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Diesel Engine Fuel Injectors Idea
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Posted by: matin

06/17/2006, 13:35:48

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We have in our facility Wartsila SW 18 V 38 series engine running on heavy fuel at 18cST 450 bar injection pressure and using 11 hole nozzle we are experiencing a very strange problem.The nozzle gets choked and get blocks after a period of some days of operation as a result we get valve to valve difference high indication at exhaust and as a consequence we have to change the injector.The fuel is processed as per standard and it passes through a long series of filters but still the problems keeps on popping up.What could be the reason??????????????







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Re: Diesel Engine Fuel Injectors Idea
Re: Diesel Engine Fuel Injectors -- matin Post Reply Top of thread Forum
Posted by: matin

06/18/2006, 03:22:29

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Well the fuel does get prcoessed through centrifugal filters and the water content after centrifugal filter is between in the range of 0.2-0.25 percent.I will inquire about the micron size and would let you know







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Re: Re: Diesel Engine Fuel Injectors
Re: Re: Diesel Engine Fuel Injectors -- matin Post Reply Top of thread Forum
Posted by: randykimball
Barney
06/18/2006, 17:18:55

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No need to let me know, they are not my units. What you do need to do is be sure the filter micron size is smaller than the nozel holes!!




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Re: Diesel Engine Fuel Injectors
Re: Diesel Engine Fuel Injectors -- matin Post Reply Top of thread Forum
Posted by: randykimball
Barney
06/17/2006, 23:52:31

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Your fuel is filtered to what micro?

Your piping is made of what material?

I think either your pipes are depositing materials into your fuel or your filters are not fine micro enough. Are you putting your fuel through a centrifuge to remove foreign matter and moisture? Moisture in fuel can cause all kinds of wierd things to happen.





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