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View Poll Results: What kind of fuel return system do you have?
No fuel return at all 11 84.62%
I have one and use it for purging air, but otherwise leave it off 1 7.69%
I have one that is always on 1 7.69%
Voters: 13. You may not vote on this poll

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  #1   IP: 138.207.177.95
Old 05-05-2022, 11:30 AM
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Fuel Return System

I am curious who else has set up some kind of fuel return line.
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  #2   IP: 138.207.177.95
Old 05-05-2022, 11:34 AM
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My system has a valve in the return line that is cracked just a very tiny bit. I got the idea from my friend's 69 Corvette that has a tiny pinhole washer that controls fuel return after the mechanical pump.
It has totally eliminated a vapor-lock issue I was having and also makes priming a new filter easier.
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  #3   IP: 104.174.83.118
Old 05-05-2022, 04:38 PM
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I do (but you knew I would). I use it for carb priming, new filter purging, fuel polishing, fuel transfer from one tank to the other, fuel tank emptying and finally as a fuel shut-off immediately ahead of the carburetor.
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  #4   IP: 137.200.32.22
Old 05-09-2022, 11:12 AM
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Looks like only the two of us. I wish I had done it years ago, the "get the air out of the filter boogie" thing is only a trivial issue now.
I have given some though to getting one of those Facet pumps that shuts the fuel flow off when not energized to only let fuel recirculate when needed, but so far the simple valve arrangement is doing the trick.
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Old 05-09-2022, 05:12 PM
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Y'know Joe, I don't get it. Since installing my system it has been a G-R-E-A-T improvement to fuel management for all the reasons I listed earlier yet it has elicited barely a yawn on the forum.

Oh well, I've got mine and enjoy the benefits.
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prior boats 1987 Westsail 32, 1970 Catalina 22
Had my hands in a few others
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  #6   IP: 207.134.249.157
Old 08-29-2022, 11:14 AM
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Very curious!!

Good day and thank you for reading,

I am very curious about the material used for the return line!! Are you using standard 1/4 fuel line for the return?? I see you can feed from either tank but only return to the 12 gal tank. I suspect you have to be cognizant of not drawing fuel from the 25gal tank when the 12 gal tank is full??? Also do you leave the return slightly open to prevent air from building up in the fuel line at the carb or do you keep it closed?? Also can you keep both fuel tanks open and draw from both at the same time?? Also the fuel tank fitting for the return… is that going through the inspection port cover or did you put it through the tank itself??

I am noticing on my northern 29, after motoring for three or four hours the fuel pressure warning will go off. If I go to full throttle for a 30 seconds or so the warning will go away and I’m good for another hour or so before I have to repeat.

Clearly I am sucking air from somewhere but I have resealed and dressed all my fittings and barbs. I was thinking of clearing out the fuel lines and doing a positive pressure check to see if I can find the leaky fitting. Thinking that adding a return line may help with the buildup of air.

My plan for the future is to replace my 12 gal with a 19 gal moeller tank. If that works as planned I would then like to install a second 19 gal tank in the opposite locker. Currently with the 12 I keep two Jerry’s on deck to supplement. On Georgian Bay I always seem to be motoring directly into a headwind or at best motor sailing. It is interesting how quickly 12 hours of gas disappears when you are trying to get somewhere. A dual tank system like this I think would take a lot of my worry out of the equation and remove the need to haul Jerry’s on deck.

Thanks for any info.

Best regards,

Bryan
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