62
Symptoms and possible causes
Starter motor does not rotate when cranking 1,2,3,4,6,7,49
Starter motor rotates slowly when cranking 1,2,15,42
Engine does not start 5,13,14,16,17,19
Engine starts but stops again 5,13,14,16,17,19,44,45
Engine does not reach correct operating speed 5,11,12,13,14,15,16,17,18,19,20,24,27
29,43
Engine runs unevenly 5,9,10,16,17,19,20,44
Engine knocks 14,20,45
Engine vibrates 10,16,24,25,30
Engine can not be stopped 1,2,3,4,46
High fuel consumption 8,10,12,13,14,19,21,24
Black or Dark gray exhaust smoke 8,10,11,12,13,14,19,21
Blue or white exhaust smoke 10,12,13,14,15,21,24,37,38,44
High lubrication oil consumption 15,23,24,25,38
Lubrication oil pressure too low 15,22,26,39,40
Coolant temperature too high 27,28,31,32,33,34,35,36,37,47
Coolant temperature too low 36
No charge or poor charge 1,2,41
A number of symptoms and possible causes for engine disturbances are described in the table below. If faults or
hitches arise that you cannot solve alone, you must always get in touch with your Volvo Penta dealer.
WARNING! Read the safety directions for maintenance and service in the chapter “Safety information”
before starting any work.
IMPORTANT! Handle parts carefully. Only use original Volvo Penta spare parts.
NOTE! Dust and foreign particles are the most common cause of excessive wear of parts. When disassembling a
component, take measures to prevent dust and foreign particles from entering it.
NOTE! If the engine won’t start, make sure the emergency stop button is reset
Troubleshooting
1. Flat batteries
2. Poor contact/broken cables
3. Main switch turned off
4. A fuse/circuit breaker has blown/tripped
5. Lack of fuel
6. Defective Power Module
7. Faulty starter motor/solenoid
8. Defective fuel supply pump
9. Blocked fuel injectors
10. Defective fuel injectors
11. Incorrect valve clearance
12. Incorrect fuel injection timing
13. Low compression pressure
14. Improper fuel oil
15. Improper lubrication oil
16. Air in fuel system
17. Water/contamination in fuel
18. Engine speed control wrongly adjusted
19. Insufficient air supply
20. Too high coolant temperature
21. Too low coolant temperature
22. Too low lubrication oil level
23. Lubrication oil leakage
24. Worn cylinder liners and/or piston rings
25. Worn valve stem seals
26. Blocked lubrication oil filter
27. Radiator blocked
28. Blocked heat exchanger insert
29. Blocked aircooler
30. Faulty engine mounting
31. Too low coolant level
32. Air in fresh water system
33. Blocked sea water inlet/pipe/filter
34. Defective impeller in seawater pump
35. Circulation pump drive belt slips
36. Defective fresh water pump
37. Defective/wrong thermostat
38. Too high lubrication oil level
39. Defective lubrication oil pump
40. Defective relief valve
41. Alternator drive belt slips
42. Defective bearings/abnormal cylinder friction
43. High back pressure in exhaust system
44. Very cold engine and lubrication oil
45. Abnormal load
46. Engine consume lubrication oil or combus-
tible gas
47. Cylinder liner have scalings or such that
reduce cooling effect
48. Alternator/Rectifier broken
49. Water entry into engine
To Next Page
Loading...
Need help?
General