Jim -
Now that I think of it, you're right of course. I was thinking of dispelling
the common misconception that all the water that drips out of the tailpipe
is just from the water that may condense out of the air onto the inner walls
of the exhaust system when the engine is shut off. Though there is likely
some of that happening as well, most of the water comes from the burning
fuel. As far as cracks go, many years ago when I worked as an automotive
machinist, I always magnafluxed each head I repaired right after pulling it
out of the hot tank and cleaning it up. If I had a block with any evidence
of cracking I would have checked it out as well, at least around the water
jacket areas.


-----Original Message-----
[mailto:[EMAIL PROTECTED] Behalf Of Jim Cathey
Sent: Friday, January 06, 2006 8:43 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] OT: Genset

> Actually there is quite a bit of water vapor that comes out

Roughly a gallon for every gallon of fuel that goes in, I'm told.
Something tells me that's short, since octane is C8H18.  Propane
is C3H8.  I'm no chemist, but them thar hydrogens ought to blow
out into 9 gallons of water per gallon of gasoline, or four per
gallon for propane.  Bad chemistry, but still gives you a rough
idea of what comes out.

> of the tailpipe in most any engine. The water that you see dripping
> out of your tailpipe each morning is not from condensation, it is
> water vapor, a by

Technically, it _is_ condensation.  Condensed water vapor from the
combustion process, as opposed to condensed water vapor that was
already in the air.

Once the engine parts all warm up, it doesn't condense anymore.

I'm pronouncing my engine fixed, unless it hits me in the
face with a dead fish.  I'm working on the regulator now.

-- Jim

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