tpi for an early jaguar

[Romans, Mark]

DON'T use the vent lines for return!  They barely work as vents!
If you like driving a Molotov Cocktail go ahead.
I had problems just keeping the vent lines on as vents on my
74XJ12L!
Please figure something else out!  Like maybe pulling a set of
factory return lines of a later MY jag.
Mark
----- Original Message -----
From: "Diane Stowe" <DianeS at speakeasy.org>
To: <gmecm at diy-efi.org>
Sent: Thursday, December 07, 2000 10:15 PM
Subject: Re: tpi for an early jaguar


> 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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