Air Con freon tubes (1 Viewer)

[Figaro]

My cab air con sprang a leak last year and I had it repaired by a mobile guy who replaced the evaporator.
All seemed ok but but it lost the freon after a few days.
He came back and found the high pressure tube had rubbed on the radiator and worn through.
The recommended repair was to cut the tube and re-join with a special compression fitting.
This was done and since then the joint has failed after a few days about 3 or 4 times now, most recently it was gassed two weeks ago and yesterday I took the van for a run, tested the AC and there's no cooling again.
I'm losing faith in this repair now and wondered if a replacement hose was a better option ?
The hose is no longer available, it's a 2003 2.8 jtd x244 ducato, but I wondered if a generic flexible hose was an option, and if anyone might know where to source one from ?
The AC guy should know of course but he hasn't suggested this so far
The original hose is part aluminium part rubber.
TIA

 

[Richard n Ann]

My cab air con sprang a leak last year and I had it repaired by a mobile guy who replaced the evaporator.
All seemed ok but but it lost the freon after a few days.
He came back and found the high pressure tube had rubbed on the radiator and worn through.
The recommended repair was to cut the tube and re-join with a special compression fitting.
This was done and since then the joint has failed after a few days about 3 or 4 times now, most recently it was gassed two weeks ago and yesterday I took the van for a run, tested the AC and there's no cooling again.
I'm losing faith in this repair now and wondered if a replacement hose was a better option ?
The hose is no longer available, it's a 2003 2.8 jtd x244 ducato, but I wondered if a generic flexible hose was an option, and if anyone might know where to source one from ?
The AC guy should know of course but he hasn't suggested this so far
The original hose is part aluminium part rubber.
TIA

I once was called to a big office AC system that was installed with special compression fittings ( vulcan lockring if I recall correctly) . The installer had left out a ring that goes on the inside of the pipes, was OK for a few years then spring lots of little leaks, they were copper pipes but just check he's fitting the fitting correctly if it's an AC fitting and fitted correctly it shouldn't leak.

 

[Lenny HB]

EuroTrotters may know.

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[Figaro]

I once was called to a big office AC system that was installed with special compression fittings ( vulcan lockring if I recall correctly) . The installer had left out a ring that goes on the inside of the pipes, was OK for a few years then spring lots of little leaks, they were copper pipes but just check he's fitting the fitting correctly if it's an AC fitting and fitted correctly it shouldn't leak.

He assures me it's an ac fitting, I described it as compression but it's not like a regular plumbing compression fitting.
It required a large pair of 'pincers' to compress the whole fitting together. No nuts to tighten.
It still seems to be leaking though so wondered if there was a alternative option.
I waiting for ac guy to message me back and let me know what he plans, he must be getting as peed off as me

 

[monzer]

I posted nearly exactly the same a while back. Can't find anyone or anything that can fix it and have now given up. So I'll be looking out for any solutions on here.

 

[gus-lopez]

wondered if a replacement hose was a better option ?

yes

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[Figaro]

I posted nearly exactly the same a while back. Can't find anyone or anything that can fix it and have now given up. So I'll be looking out for any solutions on here.

I'm sure there must be places around that will make up a custom hose but searching so far hasn't found anywhere.
My AC guy has not replied to my text yet, I'm hoping he'll know and isn't ignoring me wanting it fixed under guarantee

 

[EuroTrotters]

yes

I agree.

Are you sure he replaced the evaporator?. That’s a long and complex job.

Do you mean condenser ?

Vulkan Lokrings require a drop of specific liquid to be applied, otherwise they do not seal correctly.

As the high side of the system reaches very high condensing pressures, lokrings may not hold up very well.

I will post some photos of an evaporator change on a mercedes sprinter I carried out (on one leg as I had a broken calcaneus).

 

[EuroTrotters]

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[Figaro]

Do you mean condenser ?

Sorry, yes the condenser which sits in front of the coolant radiator

 

[EuroTrotters]

Sorry, yes the condenser which sits in front of the coolant radiator

I guessed as much

 

[Figaro]

Vulkan Lokrings

Yes they look like the fitting he used.
Seems he didn't know about the fluid to seal it ?

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[Figaro]

And this is the tool he used

 

[EuroTrotters]

I have two sets. Apart from a job I did at Manchester airport, I never use them .

https://www.youtube.com/@vulkanlokring2918

 

[monzer]

There must be some place that would fit up a replacement hose?

My original part has a rubber section and pipe but so far no one wants to know. Too dirty to weld so reckon a new piece made up would be the best solution.

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[oldiesontour]

Hydraulic hose ? Not my field but would have thought a not as high in pressure,plant hoses made to specifics readily available..ask a plant hire company. Check if any chemical effect someone on here will know

 

[stevewagner]

Instead of waiting for him to text you why don’t you call him?

 

[Figaro]

Instead of waiting for him to text you why don’t you call him?

I'll call him Monday if he's not replied

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