What else can you do to your 1991 Honda if it is still overheating by the time you go a mile if you have changed the radatior and the thermostat?

1) ONE THING YOU COULD TRY IS CHANGING THE RADIATOR CAP...IF IT'S BAD THE CAR WILL BOIL OVER AND APPEAR TO BE ALWAYS OVERHEATED WHEN ALL THAT'S REALLY WRONG IS THE LACK OF PROPER BACK PRESSURE DUE TO AN OLD/DEFECTIVE RADIATOR CAP. 2) IF THAT DOESN'T WORK YOU COULD TAKE THE THERMOSTAT OUT AND TRY DRIVING THE CAR WITHOUT IT IN AND SEE IF THE CAR RUNS LONGER BEFORE OVERHEATING...IF IT DOES THEN THE THERMOSTAT IS STICKING. THE THERMOSTAT COULD ALSO BE UPSIDE DOWN...IF IT IS IT WON'T WORK RIGHT. patricklaw1957@yahoo.com You might also check the timing.If it is retarded due to a bad timing chain or needing a tune up this will cause overheating.