Re: Air con in mondeo
"DervMan" wrote in message
news:8QJQe.3693$t4.2137@newsfe1-gui.ntli.net...
> wrote in message
> news:1125343631.905763.209430@g47g2000cwa.googlegroups.com...
>> I've a 2001 ghia.Air con on starting works fine, but after 15/ 20 mins
>> the the air con seems to warm up.Any help or advice.
>
> Is the system hot without using the air conditioning?
>
turn it to the demist
the aircon automaticly kicks in to help
leave it there and wait for the tell tale kick of the air con clutch kicking
in and out after the 15/20 minutes or so
if it doesn't then it sounds like you need a regas
> --
> The DervMan
> www.dervman.com
>
Date:Mon, 29 Aug 2005 22:21:08 +0100
Author:
|
Re: Air con in mondeo
wrote in message
news:1125343631.905763.209430@g47g2000cwa.googlegroups.com...
> I've a 2001 ghia.Air con on starting works fine, but after 15/ 20 mins
> the the air con seems to warm up.Any help or advice.
>
This is a common problem with many cars when the friction plate on the AC
compressor electro-magnetic clutch wears, and as the compressor warms up
when it's in use the magnetic force required to hold the clutch engaged
becomes too much. Usually the AC cuts out after 15-20 minutes of use and
will not come on again until the compressor has cooled, often after the car
has been off for a while. The heat spread from the running engine is usually
enough to prevent the compressor from cooling enough to work again - hence
it does not work again until after the engine has cooled also.
You can measure the clutch plate gap with feeler gauges. Ford may tell you
the specified gap, or you may find it on-line.
Most compessors have shims to adjust this gap, and by removing the clutch
plate and removing a shim or two you can get the gap back in spec. You may
need to make up a puller tool to remove the plate. Depending on the
compressor's location you may be able to do this in situ and without
touching the refrigerant pipes. If you *do* disconnect the refrigerant pipes
you'll lose the gas charge and will need the system re-charging. Do not use
one of these re-fill kits from ebay, get the correct charge quantity from an
AC specialist, or if you're near Bedfordshire I can re-charge it for you.
The fact your system works for 15 mins or so suggests that it has enough gas
in it to cool, so probably does not need a re-charge, just the clutch gap
adjusting. However if the cooling is poor when it does it may also need a
re-charge.
I did this recently on my Volvo 850 and a Saab 9000, on the 850 I had to
remove the compressor from the car to adjust the gap (a slow job!) but on
the 9000 it could be done in-place without removing the pipes.
On both cars it resolved the same fault you describe.
Hope that helps,
Alan.
Date:Tue, 30 Aug 2005 11:42:45 GMT
Author:
|