Chapter 6 TPD1327E
Page 48
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 control.
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. Fault in 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. Not enough lubricating oil in sump.
23. Defective gauge.
24. Dirty lubricating oil lter element.
25. Fault in engine mounting or ywheel housing.
26. Too much lubricating oil in sump.
27. Restriction in breather system.
28. Restriction in seacock or raw water strainer.
29. Insufcient coolant in circuit.
30. Restriction in heat exchanger or oil coolers.
31. Drive belt for water pump is loose.
32. Fault in fuel injection pump.
33. Broken drive on fuel injection pump.
34. Timing of fuel injection pump is incorrect.
35. Valve tip clearances are incorrect.
36. Valve timing is incorrect.
37. Insufcient compression.
38. Cylinder head gasket leaks.
39. Valves are not free.
40. Wrong high-pressure pipes.
41. Worn cylinder bores.
42. Leakage between valves and seats.
43. Piston rings are not free or they are worn or
broken.
44. Valve stems and/or guides are worn.
45. Crankshaft bearings are worn or damaged.
46. Lubricating oil pump is worn.
47. Relief valve does not close.
48. Relief valve does not open.
49. Relief valve spring is broken.
50. Fault in suction pipe of lubricating oil pump.
51. Piston is damaged.
52. Piston height is incorrect.
53. Flywheel housing or ywheel is not aligned
correctly.
54. Fault in thermostat or thermostat is of an
incorrect type.
55. Restriction in coolant passages.
56. Fault in water pump.
57. Valve stem seal is damaged.
58. Restriction in sump strainer.
59. Valve spring is broken.
60. Turbocharger impeller is damaged or dirty.
61. Lubricating oil seal of turbocharger leaks.
62. Induction system leaks (turbocharged engines).
63. Fault in raw water pump.
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