help me pass aircare!yay I passed.-Danger-

[Ron at Bunch.org (Ron@Bunch.org)]

I'm happy to hear you passed.
I just went through that on the Atlanta emissions check for my 250- 300,000 
mile 86 8V.
Hydrocarbons got me the first time. Tester said it was probably EGR valve. 
Not believing in removing anything that ain't broke, I traced every 
emission hose and discovered the rubber T out of the valve cover had cooked 
and disintegrated. That was a $4 part from the VW dealer (at least until 
they are NLA)
Maybe all applicable 8 valve drivers should BUY IT NOW and up the dealer's 
demand. (That should make up for the other 3 way rubber piece that fits the 
water pump and cost me $75.00)
My first Bosck K Jetronic car ws a 74 Porsche 911S and I invested in a CO 
meter as soon as it went out of warranty.
CO meters were cheap in the early 70s and should be even cheaper now.
If you have an early K Jetronic without the sensor and want to do your own 
maintenance:  buy an exhaust analyzer/CO meter.
Research the specs and set it right.
Don't make adjustments without it unless you want the grief of engine 
damage that comes from running too lean.

At 05:06 PM 12/4/03 -0500, you wrote:
>He has a 1.7l with no O2 sensor. No use for a dwell meter...
>
>Marc
>'83 Scirocco
>'97 A4 Quattro
>
> > -----Message d'origine-----
> > De : scirocco-l-bounces@scirocco.org
> > [mailto:scirocco-l-bounces@scirocco.org]De la part de Dan Smith
> > Envoye : jeudi 4 decembre 2003 16:04
> > A : scirocco-l@scirocco.org
> > Objet : RE: help me pass aircare!yay I passed.-Danger-
> >
> >
> > Or just get yourself a Bently and a dwell meter and go from
> > there. I agree though, 2 full turns is HUGE. The reason the idle
> > stumbled is because you leaned it so much the car wasn't getting
> > enough fuel to run. By adjusting it back to not stumbling, it
> > just barely has enough fuel to run. I've heard of people doing it
> > the other way, adjusting way rich until the car stumbles/bogs and
> > then turning back. Give it like a 1/4 turn to the rich, then
> > either get a dwell meter or a mechanic to set it right where it's
> > supposed to be.
> >
> > Dan
> >
> > David Utley <mr.utility@highstream.net> wrote:
> > Quoting Vince :
> >
> > > Ok so I finally passed. It's like it was a whole different car
> > - the results
> > > are impressive.
> > >
> > > I did the following things since my fail:
> > > - leaned out idle fuel mixture, about 2 full turns, until idle stumbled,
> > > then up until smooth.
> >
> >
> > OMG...
> >
> > I think I should tell you, that is a VERU BIG adjustment... I strongly
> > suggest that you take that thing to a mechanic or shop that is
> > able to measure
> > whether a car is running lean or not... If you adjusted this thing 2 full
> > turns, and you have never adjusted it before, I can guarantee you
> > that you are
> > running lean, which will cause premaure wear and/or overheating... If you
> > have never had your baseline set before, I strongly suggest it... When
> > mechanics adjust the mixture seting, they turn it prolly less
> > than a 40th of a
> > turn... No kidding!
> >
> > HTH
> >
> > David
> >
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