Ever recharged your car's AC?

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OP
OP
swee'pea99

swee'pea99

Legendary Member
Ok, so it appears the answer's no! No-one knows if that's a cap I have to remove, or whether removing it will turn me instantly into the abominable snowman. Hmmm. Well, I've emailed the vendors, maybe they'll be able to tell me.

As to why bother, well, I generally like to do things myself if I can, and from my researches I see nothing very challenging about it. There's a valve on the car, to which you attach a simple clip-on fixing attached to a hose. At the other end of the hose is a can of pressurised gas. Turn a tap to puncture the can and gas flows through the hose and into the system, via a dial that tells you when you've put enough in. I think I can manage that. And when I do, it'll take five minutes and cost under a tenner. Makes sense to me.

As to fixing the leak, I'm pretty sure I know where it is, and how to fix it. The system has valves on both the high and the low pressure. When I remove the cap on the low to connect the hose, I hear a slight but distinct 'fst'. So the valve - which is after all just a bicycle tyre valve, and 12 years old - would seem to be leaking. No great surprise there. But replacing it, again, looks pretty straightforward. I may have a go at that next.

For the moment, though, I just want to charge the system and see how it goes. If it gets us through the rest of the summer, I may decide just to live with the leak and buy more cans as & when I need them. If it doesn't, I'll either replace the valves or have the garage do it. If I had to guess, I'd say I probably will start out by having a go myself. Can't see any real downside. Of course I'd do a bit more researching before I decided/did.

As to where I got the kit, ebay. Five cans of gas for £25, about a tenner for the hose. Oh, and no, it's not a left hand thread. It's regular, and looks like the right size for the fitting...just proves to be a fraction too large. Which is why I'm hoping the blue cap will prove to be just that and, once removed, will expose a thread that's just the right size! We shall see!
 

classic33

Leg End Member
I mentioned the left hand thread because some connections use them. To avoid you using the wrong gas, in the wrong appliance.
 

Levo-Lon

Guru
I'd think the cap, with a thread stays on.
You screw it on and it gets pierced so yo dont loose the gas, single use
Bit like a gas bottle for pumping up your tyres

You then use the tap and I'm assuming you have a quick release valve connection for removal.
It will work but its not as good as using the garage, or a refrigeration engineer
 

glasgowcyclist

Charming but somewhat feckless
Location
Scotland
hammernail.png
 

Globalti

Legendary Member
I'm with the OP on this. There's nothing wrong with taking an intelligent approach to this kind of thing if you understand the physics involved. Cars are designed to be repaired by idiots so the job has to be simple. (No slur on the OP intended here!)
 
D

Deleted member 26715

Guest
If so, d'you know whether the blue thing is a cap that needs to be removed for the brass bit to engage?
First & foremost I have not done this or know howto, but, to me it looks like you leave the blue bit on, then screw the brass over the top of it, these will be made as cheap as possible so the thread will not be very good, it will rely on the green rubber making the seal. Once it's screwed on as others have said the lever then will puncture the blue seal, I would be very reluctant to pierce that with a screwdriver.

You will need to ensure that you are holding the brass valve absolutely flat against the top of the gas canister & it may need a bit of force to engage the thread, the valve will compress the canister & effectively cut it's own thread by squashing the rough thread there.

However having said all of that if the leak is not through the schrader valve & somewhere else in the system you are wasting your time/money.
 
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