As I recall from my limited experience, white smoke usually means that
there is water leaking into the block, black smoke means oil.  I don't have
the details of a 1:1 ratio on water production to gas burning (from an
earlier message), but if I had a water-cooled engine I would have it looked
at.
----------
> From: Tony Moore <tony@moorelab.com>
> To: Multiple recipients of list <vanagon@lenti.med.umn.edu>
> Subject: Re: water in my exhaust..
> Date: Thursday, June 12, 1997 7:00 AM
> 
> Hi Ken,
> 
> I too notice this upon the first start in the morning. Along with white
> smoke that lasts about a minute or so. No overheating problems, some
> periodic "topping off" needed in warmer weather tho'.
> 
> Never knew about the water generated from combustion engines, guess I
never
> gave it much thought.
> 
> Thanks!
> 
> tony
> '60 westy
> '71 rustfalia
> '86 weekender
> 
> ----------
> > From: kenneth d lewis <kdlewis@juno.com>
> > To: Multiple recipients of list <vanagon@lenti.med.umn.edu>
> > Subject: Re: water in my exhaust..
> > Date: Wednesday, June 11, 1997 7:18 PM
> > 
> > jg:
> > About a gallon of water is produced for every gallon of gasoline burnt.
> > All signs of it should vaporize though, after the engine reaches
> > operating temperature.
> > Drive Safely
> > Ken Lewis
> > 86 VW Transporter Three Door Pickup
> > 60 Porsche T-5 Coupe
> > 
> > On Wed, 11 Jun 1997 12:41:54 -0500 GILBERT_JEFF@tandem.com writes:
> > >Hi,
> > >
> > >Yesterday I noticed an unusual amount of water being spit out from my
> > >exhaust.  I was a good 10 feet away from the exaust and could see rain
> > >drop sized drops spewing forth...
> > >
> > >How much (if any) water is normal in exhaust?  What horrific disease
> > >could my baby have??
> > >
> > >anxiously awaiting...
> > >
> > >jg
> > >