Yanmar 3JH5E Operation Manual page 100

TROUBLESHOOTING
Symptom
Compression leakage from
intake / exhaust valve.
• Starter does not turn or
turns slowly (engine can
be turned manually)
Power lacking due to
accessory drive being
engaged.
• Engine cannot be turned
manually
Abnormal Smoke Color:
• Black smoke
• Incorrect intake / exhaust
valve clearance.
• White smoke
92
Probable Cause
See your authorized Yanmar Marine
dealer or distributor.
Faulty clutch position.
Insufficient battery charge.
Cable terminal contact failure.
Faulty safety switch device.
Faulty instrument panel.
See your authorized Yanmar Marine
dealer or distributor.
Internal parts seized.
Load increased.
Improper propeller matching.
Dirty intake silencer (air cleaner).
Improper fuel.
Faulty spraying of fuel injector.
See your authorized Yanmar Marine
dealer or distributor.
Improper fuel.
Faulty spraying of fuel injector.
Fuel injection timing off.
Engine burning oil (excessive
consumption).
Measure
-
Shift to NEUTRAL and start.
Check fluid level. Recharge.
Replace.
Remove corrosion from
terminals. Tighten battery
cables.
See your authorized Yanmar
Marine dealer or distributor.
See your authorized Yanmar
Marine dealer or distributor.
-
See your authorized Yanmar
Marine dealer or distributor.
See your authorized Yanmar
Marine dealer or distributor.
See your authorized Yanmar
Marine dealer or distributor.
Clean element.
Replace with recommended
fuel.
See your authorized Yanmar
Marine dealer or distributor.
-
Replace with recommended
fuel.
See your authorized Yanmar
Marine dealer or distributor.
See your authorized Yanmar
Marine dealer or distributor.
See your authorized Yanmar
Marine dealer or distributor.
JH Series Operation Manual
Reference
-
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See Checking the
Battery Electrolyte
Level (Serviceable
Batteries Only) on
page 78
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See Cleaning the
Intake Silencer (Air
Cleaner) Element on
page 86
See Diesel Fuel
Specifications on
page 34
-
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See Diesel Fuel
Specifications on
page 34
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