[TR] TR4A - Fan temperature threshold question

[Bob Labuz]

Guy,

I would say about 190 is about as high as you would want the temp to go. 
The temp gauge on my 3 is 185 in the middle. I have always thought that 
185 is the norm,high for both the 3 and 4 engines. However, the 4 is in 
graded in celsius and the middle reads 70 which is about 165 fahrenheit.

I have never measured the actual temperature in either car but I use 165 
thermostats from TRF and guess I am running about 165 - 170. Both cars 
stay right in the middle or a little less no mater how hot outside or 
how I am driving.

Bob
> All,
>
> What temperature is too hot for the TR4A engine?
> I am looking to install a thermostatic switch for the electric fan in the near
> future, but don't have any appreciation on the on/off temperatures to look
> for.
>
> I found an in-line switch from Derale that turns on at 180, and off at 165,
> but don't know if those thresholds would be appropriate.
>
> Thanks in advance.
>
>
>
> Cheers,
>
> Guy D. Huggins
> 1965 Triumph TR4A
> CTC 63569LO
>
> Online project diary at http://www.genfiniti.com/triumph