Sunday, November 29, 2015
Friday, November 13, 2015
In a very good day, you happily move to the generator or your marine diesel engine for starting process. Lets say you have blown through the generator by air or hand tuning and when you start it, there came a loud sound like “tat.. tat.. tat.. .” Probably very afraid, thinking it is a crankcase explosion... Thank God it was not. Suddenly realization dawns; you saw safety valve that has lifted. It lifted because there is an uncontrolled combustion inside the cylinder which can be due to the following:
A. Defective fuel oil valves.
B. Wrong fuel pumps timings.
C. Engine is over cooled.
D. Dripping fuel injectors.
E. Fuel linkage problems or fuel rack stuck in maximum position.
F. The opening pressure of the safety valve is low caused by a broken spring or a loosened nut.
Actually, on the modern engines, some other safety measures has been put in place to manage such conditions. We will discuss that in the next article. Subscribe with us for more.
Thursday, November 12, 2015
On this article, I will like to briefly explain the various causes of Marine Auxiliary engine problems. I hope it would prove beneficial for junior engineers as well as practicing marine engineers.
THE DEFINITION OF MARINE AUXILIARY ENGINE!!
Marine auxiliary diesel engines are used for the production of electricity on board merchant or offshore ships. They are called auxiliary because the main diesel engines are used for the propulsion of the ship. The auxiliary engines are generally four stroke diesel engines. It could be air or battery starting... It doesn't matter.
Lets say you come on your normal watch and find out that the Chief Engr or second Engr has written a note instructing you to change over the generators because the 250 - 500 hour routine of the running generator is due..After you take a round, check the various parameters of the running machineries and then go to the generator platform. After checking the level of the oil and opening all the valves you blow through the engine and then close the indicator cock ( if Available) . Now you give it an air or battery kick and engine keep turning but the engine does not pick up. You try again and the same result. Now need to troubleshoot.
The Troubleshooting Marine Auxiliary Diesel Engines (Engine turning but can't start).
Below are the areas you most troubleshoot :
1. Fuel does not reach the fuel injection pump because there is air in the system.
2. The fuel oil filters are choked.
3. The fuel line valve is not open.
4. The trips have been not reset after the last stopping.
5. Fuel oil service tank is at low level. Beware the other generator is also going to stop.
6. There is water in the line.
7. The fuel valves are faulty and not giving proper atomization or are choked.
8. The fuel pump timing is wrong.
9. Leaking fuel injection pipes.
10. Seized plungers of the fuel pumps.
11. Fuel rack linkage stuck in position.
12. Seized delivery valves or broken plunger springs in injection pump.
13. The engine is cold.
If you check all the above mentioned, and still not to start, you need to check the electrical side (E.g the governor connection).
There are other problems that can cause not starting... We shall discuss that in the next article. Subscribe with us and stay tuned.
Friday, November 6, 2015
If you are a seafarer, you will note that being at sea is the most difficult time, in the terms of missing your Family and friends. Sometime you won't communicate with them for months.
The above reason makes most of the seafarers during there sign off time, they don't even remember to collect all there documents or the required information they will need in the next sea sign on.
Please we urge you all, to always pay good attention during sign off and pick all required by you.
Happy weekend to all our blog readers...
⚓Anchor with us, for more posts⚓
Maritime or shipping service, has created a lots of job opportunities worldwide. Today, because of world crisis, the shipping companies have...
FEMALE DECK OFFICER Maritime career been a profession in which everyone must attend exams to move to the upper rank, you need to always...
In shipping industries, crews onborad are not allow to bring their family (wife) onboard due to some certain reason, but in the other ha...
To become a seafarer is very easy and also can be very difficult. On this article i will like to list the first steps of any seafarer who ...
On this article we are going to look into the difficulties which the Nigerian seafarers are facing in regards of the salaries and jobs. ...