KV6 overheating

[SD1too]

Originally Posted by chillyphil

The fan cycles on and off on demist and air con calls.

Originally Posted by chillyphil

Looks like a 3 speed fan.

OK, so you've got four wires entering the motor housing, yes?

Question is, should I repair or replace?

Repair, if you can.

Originally Posted by vitesse

If the commutator is in reasonable condition you might only have to replace one or two carbon brushes, I’m sure Simon will advise on a supplier.

Since Phil has reported that the motor is cycling on and off, that suggests that the commutator is serviceable and that the slow speed supply brush has worn to minimum length.
Phil; here's your supplier of new motor brushes. Ignore the word 'heater', they are for the radiator motor and the specification was drawn up after consultation with me and club member Greeners. I have them in my own car's fan motor.

Originally Posted by vitesse

Just advising the OP that ... he doesn't need to cut anything.

Yes, I have a KV6 2.5 litre too and with careful manoeuvring the plastic mouldings can remain intact.

Simon