Ac Problems

[akabubbles]

hi guys , my ac has no gas,in it and wont blow cold. just wandering if my (93 R32 GTR) can it it take the new oil without changing current compressor / set up ? cause the mechanic mention something about the old gas is not available anymore. i am in Melbourne any recommendation to the my ac system checked out and fix .

thanks

[triggerhappy]

Old gas should be still available. I would change all seals before regassing it. Only saying this as i regassed mine then it leaked and had to change the seals and repeat the process

[sleptema]

First off, no one should be regassing without a license.

Secondly - if it has no gas, it means it leaked out. Do it properly - pressure test and vac(fix the leaks), add oil and dye, then regas.

[triggerhappy]

Who said anything about regassing with out a license?

[sleptema]

Who said anything about regassing with out a license?

Just curious as to why someone would gas up without doing the proper checks for leaks w/ nitrogen. Comes across as someone hasn't done the training and acquired the license.

I know of a lot of mechanics who just regas without checking the system for leaks, annoys me to no end. If this isn't the case, disregard me.

[triggerhappy]

it was actually done by a licenced person from home who didnt have any nitro to pressure test it we did it with gas the second time just to be sure. Assumption the mother of all....

[MrStabby]

Yes the new gas can be used in the old system, though its typically less effective. The axillary fan on always with AC on is a good mod.

http://www.sau.com.au/forums/topic/153378-r32-have-your-overheat-fan-turn-on-with-your-ac/

Concur with sleptema - seals first and see if it leaks.

[akabubbles]

thanks MrStabby, you answer my question i needed to know

[jiffo]

Just post a picture of your charging valves, that will answer your questions.

[akabubbles]

jiffo ?

[Scott Black]

dryer needs to be changed if going from r12 to r134a, oil to depending on what oil is in it, then two valve adaptors installed,
also technically your not allowed to put r12 in cars any more anyway, and cars need to be leak tested before regassing (vacc and hold pressure for atleast half an hour, nitrogen is just useful for finding leaks that are a bitch to find) or your going against the terms of your arctick licence.

alternativly hychil can be done without a licence yet thats opening another can of worms, and thats only if there is no gas in the system at all or it needs to be recovered by a licenced person

what jiffo is saying is take a photo of the little valves on the aluminimum lines in the engine bay to show what type they are

http://www.aa1car.com/library/ac_service_fittings.gif

that shows the difference

Edited January 8, 2015 by Scott Black

[GH05T]

i went to a dodgey guy, i say dodgey just becuase he gassed it up and said if it leaks out just come back and well look for leaks then. even i just thought why not just fix them now.

funny thing was it never leaked out. well 1 year later still worked so maby super slow leak

[Scott Black]

average system takes around the 650g of gas mark, some leaks are as small as a few grams a year, say you have a small 15 gram a year leak, its still going to work pretty well for 3 years or so, and after that will just fail to be as cold as it should then stop all together.
in the code of practise for auto ac (2008) it says that you should service (pretty much leak check, regas and change the dryer out) every 5 year

http://www.arctick.org/pdf/Automotive_RAC_CoP.pdf

page 13 (dryer needs to be replaced every regas, and needs to be regasses every 5 years)
page 16 (needs to be leak checked whenever regasses)
page 18 (need to tell you to run the system for atleast 5 min weekly to keep it healthy)

just random information that most people dont know, and arnt told

[mad082]

Rather than starting a new thread, I'll just ask the question here.

How can I check for air con leaks? I'm pretty sure that the system had dye put in it when it was regassed a few years back (had work done that required the gas to be vaccines and regassed) and I'm pretty sure that the system has since developed a leak.

I know that a uv torch is used, and some yellow glasses, but I'm just wondering if it's a special torch, or any old uv torch/blacklight that I can buy off eBay for a few dollars?

Oh and the car is currently unregistered and I'm just in the process of getting it back on the road (so I can't just drive it to an aircon place and get it checked)

[GTRR]

Hi All, can someone recommend me a air con specialist to have a look at my r32 GTR in Sydney please? prefer local Western subs but can travel.

[R.3.2.G.T.R]

Hi All, can someone recommend me a air con specialist to have a look at my r32 GTR in Sydney please? prefer local Western subs but can travel.

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