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Re: Timing vs. cooling efficiency

To: "Charles D. Sorkin" <cdsorkin@ix.netcom.com>, spridgets@autox.team.net
Subject: Re: Timing vs. cooling efficiency
From: Jeff Boatright <jboatri@emory.edu>
Date: Fri, 05 Nov 1999 17:01:48 -0500
Organization: emory
References: <004a01bf27cc$5be35520$fde06dd1@y1e6l0>
Reply-to: Jeff Boatright <jboatri@emory.edu>
Sender: owner-spridgets@autox.team.net
Charles,

When you flushed the radiator, did you actually run the engine with the
flush compund in the system? I found I had to do this a couple of times
before the coolant was clear. 

Timing is also critical. Too retarded or too advanced will cause
overheating. I've tested both! :(

I've also tried waterwetter from Redline on a lark. It actually did
lower temps this summer by about 10 degrees, though I'm not sure if it
was just because Redline suggests dropping the antifreeze levels to
about 10% (water cools better than antifreeze). I would not do that in
the winter up north.

Good luck

Jeff

"Charles D. Sorkin" wrote:
> 
> Dear List:
> 
> Over the summer, the '74 Midget experienced some problems in relation to
> overheating while sitting in traffic.  Several others on the list commented
> that they had minimal trouble in any sort of climate, and I was wondering if
> perhaps poorly set timing could be responsible for interfereing with the
> cooling efficiency.
> 
> Would improper timing lead to hot spots in different areas of the engine,
> thus raising the temperature?
> 
> I recently fixed an exhaust leak, but have not yet had the car out in mild
> or warm temperatures, so I don't yet know if that has made a difference.  (I
> suspect that it might, as hot exhast gas would be disapated at the back of
> the car, not under it).
> 
> For reference, the radiator was flushed, I have no known leaks, I dumped
> some Alumaseal powder into the expansion tank, the car has an oil cooler,
> and it has a 160 degree thermostat.
> 
> What other steps could I take (short of installing an electric fan) to
> restore the cooling efficiency to what seems to be a clean radiator?  Do any
> of these steps require a cat or a hammer?
> 
> Regards,
> 
> Charles
> '74 Midget
> cdsorkin@ix.netcom.com
> Bloomfield, NJ

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