Only the Calif. cars had the evap setup on the tank. The rest of them had
the standard equipment.
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: "Adam Bradley" <ambradley@attbi.com>
To: "Brad Holmes" <bholmes@monk.aum.edu>; <datsun-roadsters@autox.team.net>
Sent: Friday, August 16, 2002 8:34 AM
Subject: Re: SUs & smog
> The '70 has a closed fuel system. There is a small tank on the top of the
> trunk. If you remove all the lines and cap it all off you risk
> overpressurizing your fuel system, which could result in very nasty
> things. Also, it has nothing to do with smog emissions but rather with
gas
> vapors coming out your fuel tank. Leave it alone unless you're willing to
> convert ALL of that to pre-70 stuff.
>
> I'm not familiar with a vent on the dip stick. I don't have this on my
'70
> 1600. However again if you're looking to reduce weight and improve
> performance, something like that isn't going to do it. If the smog pump,
> hoses that attach directly to it, and the air injection rail are gone, you
> are pretty much de-smogged. There isn't much more to remove.
>
> One possible performance robbing "feature" on the '70 is the float bowl
> overflow to the air filter. You may want to get longer fuel hose and
route
> it to the ground rather than the air filter. There has been talk of the
> intake creating a vacuum in the float chamber, which would impact fuel
> delivery.
>
> At 07:44 AM 8/16/2002 -0600, Brad Holmes wrote:
> >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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>
> Adam Bradley
> '70 Datsun 1600 Roadster SPL311-28181
> '67 Datsun RL411 SSS sedan RL411-11321
> '66 Datsun PL411 sedan PL411-022447
> http://www.picturetrail.com/abend
>
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