Lots of thermostats are junk these days and a lot of them are cases of wrong thermostats are being sold as replacements for engines that they are not designed for. A good example is the Ford 351C/351M/400 engines. The original thermostats had a hat on the bottom of the thermostat which covered up the bypass which is cast into the intake. All your parts stores call for the same thermostat as the 289/351Windsor/429/460 engines. Those thermostats do fit but because they do not block off the bypass when the thermostat opens the engines run hot. I have a 1978 F150 with a 400. My solution was to buy a whole box of NOS Robertshaw thermostats. They were made in Knoxville TN and are properly designed.
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Today's Featured Article - Listening to Your Tractor - by Curtis Von Fange. Years ago there was a TV show about a talking car. Unless you are from another planet, physically or otherwise, I don’t think our internal combustion buddies will talk and tell us their problems. But, on the other hand, there is a secret language that our mechanical companions readily do speak. It is an interesting form of communication that involves all the senses of the listener. In this series we are going to investigate and learn the basic rudimentary skills of understanding this lingo.
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