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Is there anything to SEAL the AC system???

V8 Supercharger

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Im not entirely sure if anything exists for this, but the problem is a little weird and could get quite expensive if i go down the usual route.

Problem is that my AC has a little leak in it somewhere, and i do mean little. Have had it pressure tested, with dye, and after being left overnight for 2 nights it dropped a little bit of pressure AND leaked the smallest bit of dye but the guys cannot be 100% sure where its coming from. They think its either the compressor itself or somewhere near the compressor, but just too small to be 100% certain.

The first night they pressurised it upto 400 Bar, 18 hours later when they checked it was down to 380. The next night they pressurised it back upto 400 Bar and the next day it was down to 390.

The AC gas in there usually tends to last about 4 months before it stops working, and the techs words were that this was the smallest leak he had ever seen.

Like i said i dont know if such a thing exists, but i was thinking if there was something that could be added to the AC gas that would go around internally and perhaps be able to seal the hole up. Like RadWeld for radiators or similiar.
 
I have not come across any thing to seal a leak in the AC system. Don't some specialists use a probe that sniffs out a leak using a special gas they put into the system.
 
Not that this will help necessarily in this instance, but it may have contributed to the cause:

An A/C specialist explained this to me once...
It's worth remembering to always use the A/C even when it's not needed. The oil in the refrigerant will then continuously lubricate o'rings and prevent them from shrinking or cracking over time.
 
Mix some egg white in with the R134a...
biggrin.gif
 
It's worth remembering to always use the A/C even when it's not needed. The oil in the refrigerant will then continuously lubricate o'rings and prevent them from shrinking or cracking over time.

I too was having similiar thoughts, that its something like an o-ring or clamp that has cracked or moved and is causing the leak. But what ever they tried, they could not be a 100% certain where it was coming from.
 
I have not come across any thing to seal a leak in the AC system. Don't some specialists use a probe that sniffs out a leak using a special gas they put into the system.

Never hear of probes sniffing out gas, the usual for me has always been the dye test. The chaps at the garage never mentioned anything either.
 
a while back an a/c tech ran blue dye through my system,( most likely to detect a leak). it some how ran for 2 summers without a re-gas lm not sure if it doubled as a band aid ..
 

Seems like there is a sealer after all. :thumb:

Just a very very brief search has pulled up this, which may or may not work 100%.

Brand New Airco Seal Pro A/C Leak Sealer Aircon Service Kit | eBay

Apparently it seems to work only on the low pressure side of things, id assume the compressor or anything near it would be on the high pressure side???
 

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