[Healeys] Runnin' hot

[Alan Seigrist]

Derek -

If he has a standard reverse poppet 190 deg thermostat, the engine
will run around 200 deg on warm days due to the 20% or so back leakage
of hot water from the bypass galley in the head.  It can't run any
cooler than 190 deg.

A 190 deg thermostat is meant to be used in winter anyway.

Alan

On 8/12/11, Derek Job <derek.c.job at gmail.com> wrote:
> Alan
>
> The thermostat does not determine the temperature at which the engine will
> run. It determines the temperature at which coolant is first allowed to
> circulate around the engine.
>
> Derek
>
> On Fri, Aug 12, 2011 at 3:54 AM, Alan Seigrist <healey.nut at gmail.com> wrote:
>
>> Alan -
>>
>> If you have a 190 deg thermostat, your car will run at this
>> temperature.  Swap to a 180, and it should be better.  Also consider
>> your guage may be a bit inaccurate.
>>
>> Confirm this stuff first before getting too deep into something else.
>>
>> Good luck -
>>
>> Alan
>>
>> On 8/12/11, Alan Grossman <agrossman at pacific.net> wrote:
>> > I have this new to me '58 100 6. Has been "restored' by po, but I have
>> > no
>> > reciepts.
>> > Hits about 200 on the gauge after moderate driving in mid 80s ambient
>> > weather.
>> > Does not seem to get much hotter at idle. Fan belt is tight. Looking in
>> thru
>> > the radiator filler tubes look open and fresh as far as I can see. I
>> haven't
>> > checked timing, but the car starts on the button, and does not detonate,
>> so
>> > I
>> > don't think it is off enough to cause problems. Rolls well, so I don't
>> think
>> > I
>> > have a binding brake.
>> >
>> > Looking for some insight/direction.
>> >
>> > Thanks, Alan
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>>
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