[AT] oil change/carb icing/wind chill/etc.

[Ralph Goff]

----- Original Message ----- 
From: "George Willer" <gwill at gwill.net>
To: "'Antique tractor email discussion group'" 
<at at lists.antique-tractor.com>
Sent: Saturday, December 08, 2007 8:37 AM
Subject: Re: [AT] oil change


> You quoted only part of my post, Ralph.  As a pilot, carburetor icing was
> one of the very first things I learned about.  Applying carburetor heat is
> part of EVERY landing in an aircraft with a carbureted engine because ice
> can form at most normal temperatures and can cause the engine to quit when
> the power is reduced and full power won't be available if needed for a
> go-around. It isn't only the Cockshutt 40, but ANY carburetor will do it 
> on
> the inside when the venturi refrigeration effect causes the incoming humid
> air to cool below its dew point and that happens to be below the freezing
> point.  I'll say it again differently... IT HAS NOTHING TO DO WITH WIND
> CHILL.  Taking a picture won't be necessary but maybe you can make the
> effort to understand why it happens?

Thanks George. I do understand the process quite well. Somehow this thread 
has crossed over from oil viscosity in cold weather to carburetor icing.  My 
reply to Dean should cover it well I think.

Ralph in Sask.