BOMBARDIER ski-doo Tundra Scandic 2004 Series, Shop Manual

Page: 165 / 427

Section 04 ENGINE
Subsection 05 (LEAK TEST AND ENGINE DIMENSION MEASUREMENT)
04-05-4
MMR2004-114_04_05A.FM
ENGINE LEAK VERIFICATION FLOW CHART
PRESSURIZE ENGINE
IS ENGINE LEAKING?
CHECK ALL JOINTED SURFACES,
SCREW/STUD THREADS. MOUNTING
FLANGES ETC.
ANY LEAK FOUND?
CHECK SMALL OIL LINES OF
INJECTION PUMP
AIR BUBBLES FOUND
OR OIL MOVING
TOWARD PUMP?
REPLACE GASKET OR O-RING,
RE-SEAL LEAKING AREA
REPLACE INJECTION NIPPLE(S)
REMOVE BLEED SCREW ON CYLINDER HEAD
ARE ANY AIR BUBBLES IN COOLANT?
BLOCK HOSE OF PUMP SHAFT
GEAR
LUBRICATION SYSTEM
IS ENGINE STILL LEAKING?
REPLACE O-RING OF CYLINDER HEAD
AND/OR CYLINDER BASE GASKET
PRESSURIZE PUMP SHAFT GEAR
RESERVOIR IN CRANKCASE
ARE SEALS LEAKING?
CHECK CRANKSHAFT OUTER
SEAL OF PTO AND
MAG SIDES
PRESSURIZE PUMP SHAFT GEAR
RESERVOIR IN CRANKCASE
IS RESERVOIR LEAKING?
UNSEAL PTO CYLINDER AND MAG
CYLINDER SEPARATELY
IS RESERVOIR LEAKING?
IS RESERVOIR LEAKING?
CHECK LEAKAGE AT DRAIN HOLE
BELOW COOLANT PUMP HOUSING
ANY LEAK FOUND?
REPLACE DEFECTIVE SEAL(S)
REPLACE DEFECTIVE SEAL(S)
REPLACE OIL SEAL OF PUMP
SHAFT CERAMIC, BESIDE
COOLANT SEAL
REPLACE DEFECTIVE O-RING
REPLACE DEFECTIVE PARTS
CHECK OIL PUMP
MOUNTING AREA FOR LEAKS
IS O-RING LEAKING?
CAREFULLY INSPECT ENGINE CASTINGS,
PARTICULARLY THE THREAD HOLE AREAS
ANY LEAK FOUND?
ENGINE IS PERFECTLY SEALED
INTERNALLY
NO
YES
YES
YES
YES
NO
NO
NO
YES
YES
YES
NO
NO
YES
NO
NO
NO
NO
YES
YES
YES
NO
ENGINE LEAK VERIFICATION
FLOW CHART
A32C1KS
YES
NO
A32C1KS