tpi for an early jaguar

[Diane Stowe]

Hi, yes I have a series 1, and I am trying to figure out if I used the vent
lines on the top of the tanks for a return, if the tanks would be properly
vented.

as you probably know the jag s1 vent lines run up and down the back trunk
around the side of the rear window, then meet somewhere and run up to the
front charcoal canister. I'm sure mine are cracked anyway, which is why I
have a moderate fuel smell in the trunk. It would be real nice to use the
vent lines as return lines.

my books seem to indicate that there is some sort of small tubing going to
the area at the top of the gas tank flap, I am not sure if this is a vent or
a runoff for the tank flap.

thanks, Diane
----- Original Message -----
From: <Tedscj at aol.com>
To: <gmecm at diy-efi.org>
Sent: Thursday, December 07, 2000 7:12 PM
Subject: Re: tpi for an early jaguar


> In a message dated 12/6/00 11:56:32 PM Eastern Standard Time,
> DianeS at speakeasy.org writes:
>
> > jc whitney sells a 6 port electric fuel transfer switch, which has
inlets
> >  for 2 tanks, an output, and it does the same function for fuel return
so
> you
> >  would return fuel to the tank you are pumping from. It's about 60$
> >  thereabouts.
> >
> >  Ted, did you have to have 3 fuel pumps in your xj6 ?
> >
>
>
> I saw the six-port valve, but I got the Jag valves for practically nothing
> from the junkyard, Otherwise I would have bought it.  The six-port valve
is
> probably your best bet for simplicity's sake.  I used the fuel pump wiring
to
> activate the appropriate switches.  I ran the fuel return back to the
> ventlines that are accessible in the trunk (underneath the side panels).
> And yes, I had to use three fuel pumps.  The original gas tanks had
submerged
> fuel pumps.  Gravity and an FI pump alone will not pull the fuel out of
the
> tanks.  I needed to keep the original pumps to supply the FI pump.
> BUT, I just realized that you a Series I XJ6, don't you?  I think that
they
> use fuel tanks that are very similar to the FI XJ6s.  There is one fuel
pump
> in the trunk that is gravity fed from very large fuel lines that come from
> the bottom of the tanks (unlike my Series II tanks.)  That would make your
> job very easy as all you need to do is replace your carb pump with an FI
pump
> and keep your original fuel lines and switch (from the tanks to the FI
pump.)
> Does your Series I have the vapor return lines in the trunk?
> Ted
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