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Air Con Not Working - A Couple Of Questions.


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#21 sgking

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Posted 06 May 2013 - 07:59 PM

nice one keep us posted
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#22 Automondeo

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Posted 07 May 2013 - 09:35 PM

Don't forget to factor in a drier in your costings!

While its a separate component, fact the bottom of the condenser was rotten and an open leak your drier is shot, they only have a 4 hour lifespan when open to air.

Not changing can cause degradation of the system later on, as its purpose is to soak up moisture, which it can't do if its completely saturated already.


A quick question for you RB2004. I have now ordered a new condenser and a new drier, obviously once i remove the seals on the new drier i will have to fit it quickly and get the system airtight again. But would it also be a good idea to get the system re-gassed asap once i have fitted them? Or will the drier be ok for a while once the system is sealed up again? I don't want to fit it all and then find i cannot get a re-gas done for a few days if it will damage the drier.

Thank you.


P.S Got a new drier for £30 all in, so with the condenser it's hopefully only going to be £54 for the parts. So with a re-gas i should have it running again for about £100 in total. :)

R reg 1997 Mondeo 2.0lt Ghia 4 Door Saloon Auto. No mods. Gearbox from a later black topped engined car successfully transplanted in place of my original box. (I have a copy of the CD4E service manual - if you need anything, let me know).


#23 RB2004

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Posted 07 May 2013 - 09:52 PM

Hi, most people including specialists will probably say its fine.

However as soon as opened the system will flood with air, which includes moisture, then after closing the system the drier will start to naturally soak up that moisture.. While its not going to destroy it, as its limited. It does obviously reduce how much in future it can soak up in terms of moisture as its already soaked up some. Some may argue that it's the same as when the system looses refrigerant, system fills with air containing moisture.. Which indeed it does.

So it's a matter of oppinion.

My preference would be to do the condenser, but swap the reciever drier a few hours before you get it gassed.

Or unbolt it so it can slide out its clamp quickly and leave it to the Aircon person to do the physical swap... You need a special tool to release the pipes.. It's called springlock. Like a ring shaped spring locking the pipe onto the drier.

#24 Automondeo

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Posted 07 May 2013 - 10:03 PM

Thanks for the reply, i understand what your saying and it makes sense to me, pointless letting it soak up the moisture that is now in the system if i can avoid doing so, so i will let the friendly re-gas man do the swap. Plus, i do not have the special tool. But i will make sure the old one is free to come out - no seized or rusted bolts for him to worry about.

Thanks again for your help, it is very much appreciated for sure. I will post back in a couple of weeks, hopefully with good news that i have nice cool air again!

R reg 1997 Mondeo 2.0lt Ghia 4 Door Saloon Auto. No mods. Gearbox from a later black topped engined car successfully transplanted in place of my original box. (I have a copy of the CD4E service manual - if you need anything, let me know).


#25 Automondeo

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Posted 26 May 2013 - 06:34 PM

Finally got around to removing the old condenser today, the bottom was totally rotted.

Thought i had everything covered regarding fitting the new one, but have hit a snag. Does anyone know what size the O-rings are that go in the condenser fittings? I had bought myself a selection box of the green O-rings that was supposed to have all the common sizes used on Fords, but none of them match what i need.

The ones i want to replace seem to be 10mm, but i am not sure of the correct thickness, possibly 10mm x 2.5mm, or maybe 2.8mm. I do not think they are 3mm. I have tried to measure the ones that came from the fittings, but they are squashed, so no chance of getting an accurate reading.

Also, i borrowed a spring lock fitting tool from a friend so that i will be able to change the drier before i go for the re-gas, i took the pipes apart on the old drier to see what O-rings were needed there - guess what? None of the ones in my kit fitted. So i am also after the size for the O-rings that go in the spring lock joints - 2 per joint, so i will be needing 4 of those.

And whats the betting that if i go to Ford they will want to charge me more for 6 O-rings than i paid for the condenser? Would not surprise me with them. That's why i am after the sizes, i do not fancy paying Ford loads of money for a couple of quids worth of O-rings.

So that's the size for the O-rings that go into the condenser fittings, and the size of the O-rings that go on the drier spring lock fittings.

Cheers guys, hope one of you will know, i really don't want to risk putting the wrong size in accidentally.

R reg 1997 Mondeo 2.0lt Ghia 4 Door Saloon Auto. No mods. Gearbox from a later black topped engined car successfully transplanted in place of my original box. (I have a copy of the CD4E service manual - if you need anything, let me know).


#26 RB2004

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Posted 26 May 2013 - 06:44 PM

Can you take a photo of the o rings next to a ruler or something and take rough measurements?

If I have them I can sort you out some :) I can probabalr double check measurements against ECat which is ford parts catalog.

Got a massive box because I'm changing them all the time. Should have some because I did a mk2 condenser last year and while I was at it went round and swapped all o rings so should definitely have some, just dunno now what size is but if you can send me a photo and some rough measurements I will try to work it out.

Will have to check postage rules but if I can will also send some pag oil to lubricate them prior to fitting. Will help them seal better as biggest cause of seals leaking is because they have dried out.

Edited by RB2004, 26 May 2013 - 06:49 PM.


#27 Automondeo

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Posted 26 May 2013 - 10:51 PM

Thank you RB,

Here are some photos, not easy to get good shots because i do not have macro on my camera. Slightly larger images if you click on them.

Here are the two from the condenser fittings, these are not spring lock fittings. These are the ones that i think have an ID of 10mm, the thickness seems to be around 2.5 - 2.8mm. Though they look slightly different in the pictures, i think these two are the same size, they have just been deformed differently.

Posted Image

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The one on the right is from the spring lock fittings. (The image below).
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More of the O-ring from the spring lock fittings. It looks like it's ID is around 14mm, with a thickness of just under 2mm.

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Hope the photos are helpful. Both of the condenser ones are deformed, and one of them is pretty hard, so no doubt need changing. The ones in the spring lock connection also seem a little deformed, so i may as well change them all whilst i can.

There are 2 spring lock joints i have apart, each one contains two O-rings, so that's 4 of them i need. The condenser just as the one O-ring per fitting, so that's 2 of those i need.

Thanks again RB, i will send you a PM regarding your offer of help.

R reg 1997 Mondeo 2.0lt Ghia 4 Door Saloon Auto. No mods. Gearbox from a later black topped engined car successfully transplanted in place of my original box. (I have a copy of the CD4E service manual - if you need anything, let me know).


#28 veralum

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Posted 27 May 2013 - 12:03 AM

RB2004 came round and sorted my aircon out recently and did a lovely job! thanks for that!

highly reccomend him

#29 sgking

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Posted 27 May 2013 - 01:16 PM

good thread
Mondeo 2000 ST24

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#30 RB2004

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Posted 27 May 2013 - 02:46 PM

Hi, thanks for the photos and measurements. I will also cross check it on ECat then sort it out for you today or tomorrow :)




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