Hi all. Whenever I install a new thermostat, which not that often actually, it only ever seems to work properly for a few months or so and then drift down to a colder opening temperature. This has been on a variety of different cars. My current ride sits at about 69 deg C where the water exits the motor, at a steady 100 kmh at say 18 degC ambient. Is about 5 deg hotter during slower stop/start driving.
I think I remember seeing a thermostat that had a small adjusting screw that was presumably set by the manufacturer to calibrate the opening temperature. If I get one of these next time, if - or rather when :-( it goes out of calibration, maybe I can just pull it out and give it a bit of a tweak with a small screwdriver in a pot of hot water along with a thermometer.
Does anyone here know about these kind of thermostats? Any experiences?
GP.