2004 Ski-Doo REV Series Factory Service Manual, Page 76Get this manual
Section 03 TROUBLESHOOTING Subsection 01 (ENGINE)
ENGINE LEAK VERIFICATION FLOW CHART
ENGINE EA ERI ICATION ART
PRESSURI ENGINE NO
IS ENGINE LEAKING YES ECK ALL OINTE SURFACES SCREWSTU REA SMOUNTING FLANGES ETCYES REPLACE GASKET OR O-RING RE-SEAL LEAKING AREA
ANY LEAK FOUN NO ECK SMALL OIL LINES OF IN ECTION PUMP
AIR BUBBLES FOUN OR OIL MOVING TOWAR PUMP NO REMOVE BLEE SCREW ON CYLIN ER EA
REPLACE IN ECTION ECK VALVE(S)
ARE ANY AIR BUBBLES IN COOLANT NO BLOCK OSE OF PUMP AFT GEAR LUBRICATION SYSTEM NO
REPLACE O-RING OF CYLIN ER EA AN OR CYLIN ER BASE GASKET
IS ENGINE STILL LEAKING YES ECK CRANKS AFT OUTER SEAL OF PTO AN MAG SI ES YES
ARE SEALS LEAKING NO PRESSURI PUMP AFT GEAR RESERVOIR IN CRANKCASE PRESSURI PUMP AFT GEAR RESERVOIR IN CRANKCASE