[Healeys] Auxiliary electric fan

[Michael Oritt]

"Overheating" is an imprecise term and so long as the rad does not boil
over and/or the carbs go into vapor lock the fact that the indicated temp
is at or slightly above 212 is not a conversation stopper.
For those really challenging situations where traffic is stop and go, etc.
I turn on the auxiliary fan ASAP and place some duct tape over the temp
gauge so I will not constantly look at it.  If things get drastic the car
will tell you....

Best--Michael Oritt

On Thu, Jul 22, 2021 at 8:55 PM Alan Seigrist <healey.nut at gmail.com> wrote:

> Honestly I have never found a downside to it.  Actually my experience is
> at 190 some stuff gets loose on the car, so at 165 stuff seems to run
> better.  180 works okay but I prefer to have a wide mouth thermostat like
> the Waller, then that's okay too.
>
> On Fri, Jul 23, 2021 at 5:51 AM richard mayor <boyracer466 at gmail.com>
> wrote:
>
>> What is the down side of running a 165 degree thermostat?  Is your engine
>> not running at optimum efficiency?  I have been led to believe that an
>> engine's optimum running temperature is somewhere around 185 - 190 degrees.
>>
>> On Wed, Jul 21, 2021 at 6:07 PM Alan Seigrist via Healeys <
>> healeys at autox.team.net> wrote:
>>
>>> Kees -
>>>
>>> Living in hot and tropical climates like I have, I can confirm that
>>> using cooler thermostats helps a great deal to reduce heat spikes in
>>> traffic, as there is significantly less heat energy stored in the coolant
>>> at 165F vs 180F.  That combined with a well sorted system will be
>>> sufficient to give you a few more minutes at idle than if you were running
>>> a 180 or 190F thermostat on a very hot day.
>>>
>>> You are correct it technically will not prevent overheating, but it will
>>> postpone it long enough until you get driving again.
>>>
>>> Best,
>>>
>>> Alan
>>>
>>> On Wed, Jul 21, 2021 at 5:48 PM Kees Oudesluijs <coudesluijs at upcmail.nl>
>>> wrote:
>>>
>>>> A thermostat with a lower opening temperature does not prevent
>>>> overheating. It may buy you some time before the engine overheats but if
>>>> you are long enough in a traffic jam it will overheat eventually. A more
>>>> powerful fixed fan may alleviate the problem a bit but the only real
>>>> solution will be a properly installed electric fan.
>>>>
>>>> I have done this from the sixties on all my cars that had a fixed fan.
>>>> However even in those days many of the more powerful cars were already
>>>> equipped with thermostatically controlled radiator fans.
>>>>
>>>> An electric fan does not solve overheating because of other issues like
>>>> a dirty or blocked radiator, silted up engine, faulty cowling etc.
>>>>
>>>>
>>>> Kees Oudesluijs
>>>>
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-- 
Best--Michael
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