Bombardier SeaDoo 2001 factory shop manual, Page 75Get this manual
Section 04 ENGINE Subsection 02 (LEAK TEST)
ENGINE LEAKAGE DIAGNOSTIC FLOW CHART
717 and 787 RFI Engines
PRESSURIZE ENGINE COOLING SYSTEM YES
IS SYSTEM LEAKING? NO PRESSURIZE ENGINE NO
CHECK TESTING KIT
REPLACE O-RING OF CYLINDER HEAD ANDOR CYLINDER BASE GASKET
IS ENGINE LEAKING? YES CHECK TESTING KIT
RECHECK ENGINE SEALING
CHECK ALL JOINTED SURFACES, SCREWSTUD THREADSMOUNTING FLANGES ETCYES REPLACE GASKET OR O-RING, RE-SEAL LEAKING AREA
ANY LEAK FOUND? NO CHECK SMALL OIL LINES OF INJECTION PUMP AIR BUBBLES FOUND OR OIL MOVING TOWARD PUMP? NO BLOCK LARGE HOSES OF ROTARY VALVE GEAR LUBRICATION SYSTEM NO
REPLACE CHECK VALVE(S)LINE(S)
IS ENGINE STILL LEAKING? YES CHECK TESTING KIT
CHECK CRANKSHAFT OUTER SEAL OF PTO AND MAG SIDES YES
PRESSURIZE ROTARY VALVE GEAR RESERVOIR IN CRANKCASE
ARE SEALS LEAKING? NO PRESSURIZE ROTARY VALVE GEAR RESERVOIR IN CRANKCASE