radiator fan test.

radiator fan test. was created by marlow

Posted 13 years 5 months ago #25579
I know I've seen somewhere that it's possible to check the fan operation, but I cant find it, Any ideas??
I found my water was down by about 1/2 pint. which is unusual , it's never used any before.
I took it about 10 miles , no sign of temp rise on water or oil gauges. but when I stopped the expansion tank started to boil over.
Engine bay fan was on but couldn't hear the rad fan,?? :-?
by marlow

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Replied by David Aiketgate on topic Re: radiator fan test.

Posted 13 years 5 months ago #25581
You need to disconnect the plug from the engine temp sensor(ECT). The fan should come on(with ignition on).

David
:shrug:

Last Edit:13 years 5 months ago by David Aiketgate
Last edit: 13 years 5 months ago by David Aiketgate.

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Replied by David Aiketgate on topic Re: radiator fan test.

Posted 13 years 5 months ago #25582
[IMG

One of Clive's photos, :thumbsup:

David
:shrug:

Last Edit:13 years 5 months ago by David Aiketgate
Last edit: 13 years 5 months ago by David Aiketgate.

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Replied by David Aiketgate on topic Re: radiator fan test.

Posted 13 years 5 months ago #25583
First thing though, would be to fit a new expansion cap!

David
:shrug:

by David Aiketgate

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Replied by a Guest on topic Re: radiator fan test.

Posted 13 years 5 months ago #25584
or one of my pics..if your engine is in the car still lol (it may be brown or black)

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Replied by David Aiketgate on topic Re: radiator fan test.

Posted 13 years 5 months ago #25588
Mmm, nice picture Iain! :thumbsup:
Still think expansion cap first, do you agree?:shrug:

David
:shrug:

by David Aiketgate

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Replied by a Guest on topic Re: radiator fan test.

Posted 13 years 5 months ago #25589
Yep...symptoms familiar for duff caps
by a Guest

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Replied by rog1963 on topic Re: radiator fan test.

Posted 13 years 5 months ago #25590
talking of caps, do I remember reading that there are various caps on the market and of which ones are recommended/avoided? would be handy to keep a spare.

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by rog1963

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Replied by Dieter on topic Re: radiator fan test.

Posted 13 years 5 months ago #25596

marlow wrote: Engine bay fan was on but couldn't hear the rad fan,?? :-?


Broken cap could be an option.

How about the idea to check the front fan fuse at first ?
What VIN is your MGF. May be it's still the old setup with 15amps only. Prone to fail :rant:
Fan fuse is located inside the bonnet fusebox. Replace it with 20amps in any way.

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Dieter K.
MGF Rep. MGCC DE

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by Dieter

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