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24
TROUBLESHOOTING
PROBLEM: ENGINE WILL NOT START OR IS DIFFICULT TO START
Possible Cause
Corrective Action
Engine doesn’t crank
Or crank slowly.
• Change oil level by whether (temperature).
• Check battery and cables
Insufficient fuel flow
• Ensure that there is fuel in the tank.
• Clean the fuel system and replace fuel if water, dirt or other impurities are present.
• Check the fuel filter. Clean or replace as required.
• Check and bleed air from fuel filter, injection pump and fuel lines.
• Check and clean injection nozzles, being careful not to damage the orifice.
• Replace injection nozzle(s) if not working properly after cleaning.
Improper valve clearance
• Check and adjust valve clearance when the engine is cold.
HB29D1, HB36D1 : intake 0.25mm, exhaust 0.30mm
Low compression
• Check valves for leakage – grind valves to correct.
• Check for bad valves, piston wear, ring damage or wear, or liner wear.
Have parts replaced.
Incorrect
fuel
injection
timing
• Proper injection timing (crank angle before top dead center) : 18°
PROBLEM: ENGINE SUDDENLY STOPS RUNNING
Possible Cause
Corrective Action
Lack of fuel
• Check fuel level and refill.
• Check the fuel system. Repair leaks and bleed air from the system.
Clogged or faulty fuel
injector(s)
• Clean or replace as needed.
Seizure due to lack of
lubrication
• Check for and repair leaks. Fill to correct oil level.
• Check for clogged oil filter and replace.
• Check oil pump and lubrication system.
• Check to see if engine bearing clearance is within specifications.
• Follow oil and filter service instructions to prevent future occurrences.
Summary of Contents for HDFN25F
Page 4: ...4 Fig 1 1 Lifeboat davit arrangement...
Page 5: ...5 Fig 1 2 1 Free Fall Lifeboat General Arrangement for NON Tanker Type...
Page 6: ...6 Fig 1 2 2 Free Fall Lifeboat General Arrangement for Tanker Type...
Page 31: ...APPENDIX A MARINE DIESEL ENGINE TYPE HB29D1 HB36D1...
Page 35: ...3 2 DIMENSIONS...
Page 48: ...16 STARTING SYSTEM TURN KEY TYPE...
Page 49: ...17 ALTERNATOR SYSTEM TURN KEY TYPE...
Page 50: ...18 GLOW SYSTEM TURN KEY TYPE...
Page 51: ...19 OIL WARNING SYSTEM TURN KEY TYPE...
Page 52: ...20 WATER TEMP WARNING SYSTEM TURN KEY TYPE...
Page 53: ...21 ENGINE STOP SYSTEM TURN KEY TYPE...
Page 63: ...31 ENGINE PART LIST TYPE HB29D1 HB36D1...