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The compression test could have been done partly in correct. I let it warm up to 180 , the disconnected distributor, fuel pump relay, removed plugs, so in hind sight it could’ve still been on the cold side.
Thanks for the response. Yes I replaced the fan motor and tested. It was hard to duplicate the overheat since letting it idle or driving around town would never cause the overheat. So I wired up a temp gauge and a way to manually turn on the fan. Normally the thermo switch worked fine after I bought the one from Honda, the car would goto 200 then fan would kick on and drop to 180 and so fourth. On the highway the car would stay at 180 until a certain point, the best I can say is roundabout 1 hour. Weather does not seem to mater, morning, afternoon, rush hour, no one on the road, the best I ban say is 1 hour. (Average time to get to or from work and would always over heat less than a mile away). So anyway once I saw the temp go to 110 it’s over, ac on off, heat on/off, fan manually switch on nothing will cool it down at this point. The a/c worked perfect yes the fan would come on and seemed to be normal operation, one weird thing though is when it would start to overheat the heat would be cool at first, and would have the heat selected for the whole drive with blower off, overheat would start so turn the blower to high and seemed cold for a minute to two. Other than that heat and a seemed great. I also left the fan to run the entire trip and car would stay around 176-185. Overheat still came. It seemed to me that it would run perfect for a while then at one point lights out and there’s no coming back unless you turn off the car and wait. Always highway after an hour. Changed thermostat three times, all the same. Changed thermo sensor twice, first one ( Oreilly) was goofy but ok after using a Honda one.
Thanks for the response. Yes I replaced the fan motor and tested. It was hard to duplicate the overheat since letting it idle or driving around town would never cause the overheat. So I wired up a temp gauge and a way to manually turn on the fan. Normally the thermo switch worked fine after I bought the one from Honda, the car would goto 200 then fan would kick on and drop to 180 and so fourth. On the highway the car would stay at 180 until a certain point, the best I can say is roundabout 1 hour. Weather does not seem to mater, morning, afternoon, rush hour, no one on the road, the best I ban say is 1 hour. (Average time to get to or from work and would always over heat less than a mile away). So anyway once I saw the temp go to 110 it’s over, ac on off, heat on/off, fan manually switch on nothing will cool it down at this point. The a/c worked perfect yes the fan would come on and seemed to be normal operation, one weird thing though is when it would start to overheat the heat would be cool at first, and would have the heat selected for the whole drive with blower off, overheat would start so turn the blower to high and seemed cold for a minute to two. Other than that heat and a seemed great. I also left the fan to run the entire trip and car would stay around 176-185. Overheat still came. It seemed to me that it would run perfect for a while then at one point lights out and there’s no coming back unless you turn off the car and wait. Always highway after an hour. Changed thermostat three times, all the same. Changed thermo sensor twice, first one ( Oreilly) was goofy but ok after using a Honda one.