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coullstar
Montreal


Joined: 15 Sep 2015
Posts: 526
Location: Aberdeen/Torphins


PostPosted: Tue Oct 03, 2017 9:22 am    Post subject: Air con pump - best source for replacement Reply with quote

Noticed a rattle from the engine last night and sourced it to a loose air con pump clutch assembly (the inner part is very loose).

With air con on its doesn't rattle but looks like new pump etc will be needed so where is best to source these from?

Don't need aircon for the moment so Ive switched off which Im assuming will be fine.
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maldren
Nürburgring


Joined: 07 Oct 2016
Posts: 430



PostPosted: Tue Oct 03, 2017 10:38 am    Post subject: Reply with quote

I bought a new pump, drier and O rings from autoairconparts.co.uk for £178.68.

Fitting the pump is not easy, I suspect you really need to drop the engine a bit to access the back bolt, I gave up and paid 9e to do it!

You may be able to just replace the clutch and that would be much easier.
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Mike
2003 996.2 C2 Coupe Arctic Silver
 
  
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coullstar
Montreal


Joined: 15 Sep 2015
Posts: 526
Location: Aberdeen/Torphins


PostPosted: Tue Oct 03, 2017 11:10 am    Post subject: Reply with quote

Thanks, I'll give them a go. Maybe do the clutch part then regas and see.
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wasz
Kyalami


Joined: 28 Dec 2012
Posts: 1753


1999 Porsche 996 Carrera 2

PostPosted: Tue Oct 03, 2017 1:26 pm    Post subject: Reply with quote

Its not very hard to change the compressor, just a little fiddly. You don't need to drop the engine. You can't see that rear bolt but a socket with a wobble will get on it.

See my guide here:
http://911uk.com/viewtopic.php?t=93945&highlight=


You need to get the system vacuumed out first, its an offence to knowingly release these gasses into the atmosphere.

Will be worth changing the drier if the system has been open to atmosphere for any length of time.
 
  
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coullstar
Montreal


Joined: 15 Sep 2015
Posts: 526
Location: Aberdeen/Torphins


PostPosted: Tue Oct 03, 2017 1:53 pm    Post subject: Reply with quote

Thanks, as long as Im not doing any damage I'll take my time and see if anything else pops up to replace then do lots of jobs at once.
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maldren
Nürburgring


Joined: 07 Oct 2016
Posts: 430



PostPosted: Tue Oct 03, 2017 4:59 pm    Post subject: Reply with quote

wasz wrote:
Its not very hard to change the compressor, just a little fiddly. You don't need to drop the engine. You can't see that rear bolt but a socket with a wobble will get on it.


Wish I'd seen your post before I tried it, mind I didn't have a wobble bar (I have now) and yes, getting the gas removed first is essential.
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2003 996.2 C2 Coupe Arctic Silver
 
  
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Harv
Suzuka


Joined: 18 Sep 2014
Posts: 1074



PostPosted: Wed Oct 04, 2017 9:52 am    Post subject: Reply with quote

ELA has removed all of his aircon system and it was for sale. Worth a pm to him if you're happy to fit a used pump
 
  
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coullstar
Montreal


Joined: 15 Sep 2015
Posts: 526
Location: Aberdeen/Torphins


PostPosted: Wed Oct 04, 2017 10:54 am    Post subject: Reply with quote

Might consider second hand, I might just swap the pulley to stop the rattle for now then look at sourcing a correct new unit.

What other Porsches have same pump / pulley?
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coullstar
Montreal


Joined: 15 Sep 2015
Posts: 526
Location: Aberdeen/Torphins


PostPosted: Fri Oct 06, 2017 10:53 am    Post subject: Reply with quote

Is the main part of the pulley that the belt runs on retained by a circlip and not the 10mm bolt?

Reason Im asking is that the centre part of the clutch is so loose, as all the rubber has melted, and it is very noisy rattling now and is making the whole pulley vibrate so if I can Id like to remove the loose part yet still drive the car.

Replacement pump and pulley is coming.
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