Re: [DML] Help! Is this normal?
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Re: [DML] Help! Is this normal?



My guess is that during warmup (at least) the car is over-rich. Especially 
since you say adjusting it leaner lessened the smoke. Did the smell also get 
at least a little better? The thing to do here is find out if the car is 
over-rich only during warmup, or all the time. If it is all the time, then 
further adjustment of the CO adjustment is what is called for. If it is only 
during warmup, adjusting the CO is  probably not the answer since you don't 
want the car to run lean all the time just to solve an over-rich condition 
that exists only during warm-up.

Some diagnosis is necessary. Adjusting the CO as per the manual is the first 
step. Then if the problem perists, see if you can have a shop use an exhaust 
analyzer so that you know what is happening during warm-up. If the car is 
too rich only during warm-up, consider such things as the warmup regulator 
and possibly the cold start system, among other things.

-Joe Kuchan


>From: "Daniel" <dmcburn75@xxxxxxxxx>
>Reply-To: dmcnews@xxxxxxxxxxxxxxx
>To: dmcnews@xxxxxxxxxxxxxxx
>Subject: Re: [DML] Help! Is this normal?
>Date: Sun, 26 Feb 2006 01:54:46 -0000
>
>Joe,
>I would have to say the smoke is gray. Looks like cigarette smoke. I
>adjusted the CO with the 3mm hex wrench and it did improve it. I
>turned left to lean about 1/4 of a turn and the smoke lessened from
>coming out 4ft from the muffler to about a foot(this make sense?)
>perhaps I have to get back in there and turn a little more? Thanks for
>the reply!
>
>-Danny
>4160
>
>
>--- In dmcnews@xxxxxxxxxxxxxxx, "Joseph Kuchan" <josephkuchan@...> wrote:
> >
> > What color smoke?
> >
> > Pick one:
> >
> > 1. white
> > 2. black
> > 3. blue
> > 4. gray
> > 4: chartreuse (just kidding)
> >
> > From the smell you're describing I'm guessing you are going to say
>black.
> >
> > -Joe Kuchan
> >
> >
> > >From: "Daniel" <dmcburn75@...>
> > >Reply-To: dmcnews@xxxxxxxxxxxxxxx
> > >To: dmcnews@xxxxxxxxxxxxxxx
> > >Subject: [DML] Help! Is this normal?
> > >Date: Thu, 23 Feb 2006 23:12:12 -0000
> > >
> > >Hello all,
> > >
> > >Well here is a little problem (or not?) I have discovered. I notice
> > >when I first start up, ALOT of smoke with a very strong exhaust smell
> > >comes from the mufflers. Its enough where you don't want be anywhere
> > >near the car. This will last for about 10 minutes and then it will
> > >settle out and lessen greatly. I also notice a "pssssssst" sound
> > >coming from the engine when I open the throttle. I assume this sound
> > >is just air being let into the intake? Is this condition normal or am
> > >I running too rich? I've tried to adjust the CO plug but it doesn't
> > >seem to help. Any advice is greatly appreciated. Thanks!
> > >
> > >-Danny




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