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Go Back   SailNet Community > On Board > Gear & Maintenance > Engines > Diesel
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  #1  
Old 03-17-2014
skisail
 
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Diesel/Water Fuel Filter System

I have a Yanmar 4JH3-TE engine in my Ganley 41 steel yacht. Can anyone recommend a 12 volt diesel/water filtration system that I can install between my keel tank and header tank which gravity feeds the engine? The fuel pump I currently have lifts 240 litres per hour but there is no filtration system. Thanks
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Old 03-17-2014
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Re: Diesel/Water Fuel Filter System

Racor filters are the standard.

Are you looking for a specific fuel/water seperator like a centrifuge? They exist but are very rare on recreational vessels.
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Old 03-17-2014
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Talking Re: Diesel/Water Fuel Filter System

Thanks, do you know if Racor filters can handle 240 litres per hr as the one I've got (cant remember which brand) is only gravity fed so I assume a Racor filter will be the same?

A centrifuge option might be better if someone can recommend a brand to use and the name of a reasonable/reliable supplier where I could get one?

The issue is that I keep getting condensation inside the keel tank which is compromising the fuel. I want to filter it before it gets to the header tank.

Thanks
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Old 03-18-2014
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Re: Diesel/Water Fuel Filter System

It depends on exactly what's going on. For a standard recreational use take a look at Racor 75500MAXM10 . As for the gravity feed, it depends on exactly what the head is, but very few diesels have no pump, even if their primary fuel delivery is by gravity.
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Old 03-20-2014
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Re: Diesel/Water Fuel Filter System

Thank you for the advice, at lease I am going in the right direction now.
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Old 03-22-2014
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Re: Diesel/Water Fuel Filter System

Check out Filter Boss, they may have a system for you
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Old 05-06-2014
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Re: Diesel/Water Fuel Filter System

What Micron filter in the primary?
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Old 05-06-2014
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Re: Diesel/Water Fuel Filter System

Consider something simpler like a Racor RAC490RS spin on filter/ water separator. It's rated for 90 gallons per hour which should accommodate your 240 liter/hour flow. If I correctly understand what you said, you would just place the filter/water separator inline between the keel tank and the header tank; no additional pump would be required.
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Old 05-06-2014
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Re: Diesel/Water Fuel Filter System

Thanks for everybodys comments. I have installed a Racor 900FH with 12 volt heater. I wanted something that was of recognised quality, could handle a large volume, easy to source replacement filters and allows an easy visual inspection.
A filter between the keel tank and header tank will mean that most contaminants are removed early. There are now 3 filters in place before the diesel enters the Yanmar Engine. The reason for this overkill is the lack of clean diesel available once I travel to other countries.The other issue is moisture as fuel tanks sweat particularly while storing fuel for long periods of time.
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