Sounds like you have the evap fuel setup. From what I've seen removing it
would be a chore. Plus it doesn't cause any problems. I'd just leave it
alone.
The 'fuel return valve' is basically a simple pressure regulator. The
Roadsters have a continuous flow fuel system. Gas circulates constantly
allowing the carbs to take whatever they need. This valve maintains a
pressure of around 3 lbs on the carbs and allows the rest to return to the
tank. This is one reason the Roadsters don't vapor lock. I've driven mine
in the Arizona desert in the dead of summer and never had a problem. I've
heard claims of vapor lock but have never witnessed it personally.
Best regards,
Fred Schroeder
Denison, TX
SRL311-13359
TDROC
Reg e-mail sitsinwest@texoma.net
Home page http://home.texoma.net/~sitsinwest
----- Original Message -----
From: "Brad Holmes" <bholmes@monk.aum.edu>
To: <datsun-roadsters@autox.team.net>
Sent: Friday, August 16, 2002 8:44 AM
Subject: SUs & smog
> Since were on SUs, I recently bought a 70 - 2000 California car that
> has been de-smogged. The PO or the pre-PO has removed much of the
> devices and plugged ports and did a recurve. There are still a bunch
> of lines running around, to and from the tank. A couple questions.
> 1. Can ALL the rest of the smog equipment also be removed and lines
> and ports plugged, on the tank and in the engine room?
> 2. Can the vent on the dip stick be capped off?
> 3. What is/was the purpose of the "valve, fuel return assy, rear"
> next to the rear SU? (F8B-1, item 119, top left of the pic in the
> parts manual) http://www.gordon-glasgow.org/Images/8B.gif
> Can the valve be removed and a regular fitting be installed?
>
> Thanks
> Brad Holmes
> 68 - 2k, Solex
> 70 - 2k, SU
> SEROC
> OROC
>
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