JagExp

The XJ Forum (6/12/Series)

12 cyl XJS overheating

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Orlando, Florida, USA   USA
in the Caribbean islands, and other tropical climate areas, thermostats are removed. You don't need Heating in the Tropics, there are no winter temperatures. The engines are never "cold", just lukewarm, sometimes in the morning the engine is still warm.

I understand that everywhere else needs thermostats. But in a tropical island, or in the Mexican desert, a stuck-closed
thermostat is a problem.

just remove the thermostats and see what happens. Will you blow the engine? no. In any case it will run cooler.



1965 Jaguar S type
1984 Jaguar XJ-6

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memotor Guillermo T
juarez, Mexico   MEX
Thank's David, appreciate your time.
Lots of homework to do.
SALUDOS!

memotor Guillermo T
juarez, Mexico   MEX
As a matter of fact, Jose, here in Juarez is a common practice to remove the thermostat, because the high temperatures that we have to deal with during summer.
But I guess that it depends on the actual design of the cooling system, that determines the success of that move or the lack of...
I've experienced situations when the system is not able to cope with the heat generated in the engine, and not enough time for the hot coolant to cool off inside the radiator, since its flowing freely, with no thermostat to control this flow, resulting in a never stopping climb of the engine temp.
Anyway one more thing to consider.
Thank's Jose.
You guys are really helpful.

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