[Healeys] thermostat discussion

[Healey List]

I have a thermostat, a recored larger core radiator, and had my block  
& head cleaned by the redistrip process.
Temp never goes over 185, on the hottest day, on the track. Only goes  
over when you turn off.
If it does go over the thermostat rating, it's either the thermostat,  
or a probl in the cooling system (blocked head/ block galleries or rad  
core
And I don't have anything under the carpet - wrap your manifolds or  
ceramic coat them
Chris
Sydney Austrslia
wwwyaustinhealey.com

Sent from my iPhone

On 05/07/2009, at 7:12 PM, Oudesluys <coudesluijs at chello.nl> wrote:

> Hmm,
> Not so sure about this. The temperature is regulated by the  
> thermostat, more or less. If more heat is developped it will open  
> further to allow more cooling to drop the temperature to the set  
> level.
> The reading also depends on where the sensor is placed. In the  
> cilinder head, intake manifold, thermostat housing, top of radiator  
> etc.
> Changing over the thermostats may cast some light here? Just to see  
> what happens.
> Kees Oudesluijs
> NL
>
>
> Alan Seigrist schreef:
>> Jerry -  a new build will run hotter until the rings bed in.  It'll
>> take probably about 500 miles to seat and then cool down.
>>
>>
>>
>> On 7/4/09, Jerry Costanzo <grumpyinloomis at ssctv.net> wrote:
>>
>>> Happy 4th of July for those of you in the states!
>>>
>>> I have two healeys, one has a early 3000 engine and the other is a  
>>> BJ8.  The
>>> engines are very similar, the timing has been checked on both, the  
>>> carbs are
>>> set.  The temperature in the early 3000 runs what I would call  
>>> normal, about
>>> 190- or up to a max of 210 on a hot day like we have in the summer  
>>> around
>>> here.  The BJ8 is a new engine, less than 100 miles but it is  
>>> running at
>>> least
>>> 10 degrees hotter and the only difference I can come up with is the
>>> thermostat.
>>>
>>> I bought a shielded thermostat and I am wondering if it is  
>>> restricting water
>>> flow such that the heat is not getting back to the radiator to  
>>> dissipate.
>>>
>>> Any theories out there?
>>>
>>> Jerry
>>> BN4