Thanks for the excellent data Bill. As Phil says your thermostat is the suspect; failing to close properly or opening early and the only cure for that is a new one unless you've had work done on the cooling system recently and it hasn't been refilled and bled properly. No-one has put K-Seal  in it I hope?
Simon
__________________
"Whatever is rightly done, however humble, is noble."
Sir Henry Royce.
|