Re: physics type question regarding exhaust

[doug daniel <dougdaniel50@xxxxxxxxx>]

condensation ,,and your dad was probably checkin for leaking exhaust...i would think

--- On Fri, 5/20/11, neal zimmerman <neal.zimmerman@xxxxxxxxx> wrote:

> From: neal zimmerman <neal.zimmerman@xxxxxxxxx>
> Subject: physics type question regarding exhaust
> To: 1962to1965mopars@xxxxxxxxxxxxxxxx
> Date: Friday, May 20, 2011, 9:49 AM
> Hi all, hey, I am just wondering and
> realize I have never known why
> cars do this.
>    Why does water come out of tailpipes?? I
> was sitting at a light and
> the car ahead of me took off and some water trickled out of
> the
> tailpipe. I have seen this umpteen times and always
> wondered why.
>    here's my guess: reverse condensation. If
> u put cold beer into a
> glass, in a hot room, the glass will start to sweat,
> because the beer
> is colder than the room ( basically).
>    In a car the air inside the exhaust
> pipe  is much hotter than the
> surrounding air so the exhaust pipe sweats on the inside.
> Yes???
> No?????
>     Thats only a guess, somebody told me it means
> the head gaskets
> blown and coolant is getting into combustion chamber. I
> dunno that
> sounds kind of iffy.
>      I know when u hold your hand up to
> an exhaust pipe it feels kind
> of moist. I remember my dad would do this when he went to
> look at a
> car.. In fac the would kind of push his hand onto the pipe
> and sort of
> try to stop it. What was he doing , or thinking he was
> doing. Maybe it
> was just some dumb kind of tire kicking thing that doesn't
> reallly
> tell you anything. If the car had dual exhaust he would cap
> both pipes
> with both hands.
>    Ahh Dad, miss you Dad and all the cars we
> used to go look at, and
> you'd never let me buy.
>   Neal ZImmerman, Eugene Oregon
> 
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