quote:Originally posted by slojoe:
thanks for replies. we put in another robert shaw 333-160 thermostat and 'burped' the fluidyne radiator. the fans are in front of the radiator and push air through, seem to switch on at appropriate time, the radiator gets hot, but temp huage goes to 210 befor i turned it off. has anyone ever gotten a bad new radiator?
2 bad thermostats? any suggestions?
sounds like you have air in the system, get the rear end as high as the floor jack will go open the top petcock on your radiator, bleed until it is only water, now with the car still up ( use jacks to hold the rear end up) , start it up let it idle, now check the petcock again, let all the air escape, turn engine off, let cool, add water to tanks, add a water wetter like Red Line, all fluids topped off set car down open top petcock bleeder again, no air your good! Hey, getting all the air out of the system is a procedure, but not impossible, check all hose clamps and connections make sure they are tight as they will loosen up after the first heat cycle. 195 is the operating temperature in a stock application,Ford motor company runs extensive tests on their engines to determine the optimum operating temperature, a lower temperature does not burn off contaminants to high well will burn the engine up, keep in mind the wear on engine parts are optimized according to Ford at the 195 operating temperature.