>New problem: alternator is smoking badly and ingniton light will not go
off.
>Fan belt is new and tight. Is this a sign the alternator is shot or some
kind
>of wiring problem?
Short-circuit diodes. You may be able to replace just the diode pack, but
if is smoking it is probably safer to replace the whole thing. I trust the
battery is connected the correct way round? Double check before smoking a
new alternator.
>Another question: What is the purpose of the electric fan in my 1980 mg?
Engine cooling fan or heater/demister fan?
> I don't have an owners manual. When do you turn it on?
If is is the engine cooling fan it should turn on and off all by itself as
the water temperature dictates. If it is not turning on at all the
thermostatic switch in the radiator may be duff. A previous owner may have
fitted an overide switch if they were paranoid about seeing the needle move
past the 'N'. It is normal for electric fans to switch on just on the 'H'
side of half-way between 'N' and 'H', and to switch off again just below the
same point.
If is the heater/demister fan, well, I am sure I don't have to go any
further.
> And why does it make a loud sound like the ingnition buzzer?
Could be dry bearings (in either case). Strip and oil .
PaulH.
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