Quote:
Originally Posted by thomasgoudie1956
I can't see anything ...
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Tom,
As you cannot see a resistor and your car is a year 2000 model, you probably have the original 2 speed 3 brush fan motor. Your previous evidence (cyclic operation) indicates that one of these brushes has worn down to its minimum length. This means that instead of your fan running when the engine reaches 104°, it won't run until it reaches 112° which is much too hot for comfort on any engine, particularly the 1.8 litre. Not only that, but because only two brushes are operational the motor will run only at slow speed. MG Rover designed the system to run at fast speed at this temperature. In short, by continuing to drive your car you are putting the head gasket at risk and sooner or later the worn brush will fall out of its holder, enter the rotating motor armature and cause terminal damage. Your engine will then overheat and you will break down.
Tom, you must act now. If you are sure you have no resistor then you need a replacement fan system. Club member
Arctic will help you with this. I'm afraid that ignoring the evidence and crossing your fingers is not very sensible.
Simon