dixie4.wales at virgin.net
Tue Apr 9 04:35:51 MDT 2013
As I recall the recommended temp range for most cars of 50/60s era and later
would be 180 so 179 would seem right. Sometimes a different temp would be
recommended for winter and summer same as oil viscosity. Not exactly sure of
the temp recommendation for the TR3.
The lower rated of the two you have is the type that would probably be
originally fitted to diesel engine cars and trucks where the requirement is
for the stat to open earlier owing to the extra heat generated by much
higher compression pressures. Also it is a possible short term fix if a
petrol powered car overheats easily. The right opening temp improves running
efficiency and economy. Ideally the TR engine requires a skirted thermostat
to restrict the flow though the bypass.
On a final personal note engine rebuilds are expensive and bellows type
thermostats were and are notorious for failure so I would not like to risk
it. Junk the bellows type as it must have been manufactured 40+ years ago
and fit a 'Waxstat' type with a suitably modded skirt. Many ideas of how to
do this have been discussed on the 'List' over the years.
Adrian TR4A CT64306 O
----- Original Message -----
From: "Robert Jones" <rjones at wfeca.net>
To: <triumphs at autox.team.net>
Sent: Tuesday, April 09, 2013 3:30 AM
Subject: [TR] Thermostats
> I have two bellows type thermostats, one that opens at 160 degrees f and
> that opens at 179 degrees. Any suggestions as to which one I use. The
> car is
> in Florida and has a TR3 engine with alloy radiator.
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