<VV> 64 Engine in 65 / Oil leaks

[Bill Elliott]

 From a similar discussion on corvaircenter.com:

"Almost 100% of their heat is carried away by
forced convection to the air that flows through their fins.
This is the same "mechanism" that causes your soup to cool
when you blow on it. In addition, even if their heat WAS lost
as a result of pure radiation, black paint is only black in
the visible spectrum. It is in the infrared spectrum that
heat is radiated, and to effectively radiate heat, a body
must appear "black" to infrared radiation. What color it is to
your eyes (in the visible spectrum) is irrelevant. But as I
said, an air cooled engine dissipates almost all of its heat
in contact with the air that flows through its fins. The
color of the fins makes no difference at all."

The primary function of paint in these situations is as an insulator 
(bad) and as an
anti-corrosion coating (as corroded surfaces insulate worse than paint).

Bill

Western Canada CORSA wrote:

><quote>
>means absolutely nothing as applied to an 
>engine.
><endquote>
>
>Can you expand on this?
>
>Regards,
>Joel
>
>-----Original Message-----
>From: virtualvairs-bounces at corvair.org
>[mailto:virtualvairs-bounces at corvair.org] On Behalf Of Ron
>Sent: Saturday, March 24, 2007 5:19 PM
>To: Andy Clark; westerncanadacorsa at shaw.ca; VirtualVairs at corvair.org
>Subject: Re: <VV> 64 Engine in 65 / Oil leaks
>
>
>Except for one major item and that is that "black" and "white" only applied 
>to solar or spectral radiation and means absolutely nothing as applied to an
>
>engine.
>RonH
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