Hi, Marion -
I'm not sure why a lower-degree thermostat is considered appropriate for hot
weather. All it will do is open fully at a lower temperature. Once it's open
fully, it isn't going to do anything more for the cooling, and it certainly
won't keep the temperature from going above 160. A 190-degree thermostat will
be just as fully open at 190-degrees coolant temperature as a 160-degree 'stat
at 190 degrees. For a cooling system in good shape, a 190-degree thermostat
should be good for year round.
What the lower temp thermostat can do is make the engine run too cool in the
winter. Again, when it's fully open at 160 degrees, it is out of ability to
control the engine temp. A 190 can stay partially closed to restrict coolant
flow and bring the temp up closer to normal operating temperature (190).
It doesn't do any harm to run a 160 (or no) thermostat in the summer, but in a
cooling system that's in good shape, you'll probably have to change to a
higher temp thermostat in cooler weather or watch the temp gauge stay around
160 - 170 degrees.
Steve Byers
HBJ8L/36666
BJ8 Registry
Havelock, NC USA
----- Original Message -----
From: MBran89793@aol.com
To: kansl@net1plus.com ; healeys@autox.team.net
Sent: Friday, July 29, 2005 4:12 PM
Subject: Re: temp.
FYI there is a 165 degree summer thermostat listed in the M*** as 434-180
for $6.00 or you may want to spring for the 160 degree (Similar to
original)
434-155 for $38.95.
You may even consider the thermostat bypass blanking sleeve 434-135 at
$14.95 instead of a thermostat. Just a suggestion.
Marion S. Brantley, Jr.
727/867-7129
Tampa Bay Austin-Healey Club
Membership Chairman
_http://clubs.hemmings.com/frameset.cfm?club=tbahc_
(http://clubs.hemmings.com/frameset.cfm?club=tbahc)
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