30 Taptite screw M5 16 (4) 31Spring 32Washer 33Lever 34Lockwasher mm 35Hexagonal nut 36Washer 37Hexagonal head screw M6 38Seal 39Retainer 40 O'ring 41Plate (with inlet elbow) 42Screw with lock washer (8) 43Stop pin 44Gasket 45Cam casing plate 46Oil