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Re: Vacuum Advance

To: mgs <mgs@autox.team.net>
Subject: Re: Vacuum Advance
From: Bullwinkle <yd3@nvc.net>
Date: Thu, 01 Feb 2001 22:03:57 -0800
I've got a Datsun pickup that does the same thing.  Datsun has
never been shy about copying/licensing other designs.  The carb
is listed as a DCR342-14 with #105 main jet, #156 Secondary, #80
and #60 air bleeds, #47 and #100 slod jet, and #40 for a power
valve.  Does this sound like Weber items?

> has a slight "stumble" just as you describe.  It only happens when
> you are in a cruise in straight and level flight then accelerate just
> slightly.  There is a little lag before the bite.  I have been told that
> the problem with the 308 is that there is a little play in the linkage
> for the accelerator pump.  It doesn't cause a problem when you
> stomp on it but when you ease the throttle open, the mixture goes
> a little lean as the pump doesn't engage on time.  Does any of this
> make sense?  Applicable to the Weber DGV?
> 
> Rick
> 
> Charley & Peggy Robinson wrote:
> 
> > All,
> >
> >   I wonder if the difference in how the vacuum diaphragm is used on a
> > particular engine (or FWT) could explain why some people install a Weber
> > conversion and get a stumble, while others have no problem with the
> > installation.  Next time I make a club meeting I'm going to ask about
> > that.
> >
> >   Cheers,
> >
> >   CR
> 
> --
> Rick Lindsay
> Diamond Geoscience Research
> 5727 S. Lewis Ave., Tulsa, OK
> Voice: +1 918-747-3456
> Fax: +1 918-747-8599

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