38 DIESEL ENGINE
POSSIBLE CAUSE
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Check and clean injection nozzles, being careful not to damage the orifice.
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Replace injection nozzle(s) if not working properly after cleaning.
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Check valves for leakage – grind valves to correct.
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Check for bad valves, piston wear, ring damage or wear, or liner wear.
Have parts replaced.
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Check and service fuel system
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Check for and repair leaks. Fill to correct oil level.
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Check for clogged oil filter and replace.
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Check oil pump and lubrication system.
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Check to see if engine bearing clearance is within specifications.
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Follow oil and filter service instructions to prevent future occurrences.
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Proper injection timing (crank angle before top dead center)
- Model 3CO93: 22
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- Model 3CO93G: 24
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- Models 3A139, 3A165, 4A200, 4A220: 18
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- Models TD1300, TD1400, TD1700: 20
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- Model 4A200T, 4A220T: 12
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Check and adjust valve clearance when the engine is cold.
- Models 3CO93, 3CO93G, TD1300, TD1400, TD1700: intake 0.1mm, exhaust 0.1mm
- Models 3A139, 3A165, 4A200, 4A220: intake 0.25 mm, exhaust 0.30 mm
- Model 4A200T, 4A220T: intake 0.15mm, exhaust 0.15 mm
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Clean or replace the element every 100hours of operation.
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Check the injection pump and valve assembly. Replace as required.
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NOTE: Poor quality fuel or improper fuels will accelerate injection pump wear.
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Adjust to proper pressure 140~150 kgf/cm
2
(13.73~14.7Mpa, 1991~2133psi)
Clogged or faulty fuel injector
Low compression
Insufficient fuel flow
Seizure of moving parts
Incorrect fuel injection timing
Improper valve clearance
Dirty air cleaner
Fuel injection pump wear
PROBLEM: LOW ENGINE POWER OUTPUT
CORRECTIVE ACTIONS
Summary of Contents for ?A165
Page 4: ......
Page 5: ...1 SAFETY INSTRUCTIONS...
Page 9: ...2 NAMES OF PARTS...
Page 16: ......
Page 17: ...4 BREAK IN AND CHECKS DAILY CHECKS 18 BREAK IN 18 PERIODIC CHECKS 19...
Page 20: ......
Page 35: ...6 TROUBLESHOOTING...
Page 41: ...7 WIRING DIAGRAMS...
Page 42: ...42 DIESEL ENGINE 379O701A 3C093 SERIES...
Page 43: ...WIRING DIAGRAMS 43 379O702A TD1300 TD1400 TD1700 3A139 3A165 4A200T 4A220 4A220T...
Page 44: ......
Page 45: ...8 SPECIFICATIONS...
Page 46: ......
Page 49: ...9 INDEX...