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Re: [TR] Balanced Thermostats

To: dougfr@comcast.net
Subject: Re: [TR] Balanced Thermostats
From: "v6spitfireguy@cox.net" <v6spitfireguy@cox.net>
Date: Tue, 11 Mar 2008 14:17:17 -0400
FWIW
I used one of these in my 40 Ford Triumph parts hauler (Ford 289, C4 auto,
down flow 4 core aluminum radiator, engine driven flex fan, shrouded).  I
tried several brands, all with the same result.  These are the ones with a
can on the end and three oval holes.  Supposed to allow more coolant flow,
better control with higher water pressure etc.  The temp would fluctuate
about twenty degrees, and would get hot on hot days with the air on. It
would take forever to warm up and was not very constant. In fact, on really
cold days it would not even warm up fully on the 15 mile drive to work on
the freeway. I replaced all of these improved versions of the thermostat
(three of them, I really tried) with the conventional pop up type and now
my temp remains constant even with the air on on hot days, and warms up
very quickly - Now that was my experience, yours may vary, but I for one
will continue with the old standard, albeit stainless, thermostat -



Original Message:
-----------------
From: Doug dougfr@comcast.net
Date: Tue, 11 Mar 2008 10:21:45 -0700
To: triumphs@autox.team.net
Subject: [TR] Balanced Thermostats


I've been reading in a book on "Cooling 'System Basics" about the advantages
of a 'Balanced' thermostat in auto system cooling.  This especially applies
to
the ability of the thermostat to open easily when there is a sudden changes
in
RPMs.

This was developed by RobertShaw and is used in many American hot rods, etc.

The conventional thermostat is a Reverse Poppet Thermostat and will
open-closed quickly when the engine starts hard acceleration.  This is not
good if you have upgraded your engine.

Does anyone have a recommendation for a 'Balanced Sleeve Thermostat' that
will
work in our Triumphs?


Doug Fraser
Sammamish, WA
1969 TR6
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