Jump to content
SAU Community

Air Con

s1.533

By s1.533,
in General Maintenance

 Share

Recommended Posts

s1.533 Community Regular

s1.533

Posted
Posted

hey guys,

just got my air con regas. anyways when putting it on 3rd speed it seem colder than the 4th speed. the 4th speed would blow stronger but not as cold. the guy told me there;s a very little leak in the system so he put in some dye to see where its gonna leak, he said ill last for this summer at least. 40 in melb today all i can feel is its like a fan blower. but before it get really hot the air con seem cold not so bad.

hope that make sense

Link to comment
https://www.sau.com.au/forums/topic/254876-air-con/
Share on other sites
axe s Experienced

axe s

Posted
Posted (edited)

your air con seems cooler on 3 because the air is moving over the coil slower giving it more time to cool, on 4 it is moving to fast to cool properly... <------ indicating a leak...

He should not have told you that their is a small leak on it and he's gassed it up to get you through summer (that is illegal he can be fine majorly for that...)

i would be taking it back and asking him to do the job properly...

Edited by axe s
Link to comment
https://www.sau.com.au/forums/topic/254876-air-con/#findComment-4398852
Share on other sites
axe s Experienced

axe s

Posted
Posted

so u would tell a customer that you have broken the law by putting refrigerant into a system with a know leak, so he can go and tell everyone...

I suggest you look up the conditions of your refrigerant handling license...

Link to comment
https://www.sau.com.au/forums/topic/254876-air-con/#findComment-4398872
Share on other sites
axe s Experienced

axe s

Posted
Posted

wouldt have a clue on $ depends where the leak is... most likely a hose so it shouldn't be to much... but then you have the price of the refrigerant and labor on top...

just take it back to him and tell him to finish the job... he should be able to find the leak if he put dye in...

Link to comment
https://www.sau.com.au/forums/topic/254876-air-con/#findComment-4399368
Share on other sites
Guest 40th-edition

Guest 40th-edition

Posted
Posted

i do ac regassing everyday, champ is right about the air traveling slower over your evaporator so there for colder. i only test the temp on low speed so you get the coldest reading.

i see most leaks from orings, the gas is the expensive part. if he put dye in there he should have found leak before he let you take it.

let us know how you go

Link to comment
https://www.sau.com.au/forums/topic/254876-air-con/#findComment-4399398
Share on other sites
tom9999 Community Regular

tom9999

Posted
Posted

yeah there are only a few common places where they leak. orings are the go. He should of pressure tested with dye nitrogen at 1.5 times operating pressure. then vac the system and should get under 500 micron and cant rise 100 micron in the hour. if it does you have a leak or moisture in the system. then charge it with R134a.

hope this helps

Link to comment
https://www.sau.com.au/forums/topic/254876-air-con/#findComment-4399573
Share on other sites
GTROB Collaborator

GTROB

Posted
Posted

If you can get him to put a gas in there called -30 or even ER12. Alot of place don;t like as on later model car (2000 and on) have a seconday low pressure cut out switch in the compressor and it can play up. The other thing alot of A/C places don't like about it is the fact it has A % of butane (BBQ gas) in it and that scares alot of people off. The % is VERY VERY low and would never cause any issue. In fact butane is one of the best refrigerants around The beautiful thing about -30 or ER12 is they run ALOT lower head pressures, so the stress on your A/C is alot less which in turn lower the chance of leaks. Also not as much power to drive the system. I have it in my R32 GTR and it works a treat. When I was running 134A in there the A/C was ok but on hot days it just wouldn't keep up. Put -30 in and cool as. Just to prove how much more efficient it is a R32 GTR takes approx 750 grams of 134A and of -30 it took 275 grams. Head pressure are down by approx 40%.

Hope that is of some help.

thanks for the help guys

ill bring my car back in tomorrow morning.

anything i should say to him? and how much am i looking at? dont wanna get rip

thanks

Link to comment
https://www.sau.com.au/forums/topic/254876-air-con/#findComment-4402692
Share on other sites
s1.533 Community Regular

s1.533

Posted
  • Author
Posted (edited)

ummm I'm not sure what I got on my air con

He was using a gas bottle that look like the one you use for BBQ its on a trolley and it a red and a blue house with a gauge on it

Still haven't brang in the car to him yet.

He was nice for giving me a set of 4 r33 kyb strut with no top LOL

Edited by s1.533
Link to comment
https://www.sau.com.au/forums/topic/254876-air-con/#findComment-4403309
Share on other sites
GTROB Collaborator

GTROB

Posted
Posted

Yeah R12 got phased out in about 2000. But there is a gas out there called ER12. Its a blend gas made by origin. Really good stuff. If you are doing alot of A/C it would pay to look into it. Both ER12 and -30 or minus 30.

R12 is not used anymore.... it got phased out years ago due to it been a high ozone depletion refrigerant.

never heard anything about -30...

Link to comment
https://www.sau.com.au/forums/topic/254876-air-con/#findComment-4403546
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      33 GTR Broken front wheel knuckle

      By GTSBoy · Posted

      That's probably OK. That's a face to face compression joint between two surfaces with the clamping load provided by those bolts. So.... it's unlikely that the bolts will end up feeling that load in shear, unless the clamping surfaces are not large enough, bolts not got enough tension on them, etc etc to prevent the two faces from moving wrt each other. Which... I would hope the designers have considered, seeing as it's probably one of the most important things the upright has to do apart from resist collapsing in its own right. But yes, it would definitely be worth asking them what their safety factor on that part of the design was. I tend to think that the casting, being a casting, is not necessarily the strongest bit of material in the world. It's about an inch square, and when you think about the loads that are being put into it, you have to wonder what safety factor the Nissan boys (and every other OEM engineer who has designed all the millions of other uprights that look essentially the same) used to account for defective casting, aging, severe impacts on the wheel, etc etc. 
    • R32 TT
      33 GTR Broken front wheel knuckle

      By R32 TT · Posted

      Those bolts would be orders of magnitude stronger that cast aluminium though.  And its mainly clamping force, not shear they are dealing with?
    • MBS206
      33 GTR Broken front wheel knuckle

      By MBS206 · Posted

      Except all that twisting force that is breaking a cast piece, appears to be going through 4 bolts in the picture Johnny posted of the BryPar one...
    • GTSBoy
      R34 auto to manual conversion help

      By GTSBoy · Posted

      The smart approach is to use the gearbox loom from the manual car. Makes it a lot easier - just plugs into the switches on the box and plugs into the main loom up near the fusebox. Then you only need to deal with bypassing the inhibit switch. The other approach requires you to use the wiring diagram to identify those wires by colour and location, perhaps even indulging in a little multimeter action to trace them end to end to make sure, and then.... you will have the answers you need. The R34 wiring diagram is available on-line (no, I do not have a link to it myself - I would have to do a search if I wasn't able to go to the copy I have at home).
    • Manur33
      R34 auto to manual conversion help

      By Manur33 · Posted

      Hi, i’m converted my r34 4dr auto to manual but need help with gearbox wiring. There are bunch of wires no idea which one for speedo drive, neutral, reverse can anyone help me. IMG_6860.mov
×
×
  • Create New...