seems like its only the high pressure line is leaking. I assume you torqued the connector to the right value?
You replaced the Orings? is there any damage to the new one after mounting it? If there is still a gap after fitting the connector sometimes the rubber gets squeesed in there.
Can you also check the hose side? AFAIK both the hoses are bolted on with only one bolt. Sometimes the hose "block" is a little bent and thus it will not seal correctlym Check for flatness on "block".
Bending can be caused by over torquing (I believe it's all just alu) or incorrect fitting.
Did you compare the new and old seals? see any damage?
Thank you for explanation.
Last year AC works perfect, but during winter gas goes out of the system. I went to mechanic and refill gas in system with UV coloured oil. After one week gas goes out of AC system, after investigation we see lacking on this hose connection ‘’block’’
Here is original seal gasket from high pressure hose, there is some rubber damage but this can be damaged during removal and assembly of connection hose.
I ordered new seal gaskets and replace them, we refill system again and after two weeks pressure goes out of the system on same place.
With mechanics we start investigation why is this lacking. We remove hose connection box we clean surface and assembly hose box again. After this we checked system with nitrogen. We filed up to 12 bar and after half an hour pressure falls below 10 bar on both hoses low and high pressure:
On this seal gasket I see some rubber damage, but I’m not sure when this damage was happen. Maybe this can be damaged during several removal and assembly inspections:
I ordered new seal gaskets and replace them, before replacing we again clean surface in lubricate seal gaskets with UV coloured oil, we assembly hose connection box and try again with nitrogen. We filed system up to 12 bar. After half an hour pressure falls to 11 bar on high pressure hose, on low pressure hose pressure stays on 12 bar.
It seem that system leaks again on same place, we refill system with gas and UV oil. Now AC work seven days but I’m not sure if AC will works further.
I see in E-learn that screw on hose connection box need to be tighten between 1,8 and 2,2 Nm of torque. This is quite small vale is this value proper?
How can be rubber damaged if we lubricate rubber with oil and washer catch the gap between hose connection box and compressor?
Here is picture from the bottom after one week, AC still works but high pressure hose connection still leaking...
I still don’t have other idea why gas is leaking on this place except that something is wrong with hose connection block.
I will ordered new AC hose and seal gasket, maybe this hose connection block is bended?