Adding a gas tank return

[Shannen Durphey]

BTDT (retrofit), at least a couple of times.
1st time, added 3/8 line to sender for fuel supply, used OEM 5/16" line for
return.  Vent line added to filler neck.

Second time used tank in middle 80's truck as-is.

OEM return below fuel level?  Unless I'm missing something, that's-a no
problem.  If above, nothing wrong with removing sender and extending the line
with some soldered on tubing.

Vent is tricky.  Since it's a smogger vintage tank, CCP should be ok to use. 
Old tanks w/ no baffles burp fuel if the vent's not right.

If there's more to this story than it seems, let me know.  
Shannen


Bruce wrote:
> 
> 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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