adding fuel return to tank

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   I need to add a fuel return fitting to the plastic tank of my '93 SN.  Has anyone done this successfully and, if so, how?

My thoughts:

1.  Replace the vent elbow with a "T" fitting so the fuel return would dump in where the vent is located.  My concern is that the returning fuel would block the vent from working or dump fuel overboard.  I know when the engine is shut off, the vent would do its job.  The engine is off often, so I believe pressures would be equalized often enough to avoid problems.

2.  Find or make a fitting than can be spliced into the filler neck hose.  Such as a stainless steel pipe with a fitting welded into the side.

3.  Tap the top of the fuel sending unit and add a barbed niple.  Has anone done this and is there enought room on the sending unit flange?

Any other ideas?

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David F Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum Member Joined: June-11-2004 Location: United States Status: Offline Points: 1770	Post Options Post Reply Quote David F Report Post Thanks(0) Quote Reply Topic: adding fuel return to tank Posted: October-11-2004 at 2:15pm
	I need to add a fuel return fitting to the plastic tank of my '93 SN. Has anyone done this successfully and, if so, how? My thoughts: 1. Replace the vent elbow with a "T" fitting so the fuel return would dump in where the vent is located. My concern is that the returning fuel would block the vent from working or dump fuel overboard. I know when the engine is shut off, the vent would do its job. The engine is off often, so I believe pressures would be equalized often enough to avoid problems. 2. Find or make a fitting than can be spliced into the filler neck hose. Such as a stainless steel pipe with a fitting welded into the side. 3. Tap the top of the fuel sending unit and add a barbed niple. Has anone done this and is there enought room on the sending unit flange? Any other ideas?

Rick Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: March-03-2004 Location: United States Status: Offline Points: 338	Post Options Post Reply Quote Rick Report Post Thanks(0) Quote Reply Posted: October-11-2004 at 10:40pm
	I like the t in the vent especially if you put a fuel vapor seperator in line above the T.
	2000 Ski

David F Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum Member Joined: June-11-2004 Location: United States Status: Offline Points: 1770	Post Options Post Reply Quote David F Report Post Thanks(0) Quote Reply Posted: October-12-2004 at 11:43am
	Rick: OK, I like this idea best as well. However, can you enlighten me on what a fuel vapor seperator is or where I can see the specs on one. Thanks

Rick Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: March-03-2004 Location: United States Status: Offline Points: 338	Post Options Post Reply Quote Rick Report Post Thanks(0) Quote Reply Posted: October-12-2004 at 2:02pm
	here is a link http://www.skidim.com/prodinfo.asp?number=LG-50&variation=&aitem=25&mitem=53 from SKIDIM
	2000 Ski

workky Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Senior Member Joined: June-26-2004 Location: Marietta,Ga Status: Offline Points: 206	Post Options Post Reply Quote workky Report Post Thanks(0) Quote Reply Posted: October-12-2004 at 5:19pm
	I take it you need a return line for an electric fuel pump.If so what kind of fuel pump are you running?I converted my 84 2001 to a marine holley pro-jection.I had to run a return line in mine as well.

David F Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum Member Joined: June-11-2004 Location: United States Status: Offline Points: 1770	Post Options Post Reply Quote David F Report Post Thanks(0) Quote Reply Posted: October-12-2004 at 5:52pm
	Well, yes I need the return line due to an electric fuel pump. However, the pump is the result of swapping in a complete (low hour) '95 PCM "Pro Ski" throttle body electronic fuel injected engine/tranny. How did you add the return line to your tank. Does a '84 have an aluminum or plastic tank?

workky Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Senior Member Joined: June-26-2004 Location: Marietta,Ga Status: Offline Points: 206	Post Options Post Reply Quote workky Report Post Thanks(0) Quote Reply Posted: October-13-2004 at 2:19am
	Mine has an aliminum tank so it was fairly simple.I pulled out my sending unit and drilled a hole in it,tapped it and ran an elbow in it.There isnt a lot of room for error,but if i screwed up i could just replace the sending unit.What's wrong with the power plant thats in there now?

workky Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Senior Member Joined: June-26-2004 Location: Marietta,Ga Status: Offline Points: 206	Post Options Post Reply Quote workky Report Post Thanks(0) Quote Reply Posted: October-13-2004 at 2:21am
	I tried what u described with the tank vent and it worked,i did it just as a testing thing ,making sure i could get the fuel injection to work.I felt a little better with it running to the tank

adding fuel return to tank

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