Any good tips on the rad fan switch?
Posted: Tue Aug 25, 2015 5:52 pm
Been struggling with my radiator fan switch and wondering if anyone else has found a clever solution.
I have the old one with the expansion bellows that are supposed to turn the fan on and off, and which in theory is adjustable via a small screw hole at the back (see pic below).
Problem is if I adjust it to come on at 85 deg C, it then doesn't turn off again until about 30 deg C (i.e. in reality not until after I am back home, parked and ignition off). If I adjust it the other way - to turn off at say 80 deg C, it won't turn on until (at least not at the temperatures I am prepared to risk trying).
The brass collar is split, but I have tied this with a length of wire and it holds as tight as it did before. Wondering if either someone has tips to adjust it to get it working again (the manual speaks of an air gap adjustment screw, but warns you never to touch it) or a way to hide a discrete switch somewhere else that can take its place.
I know I could bypass it to a hidden switch under the dashboard, but I'd rather not.
I have the old one with the expansion bellows that are supposed to turn the fan on and off, and which in theory is adjustable via a small screw hole at the back (see pic below).
Problem is if I adjust it to come on at 85 deg C, it then doesn't turn off again until about 30 deg C (i.e. in reality not until after I am back home, parked and ignition off). If I adjust it the other way - to turn off at say 80 deg C, it won't turn on until (at least not at the temperatures I am prepared to risk trying).
The brass collar is split, but I have tied this with a length of wire and it holds as tight as it did before. Wondering if either someone has tips to adjust it to get it working again (the manual speaks of an air gap adjustment screw, but warns you never to touch it) or a way to hide a discrete switch somewhere else that can take its place.
I know I could bypass it to a hidden switch under the dashboard, but I'd rather not.