I saw a pic of the return springs in e-bay;
http://cgi.ebay.com/ebaymotors/aw-cgi/eBayISAPI.dll?ViewItem&item=593967718&r=0&t=0&showTutorial=0&ed=997291085&indexURL=0&rd=1
Toshi 66-1600
Robert.Long@CSDInc.com wrote:
> I'm currently using Automatic Transmission Fluid in the dampner pots
>
> Does anyone have a pic of the return springs on their SUs, I'm curious
> if mine are stock or not.
>
> Robert- 67.5 1600 - Abq
>
> -----Original Message-----
> From: Fred_Katz@ci.sf.ca.us [mailto:Fred_Katz@ci.sf.ca.us]
> Sent: Monday, August 13, 2001 2:28 PM
> To: datsun-roadsters@autox.team.net; Robert.Long@CSDInc.com
> Subject: Re[2]: starting problems solved!
>
> I'm only guessing here so experimentation is in order. The viscosity of oil
> thins out in higher temperatures (summer). So maybe the resistance of the
> SU pistons, against rising, is less in summer heat. And when you are coming
> to a stop, there may be a tendency for the floats to rise in the fuel
> bowls, allowing more fuel to stream into the fuel bowls and this
> temporarily increases the flow of fuel into the carbs. That extra fuel may
> be putting some upward pressure on the needles.
>
> Perhaps you need to experiment with thicker viscosity oil in the SU dampner
> pots, so you get more resistance to piston rise in the SU carbs. Again,
> just a guess. I would still clean up the carb linkage and check the
> throttle shafts & plates for binding.
>
> Fred - So.SF
>
> >Author: Robert.Long@CSDInc.com
> >Date: 8/13/2001 2:11 PM
> >
> >-----Original Message-----
> >From: Hoon Kim [mailto:hoon@pixar.com] Sent: Monday, August 13, 2001
> >12:26 PM To: datsun roadster mailist
> >Subject: starting problems solved!
> >
> ><snip>
> >>> I noticed that when coming to a stop, almost always my
> >>> idle rides really high (about 500 rev higher), and I have to tap
> >my >> foot on the gas to have it come back down. Could this be caused
> >by >> gunk, either around the pedal or the throttle cable?
> >
> >I seem to have the same problem on my 67.5 1600 with SUs. I have it
> >idling nicely at 750 RPMs, but have to tap the pedal after I stop to
> >get the RPMs back down. It seems to do this more in summer than other
> >times of the year. I'm looking for suggestions too...
> >
> >Robert - 67.5 1600 - ABQ
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