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Air Con Gas?


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#1 danpan93

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Posted 11 June 2012 - 04:49 PM

Hi all,
I'm getting my air con re-gassed tomorrow, but the person doing it needs to know how much it takes in grams. I have no idea what it is or where I can find it as I haven't had it done before, so I'm hoping someone can help!
Car details are as follows:
2002 focus 1.6 petrol zetec silver special eds.
If anyone knows the details I would be very grateful!
Thanks,
Dan

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#2 Andy 1965

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Posted 11 June 2012 - 05:18 PM

The person re-gassing your aircon should have a meter attached between the source of the gas and your low pressure port on the car. This will tell him when the correct amount of gas is put in. It's a bit like a tyre pressure gauge. I done my own car with a can of R134a refrigerant and it worked for about 2 hours. I suspect there may be perished 'o' rings or a leak somewhere else. Best to get it checked for leaks first, before re-charging it.

#3 btmaldon

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Posted 11 June 2012 - 09:04 PM

There should be a label under the bonnet (usually on the slam panel) that states the type and weight of gas required. It should be around 650 gms but I thought they filled up the system based on the pressure.

#4 danpan93

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Posted 11 June 2012 - 09:42 PM

Hi, thanks for the replies! I don't know what equipment is used to do it as I've never had it done before, all I know is that the guy who is doing it for me needed to know how much it took in grams. I'll have a chat with him tommorw about leak testing as well as it would be pointless re filling if it's just gonna leak out again! Shame we don't have the weather to use it now anyway!


#5 Stoney871

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Posted 12 June 2012 - 12:57 AM

An authorised Aircon Fitter/Engineer will degas, condition, lubricate, test and refill your system using one machine.
As stated before, it's all to do with pressure rather than volume.

#6 pragmatix

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Posted 12 June 2012 - 08:09 AM

Even kwik fit do a full test before gasing and if your system leaks they will not fill it and best of all no charge, also if the do fill it, you get a 12 month money back warranty, not bad fo £49

#7 btmaldon

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Posted 12 June 2012 - 08:19 AM

It may be that he needs to know in order to work out how much PAG Oil is required.

#8 danpan93

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Posted 13 June 2012 - 07:29 AM

Hi again,
He is an authorized technician, but he's doing it as a favor for me, so I'll have to ask him what he's going to do. I missed him yesterday as he was off I'll, but as soon as I see him I'll find out what he's going to do.
Thanks for all the help!

#9 stef123

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Posted 13 June 2012 - 11:25 PM

I think air con done professionally should be by weight. When it's done at my work, the bottle is suspended from a spring balance so they know exactly what's going in.

#10 pragmatix

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Posted 14 June 2012 - 06:36 AM

I think air con done professionally should be by weight. When it's done at my work, the bottle is suspended from a spring balance so they know exactly what's going in.


Correct

#11 danpan93

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Posted 14 June 2012 - 09:04 AM

Update!
Just spoken to him, hopefully going to get it done today and he is going to leak test it first, so it's all good!
Thanks for all the help and advice, I've just got to find that data plate now!

#12 danpan93

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Posted 15 June 2012 - 09:33 PM

Update!
Finally got the gassing done today, turned out it had gas in it, but was just a little low. So topped up and it's all good! No leaks :-) also found out the reason it's not as effective as it could be is due to a blocked up pollen filter, so the next step it to get that changed. My question now is; does anyone know if it's possible to get the pollen filter out without breaking the seal between the scuttle tray and windscreen? Don't really want my car filling up with water!


#13 Stoney871

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Posted 16 June 2012 - 12:04 AM

Tbh it's best changing the seal when you do the filter.
It's better for peace of mind.
Plenty available on eBay for pennies.

#14 danpan93

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Posted 16 June 2012 - 09:19 AM

Ok thanks I'll have a look


#15 stef123

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Posted 16 June 2012 - 10:27 AM

It's not the seal on the windscreen that's the issue, after all it's only foam. On the underside if the scuttle there is a plastic lip which is melted on at points - this is what actually leaks.

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