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From: ix1037@sdcc6.UUCP (Christopher Latham)
Newsgroups: net.auto
Subject: Re: hot engine
Message-ID: <1979@sdcc6.UUCP>
Date: Fri, 22-Mar-85 02:19:17 EST
Article-I.D.: sdcc6.1979
Posted: Fri Mar 22 02:19:17 1985
Date-Received: Sat, 23-Mar-85 04:15:55 EST
References: <128@cvl.UUCP> <5100002@hplsle.UUCP> <310@rduxb.UUCP> <4397@ucla-cs.ARPA>
Organization: U.C. San Diego, Academic Computer Center
Lines: 24

> >> 
> >	Good idea! But I'd also like to point out that the anti-freeeze also
> >lubricates the water pump. You'd be amazed how fast the bearing and/or seal
> >deteriorate with plain water.
> 
> How about water with some anti-corrosion product added (eg the Dupont anti-rust
> stuff)?  If you are not in an area where freezing is a problem but rather high
> temps, can you get away with water and anti-rust?  I have friends who say,
> "I don't want that gunk [anti-freeze] clogging up my radiator."  They've never
> mentioned lubricating the water pump.

Not only does anti-freeze keep the cooling system from freezing but it
also increases the boiling point so the cooling system cools better. For
example the anti-freeze that I use in my car will raise the boiling
point to 268 degees F with a 60 % solution using a 14 PSI radiatorcap. 
It also says that the boiling point is increased by approximately
3 degrees for each extra PSI of the cap. So this would give a boiling 
point of about 226 degrees at atmospheric pressure for a 60 % solution.

Christopher Latham
U.C.San Diego
Dept. of Applied Mechanics
and Engineering Sciences
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