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Moving the Racor filter

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Wayne's World View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wayne's World Quote  Post ReplyReply Direct Link To This Post Posted: 06 May 2019 at 11:37
Boomjack,

I think any of the well know fuel biocides/treatments will work for you it is a matter of which one is easiest to buy. I usually buy enough for the season. The instructions generally say to double dose the fuel tanks initially and then use the standard/maintenance ratio every time you add fuel. I also tend to double dose the tanks for winter. 

I fitted the pre pre filter per the attached photos in the centre bilge where the fuel tank changeover valve is. The Filter was made and supplied by a UK company called Fuel Guard. The model is FDG110 which suites engines upto 150hp. They supply a kit which includes a fuel polishing pump and it also includes all the pipe fittings your need to fit the filter. The small black box next to the filter in the photo is the water alarm.I have not fitted the fuel polishing pump as yet.Their website is www.fuel-guard.co.uk
There is a knurled knob at the bottom of the filter where you drain any water out of the filter. I find it just as easy to bleed all the fuel out, after turning off all the return fuel valves and putting the tank selector valve into the centre position, then removed the see thru bowl and carefully clean the filter membrane with a small paint brush. Reassemble the filter turn all the valves back on and then use the on engine electric fuel pump button to suck fuel through the system and the air out. Test start the engine and run to make sure you have no leaks and the air is out of the system.  

Hope this helps.

  


Wayne W
Cruising, currently in the Caribbean and will head across the Pacific early 2024
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Black Diamond Quote  Post ReplyReply Direct Link To This Post Posted: 06 May 2019 at 15:48
Is this the original location for your filter?      Mine seems to be further back towards the engine.     I could simply relocate a new single bowl, clear bottom,  filter where you have it,  but I'd have to see if that is worth the effort.


Rick
S/V Black Diamond
Hanse 575 Build #192, Hull# 161
Newport, RI
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Wayne's World View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wayne's World Quote  Post ReplyReply Direct Link To This Post Posted: 06 May 2019 at 16:27
Rick,

No this is an additional pre-prefilter. I left the original prefilter in place. This has a 30 micron cleanable filter and water trap. The original prefilter is, I think 10 micron, disposable filter and has a water trap which is fitted in the normal place just aft and on the stbd side of the bilge in front of the engine bay. This is also has the sump and sump pump for the aft showers is located.This Volvo prefilter and the on engine final fuel filter both have water alarms which alarm on the Volvo engine start panel. 

I chose to fit this third filter because it is easier to access and check, has a cleanable filter and gives another layer of protection from contamination. This pre-prefilter should take the major load of any contamination before it gets to the Volvo supplied prefilter. I therefore only change the Volvo supplied prefilter once a year rather than the 200 hrs suggested change period.
  
I tried to get a clear replacement bowl for the Volvo prefilter whilst in Greece but it turned out to be easier to buy an additional filter with a clear bowl with the added benefit of improving the filtration and water separation.
Wayne W
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Black Diamond Quote  Post ReplyReply Direct Link To This Post Posted: 06 May 2019 at 17:52
Wayne,

A skillful compromise.      It at least moves the water separation problem forward to the new, transparent bowl, filter.   Especially since I'm struggling with the room for the dual racor setup.

One question:    why did you use a 30micron filter and not move something like a 10micron there and reduce to a 5micron for the original HANSE installed filter?    

Rick
S/V Black Diamond
Hanse 575 Build #192, Hull# 161
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boomjack View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote boomjack Quote  Post ReplyReply Direct Link To This Post Posted: 06 May 2019 at 17:53
Hi Wayne,

Thank you very much for your pictures, I see exactly where I will install it and I believe your concept is excellent.
I'm sure it will avoid all these "water in fuel" alarms and risks of engine switch off....


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Wayne's World Quote  Post ReplyReply Direct Link To This Post Posted: 06 May 2019 at 18:45
Rick,

The Fuel Guard unit with the 30 micro cleanable filter was the only one I could find with the clear bowl and cleanable filter. I like the idea of being able to clean the filter easily and not need to carry more disposable filters. Having the 30 micron, 10 micron and the 2 micron filters gives a bigger area of filtration. If I used a 10 micron as the pre prefilter it could potential get blocked by and stop the fuel flow. 

On a previous boat we had fuel polishing and filter unit (about the size of a household garbage bin), duplex prefilters and duplex final (on engine) filters. We could also pump fuel from the bottom of each of 4 tanks and look at the fuel to check if it was visibly clean. We also always treated fuel as it came onboard. The duplex ( twin switchable filters) are good but you need to able to see the pressure gauges to see if the filters are becoming blocked before changing over. These duplex units are expensive and as you have discovered fairly big to try and fit somewhere accessible.   

For our size engines, fuel flow and available space I like the Fuel Guard unit is about right. If we are about to do a long period of motoring I can easily check the clear bowl before we leave and also check it during travelling. The only thing I would be tempted to add would be bypass valves so the 30 micron filter could be bypassed if it became very dirty and I didn't have time to clean it. But I think with our normal fuel procedures and filtration I think that would be unlikely. 

I will definitely be fitting the fuel polishing unit which came with the Fuel Guard filter and will plumb this so I can use it to pump from the stbd fuel tank to the port tank which at the moment we can't do. A job  for another time.    

Wayne W
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Relentless Quote  Post ReplyReply Direct Link To This Post Posted: 20 May 2019 at 15:45
So much great info here!   Thank you all for responding.
 
Here is what I did.  I left the filter in the same location, but raised it about 2".  This provided more clearance below for a cup to drain into.  I also added a small ball valve with a couple 90 degree elbows so it is very easy to dispense the fuel without any tools.  This section of the floor will remain unscrewed so that I can easily lift the entire floor panel away.
 
This was a very easy solution that only took about 1 beer to complete.  Hopefully I won't need to do anything else.  
 
Thanks again!


Edited by Relentless - 20 May 2019 at 15:53
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yacht1255 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote yacht1255 Quote  Post ReplyReply Direct Link To This Post Posted: 19 June 2019 at 11:30
I think the idea is not very
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