Adding a gas tank return

[Bob Wooten]

I can tell you what I did, right or wrong.  I took my sending unit down to
my radiator guy & told him that I wanted a 1/2" output & what he did was to
take the factory unit out & put a 1/2" line in.  He had an old Power
Steering Pressure line laying around for a BMW.  I cut the flex line off if
it & took the part that most closely matched the shape of the old sending
line.  what we did then was remove the old line & put the new one in & tried
to lay it in the exact spot as the old one.  that was a mess.  ( I was
running the Carb @ the time & wanted 1/2" line) We had to put the float back
on & all that & it is still not "right"  if the tank is <1/8 & I hit a hard
corner it starves the pickup (not good).

Were I to do it again, I would pop a hole in the top of the sending unit &
run the new line down as close to the factory PU line & call it a day.  as a
matter of fact I have an NOS one here that I think I am going to do that
with to see if I cant fix that up.  I don't see any reason why it wont work,
it has worked for 25 years now with a carb, & 5 with the EFI (happy birthday
to her, happy birthday to her, happy birthday dear
franceeeeeeeeeeeeeeeeeeeeeeeeeeennnnnnnnnnnnnnnnne, happy birthday to her)

HTH's
BW

-----Original Message-----
From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]On
Behalf Of Bruce
Sent: Tuesday, December 25, 2001 5:21 PM
To: diy_efi at diy-efi.org
Subject: Adding a gas tank return



In the process of doing a EFI retrofit.
The fuel tank has 3 lines,
one out to pump
charcoal canister
fuel return

The fuel out is fine.
The pump needs a return line to the tank
we need a fuel return
and a vent line

The oem sender has a restrictor on the CCP line, and the oem return is below
the fuel level.

Has anyone dealt with a similiar situation?, and what was your answers.

Drilling into the filler neck looks like a real PITA.

Beginning to look like a tank R+R and adding bulk head AN stuff around the
sender is the only answer.
TIA
Bruce


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