Section 03 TROUBLESHOOTING
Subsection 01 (ENGINE)
SYMPTOM OIL CONTAMINATION (white appearance).
CONDITION NORMAL USE.
1. Check control bore (beside water pump housing) if water and oil leaks.
a. Leakage of oil/water mixture from bore means damaged water pump seal ring and rotary seal.
Replace sealing ring, rotary seal and refill with recommended oil and/or coolant (refer to COOLING SYSTEM).
2. Check cylinder head and/or cylinder base gasket.
a. Gasket damaged or leaking.
Retighten cylinder head with recommended torque and/or replace gasket.
3. Check tightening torque of cylinder head screws.
a. Screws not properly tightened.
Retighten screws to recommended torque and replace oil.
TEST/INSPECTION
4. Check oil for particles (may indicate possible engine internal damages).
a. Oil contamination due to metal or plastic particles.
Replace possibly damaged parts. Use Bombardier’s recommended oil (refer to TECHNICAL DATA).
CYLINDER AND CYLINDER HEAD
SYMPTOM UNUSUAL ENGINE NOISE AND/OR VIBRATIONS.
CONDITION NORMAL USE.
TEST/INSPECTION 1. Check noise coming from cylinder head area.
a. Faulty chain tensioner.
Replace spring and/or mechanism.
b. Chain guide worn out.
Replace chain guide.
c. Stretched chain and/or worn out sprockets.
Replace chain and sprockets.
d. Sprocket screws got loose.
Retighten screws with recommended torque.
e. Hydraulic element inside rocker arm(s) is(are) worn out (valve adjustment).
Replace rocker arm(s).
f. Rocker arm screws not tightened.
Replace screws and perform the torque procedure (refer to CYLINDER AND CYLINDER HEAD).
SYMPTOM OIL CONTAMINATION ON CYLINDER AND/OR CYLINDER HEAD.
CONDITION NORMAL USE.
TEST/INSPECTION 1. Check screws for torque.
a. Loose screws.
Retighten screws with recommend
ed torque.
b. Gaskets are brittle, hard, w
orn out or otherwise damaged.
Replace damaged gaskets, O
-rings or the V-ring on breather.
c. Contact area between
spark plug and stick coils fouled by oil.
Clean spark plu
g area and replace spark plug tube.
42 Te m plat e
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