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Date:         Mon, 17 Jul 1995 15:24:01 -0700
Sender:       Vanagon Mailing List <vanagon@vanagon.com>
From:         "Erik Soule"  <erik@henries.nsc.com>
Subject:      Re: Sqirting water on an oil cooler et al

In message <Pine.SUN.3.91.950717144542.23645C-100000@user.centcon.com> writes: > The only problem with sqirting water on any type of radiator is that it > short circuits the cooling process and actualy makes an engine retain > heat. If you keep the radiator nice and cool the engine gets really hot! > it's a short excersize in physics but if you think about it it makes a > lot of sense. Hence squirting water on an oil cooler will kill your > engine twice as fast, on the heads doubly so!. The reason your engine > stays cooler when it's rainy is that the humidity is very high and water > vapor carries heat away from the fins faster than air. If you can find a > way to prevent evaporation from occuring on the fins when squirting the > water it may actualy help but I doubt it can be done easily. > > Scott

Whoa, wait a minute, something doesn't seem right here. When it's hot out, like it was this weekend in the Bay Area, your body (which is really just a big-ass radiator) sweats like a pig. When the water evaporates it uses some of the heat from your body to do so, thus cooling you off. I think the same concept would apply to a VW oil cooler. Please explain how a nice cool radiator makes the motor hotter.

I'd like to hear this short exercise in, errr, fizzix....I'm not convinced.

-Erik, who used to call it "therm-blow-dynamics".

NSC Analog Automotive Systems Tel. (408)721-3476 Fax (408)721-8292 M/S C2611


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