Yanmar 3JH5E - Page 98

TROUBLESHOOTING
92 JH Series Operation Manual
Compression leakage from
intake / exhaust valve.
Consult authorized Yanmar Marine
dealer or distributor.
- -
• Starter does not turn or
turns slowly (engine can
be turned manually)
Faulty clutch position. Shift to NEUTRAL and start. -
Insufficient battery charge. Check fluid level. Recharge.
Replace.
See Checking the
Battery Electrolyte
Level (Serviceable
Batteries Only) on
page 78
Cable terminal contact failure. Remove corrosion from
terminals. Tighten battery
cables.
-
Faulty safety switch device. Consult authorized Yanmar
Marine dealer or distributor.
-
Faulty instrument panel. Consult authorized Yanmar
Marine dealer or distributor.
-
Power lacking due to
accessory drive being
engaged.
Consult authorized Yanmar Marine
dealer or distributor.
- -
• Engine cannot be turned
manually
Internal parts seized. Consult authorized Yanmar
Marine dealer or distributor.
-
Abnormal Smoke Color:
• Black smoke Load increased. Consult authorized Yanmar
Marine dealer or distributor.
-
Improper propeller matching. Consult authorized Yanmar
Marine dealer or distributor.
-
Dirty intake silencer (air cleaner). Clean element. See Cleaning the
Intake Silencer (Air
Cleaner) Element on
page 86
Improper fuel. Replace with recommended
fuel.
See Diesel Fuel
Specifications on
page 34
Faulty spraying of fuel injector. Consult authorized Yanmar
Marine dealer or distributor.
-
• Incorrect intake / exhaust
valve clearance.
Consult authorized Yanmar Marine
dealer or distributor.
- -
• White smoke Improper fuel. Replace with recommended
fuel.
See Diesel Fuel
Specifications on
page 34
Faulty spraying of fuel injector. Consult authorized Yanmar
Marine dealer or distributor.
-
Fuel injection timing off. Consult authorized Yanmar
Marine dealer or distributor.
-
Engine burning oil (excessive
consumption).
Consult authorized Yanmar
Marine dealer or distributor.
-
Symptom Probable Cause Measure Reference
JH5_EN_OPM.book 92 ページ ２０１３年８月８日 木曜日 午前９時２３分