[urq] Ideas for rough running continued - Solved?

[Ed Kellock]

Thanks Ingo and Frank.  My tach definitely drops to zero due to no
signal.  I believe that means ignition and it seems the email below
confirms this from both of your perspectives also.

Following up on Ben's note about the idle switch: mine does click when
the throttle is closed.  I will check resistance on it shortly.
Should it be adjusted so it clicks ~just~ as the throttle is fully on
its stop or shortly before?

I'm also going to pull the igloo and check for binding of the metering
plate.

Thanks!
Ed

----- Original Message ----- 
From: "Ingo Rautenberg" <i.rautenberg at waratap.com>
To: "UrqList" <urq at audifans.com>
Sent: Saturday, April 09, 2005 9:33 AM
Subject: Re: [urq] Ideas for rough running continued - Solved?


> For Ed,
>
> Frank de Kat sent me this:
>
> ----- Original Message ----- 
> From: "Frank de Kat" <fdekat at sentex.net>
> To: "Ingo Rautenberg" <i.rautenberg at waratap.com>
> Sent: Thursday, April 07, 2005 6:32 PM
> Subject: Re: [urq] Ideas for rough running continued - Solved?
>
>
> > Hello Ingo:
> >
> > At 04:35 PM 4/7/05, you wrote:
> >
> > >Ah, but it all depends on whether the car is in gear, no?
> >
> >
> > I beg to disagree (But I  think I see what you are getting at!)
> >
> > >If the tach drops
> > >to zero and the car dies one can assume it's either fuel or
ignition.
> >
> > Noo... Tach will only go "all the way to zero" if there's an
electrical
> > problem.
> >
> > But I may see the crux of your logic:  IF the motor is already
going very
> > slow (idle), and the fuel cuts out, the tach will get pretty close
to
> zero,
> > and still be doing it's job (As the motor IS truly going pretty
slow!) and
> > be hard to tell it it's AT zero, or NEAR zero..
> >
> > So.. Perhaps to help:
> >
> > In my experience, if it's an  electrical problem and ign cuts out,
the
> tach
> > will go RIGHT to zero, and perhaps violently bounce back to
indicated revs
> > when the ignition returns. Maybe a good backfire too, as the
ignition come
> > back on. (In my case, it was a VERY good backfire!)
> >
> > I'd think if it was a fueling problem, the tach MAY get close to
zero, and
> > only rise in revs again when the motor catches again.
> >
> > It would really help to absolutely verify where the fundamental
problem
> is.
> >
> > Perhaps attach a timing light to see if spark is going away when
it dies,
> > vs. fuel?
> >
> >
> > >  If
> > >the tach drops to zero and the car is in gear, then definitely an
> electrical
> > >problem.
> >
> > Agreed.
> >
> > >   I'm sorry if I didn't make that clear.  My problem would be it
> > >would run like crap (stalling), I'd depress the clutch and engine
would
> die.
> >
> >  From whatever the problem was/is, I's assume.
> >
> > No matter how you slice it though, running a urq is never
boring...
> >
> > Good luck!
> >
> >
> > Frank de Kat
> > fdekat at sentex.net
> > Dundas, Ontario, Canada
> >
> > http://www.sentex.net/~fdekat
> > (To see the "Rally Pictures")
> >
> >
>
>
> ---
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