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Tiny
Joined: 10 Apr 2006
Posts: 502
Location: London, UK
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 Posted: Fri Nov 24, 2006 2:10 am Post subject: agghh!! my expansion tank cap just disintegrated! |
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GSF car parts don't have one in stock anywhere in the country!!
Does anyone in the UK have a source or even a spare i could buy? 
pretty please!!
Tiny
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*****1981 - 924 - Auto - London, UK****** |
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Lizard
Joined: 03 Nov 2002
Posts: 9364
Location: Abbotsford BC. Canada
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| Posted: Fri Nov 24, 2006 6:20 am Post subject: |
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it should just be a standard 13PSI rad cap, same as most fords/chevies, as well as some VWs
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3 928s, |
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Tiny
Joined: 10 Apr 2006
Posts: 502
Location: London, UK
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| Posted: Sat Nov 25, 2006 6:36 am Post subject: |
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ok cool...got one and fitted
i thought it was the reason she overheated.... pegging the red yesterday....but today after running her up to temp...the cooling fan didn't kick in....so it looks i am chasing a gremlin tomorrow
grrr
thanks buddy
tiny
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*****1981 - 924 - Auto - London, UK****** |
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Ozzie
Joined: 12 Mar 2005
Posts: 4448
Location: Townsville, Qld. Australia
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| Posted: Sat Nov 25, 2006 12:29 pm Post subject: |
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Join the two wires on your radiator fan switch.
If the fan runs then you have found the problem.
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Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance |
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spiraloutse4n
Joined: 06 Oct 2006
Posts: 6
Location: Seattle, WA
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| Posted: Tue Nov 28, 2006 5:40 am Post subject: |
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| Ozzie wrote: | Join the two wires on your radiator fan switch.
If the fan runs then you have found the problem. |
What does this mean? with my 924 i had the same problem with the fan not turning on at temperature, we got a brand new fan switch and it still didnt engage the fan, so we solved the issue by wiring the fan to always be on - but is there a better way? |
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Ozzie
Joined: 12 Mar 2005
Posts: 4448
Location: Townsville, Qld. Australia
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| Posted: Tue Nov 28, 2006 8:09 am Post subject: |
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The rad fan is controlled by a temp switch, a resistor and relay.
A fault in either one will cause failure of the fan to operate correctly.
If the switch closes but the fan doesnt come on then the resistor or relay is at fault.
Of course I'm assuming the wiring and fuses are ok.
The resistor and relay are in parallel circuits.
The relay bypasses the resistor when the ign is on and the fan runs at full speed when the switch is closed.
If the ign is off the fan runs at slower speed until the rad cools.
For twin fan systems it gets more complicated.
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Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance |
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Tiny
Joined: 10 Apr 2006
Posts: 502
Location: London, UK
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| Posted: Wed Nov 29, 2006 8:28 pm Post subject: |
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thanks guys - great advice
luckily for me it was the fuse
tiny
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*****1981 - 924 - Auto - London, UK****** |
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924 FAQ (Technical)
