Re: 2-4kq's stumbling when cold

["Wm. Josiah Erikson" <werikson@hampshire.edu>]

It's not an Audi, but pretty close...
When I first got my '83 Quantum GL5 wagon (2144cc I-5), the vacuum advance was unhooked. It
had more power than our old '71 Volvo wagon (1.8L carbed I-4 in a 3400 pound car), but that
doesn't mean anything. I hooked up the vacuum advance line, and it made a huge difference.
    -Josiah
    '84 GTI
    '87 QSW
    http://hamp.hampshire.edu/~wje97

Todd Phenneger wrote:

> I have unplugged the Vacuum advance on some of my cars just to see what
> happened and didn't notice a real big difference!  Either they weren't
> working right or I'm blind, or they didn't make a big
> difference.....Anyhow, that car ran fine without it though.  Hmmm.
>
>         Todd Phenneger
>         1984 4000s quattro / modified/ awaiting Turbo Transplant.
>         1985 4000 quattro / Silver / Fixing it Up.
>         1987 4000cs quattro / Saphire Metallic Blue/ Girlfriend's
>         1996 A6q / Volcano / Dads Car
>    *****1985 5kt / PARTING OUT!
>
> On Fri, 29 Jan 1999, Martin Pajak wrote:
>
> >
> >
> > MHLIGGINS@aol.com wrote:
> >
> > >         The '84 4KQ I got from John Mallick has the same symptoms. He said Audi did
> > > LOTS of things to try to track it down. Think I recall all the ususal -
> > > injectors, cold start valve, etc. I recently changed the ISV, to no avail,
> > > because I had one from the parts car. Based on what it's doing I suspect the
> > > timing advance is not working properly. I have not had time to pull the
> > > distributor and look things over. I've got a spare 4K distributor that I'll
> > > try, plus want to look at this one closely.
> > >         This assumption is based on how some of my older U.S. vacuum-advance cars
> > > acted when the advance was wrong.
> >
> > Yes, that just reminded me.The vacuum advance was down on my car as well.
> > The unit was not holding any vacuum (probably the diaphram) and had to be replaced.
> > If it helps any VW vacuum advance unit will bolt straight on.  I was looking for used
> > oned at junk yard and found a VW Fox with a good one.  Surprising however was a fact
> > that 5 out of 6 I looked at were not working as well.
> >
> > HTH
> >
> > --
> > Martin Pajak
> >
> > http://www.geocities.com/MotorCity/5939
> >
> > 1982 Audi Coupe Turbo (475,000 km)
> > 1982 Audi Coupe Quattro (155,000 km) Rally car
> > 1983 Audi Ur-quattro (220,000 km)
> > 1986 Audi 4000 S Quattro (377,000 km) with 5 bolt pattern
> >
> > C.E.O. of examlastminuteallnighterrollthedice inc.
> >
> >