TPD1397EID Chapter 6
65
List of possible causes
1. Battery capacity low.
2. Bad electrical connections.
3. Fault in starter motor.
4. Wrong grade of lubricating oil.
5. Starter motor turns engine too slowly.
6. Fuel tank empty.
7. Fault in stop solenoid, contacts or cables.
8. Restriction in a fuel pipe.
9. Fault in fuel lift pump.
10. Dirty fuel lter element.
11. Restriction in air induction system.
12. Air in fuel system.
13. Faulty atomisers or atomisers of an incorrect type.
14. Cold start system used incorrectly.
15. Fault in cold start system.
16. Restriction in fuel tank vent.
17. Wrong type or grade of fuel used.
18. Restricted movement of engine speed control.
19. Restriction in exhaust pipe.
20. Engine temperature is too high.
21. Engine temperature is too low.
22. Incorrect valve tip clearances.
23. Too much oil or oil of wrong type is used in wet type air
cleaner, if one is tted.
24. Not enough lubricating oil in sump.
25. Defective gauge.
26. Dirty lubricating oil lter element.
27. Fan damaged.
28. Fault in engine mounting or ywheel housing.
29. Too much lubricating oil in sump.
30. Restriction in air or water passages of radiator.
31. Restriction in breather pipe.
32. Insufcient coolant in system.
33. Vacuum pipe leaks or fault in exhauster.
34. Fault in fuel injection pump.
35. Broken drive on fuel injection pump.
36. Timing of fuel injection pump is incorrect.
37. Valve timing is incorrect.
38. Bad compression.
39. Cylinder head gasket leaks.
40. Valves are not free.
41. Wrong high-pressure pipes tted.
42. Worn cylinder bores.
43. Leakage between valves and seats.
44. Piston rings are not free or they are worn or broken.
45. Valve stems and/or guides are worn.
46. Crankshaft bearings are worn or damaged.
47. Lubricating oil pump is worn.
48. Relief valve does not close.
49. Relief valve does not open.
50. Relief valve spring is broken.
51. Fault in suction pipe of lubricating oil pump.
52. Piston is damaged.
53. Piston height is incorrect.
54. Flywheel housing or ywheel is not aligned correctly.
55. Fault in thermostat or thermostat is of an incorrect type.
56. Restriction in coolant passages.
57. Fault in water pump.
58. Valve stem seal is damaged.
59. Restriction in sump strainer.
60. Valve spring is broken.
61. Breather assembly worn or broken.
62. Vent hole for breather valve is restricted.
63. Leakage in the induction system (naturally aspirated and
turbocharged engines).
64. Spare.
65. Drive belt for water pump is loose.
66. Restriction in the sea cock or the raw water strainer.
67. Insufcient coolant in circuit.
68. Restriction in the heat exchanger or the oil cooler.
69. Fault in raw water pump.
70. Movement of control lever of reverse gearbox is not equal in
both directions.
71. Insufcient movement of control cable for reverse gearbox.
72. Control cable for reverse gearbox is not free, radii are too
small or cable is broken.
73. Wrong type of lubricating oil in reverse gearbox.
74. A lubricating oil cooler is needed for the reverse gearbox for
conditions of operation.
75. Worn or broken drive components.
76. Incorrect size of propeller or not correctly matched.
77. Propeller damaged.
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