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  • FIRST POST
    • JustAnotherSaver
    • By JustAnotherSaver 30th Jun 17, 11:13 PM
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    JustAnotherSaver
    Testing A/C compressor?
    • #1
    • 30th Jun 17, 11:13 PM
    Testing A/C compressor? 30th Jun 17 at 11:13 PM
    I think my compressor is goosed. The A/C was working until a week or so ago and then stopped. I no longer see the inner wheel on the compressor spin when i engage the A/C and the system does still have gas as i've tested the kPa.

    http://www.megavaux.co.uk/Upload/ProductPart/9474e-13124749_air_conditioning_compressor_astra_h__zafi ra_b_ident_wg.jpg.jpg

    That link looks pretty much like my compressor.

    I was told to test the plug to see if it's receiving 12v. That is beyond me, i've no idea how to test it but i can ask the garage at work if they'll do it tomorrow as they should know how.

    Question really is whether i can safely disconnect that plug or will there be a problem (regards the gas in the system)?

    I imagine it should have 12v. If the compressor needs changing does anyone have an idea how long it should take a garage to do?

Page 2
    • AdrianC
    • By AdrianC 2nd Jul 17, 12:23 PM
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    AdrianC
    But we're not going out of our way to be awkward though are we. We're not talking about Opel's and we're not talking about Kadett's
    Originally posted by JustAnotherSaver
    Well, yes, you are. They're the same car from the same factory. It just happens that this one market out of all those the cars are sold into changes the badges and tries to pretend they're something else.

    and we (or at least I am anyway) are UK based. Hop on to any of the Astra owner forums and they'll be referred to as both G & MK4, H & MK5, J & MK6 etc, parts sold online as the same.
    And those UK forums don't include people in Ireland, where the cars have always been Opel badged?
    Nobody buys parts from the internet?

    When we know what someone is referring to it's probably best to just accept that we know what they're referring to for a simple discussion eh?
    And that's my whole point. You think you know what you're referring to. You think you know what somebody else's referring to... But you might be talking at cross-purposes.

    Your comment reminds me of a guy i work with. He came from a similar type of company. We have a product in stock called pipe bedding. He's a driver and will sometimes come to get loaded with this product. He's a strange guy and he will just stand there for an age .... every single time .... arguing that he calls this product pea gravel. Yes, whatever, it's pipe bedding to us. But i call it pea gravel, where i came from called it pea gravel. Yes, wonderful, but we don't. It's the same thing, you know it, i know it so let's get on with it. But i call it pea gravel he'll say again.

    Every...single...time...
    Perhaps he has a point? One day, you'll order "pipe bedding", and what you get won't be what you expect. You'll describe what you expect... "Oh, pea gravel? Why didn't you order that, then?"
    • bigadaj
    • By bigadaj 2nd Jul 17, 4:16 PM
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    bigadaj
    Your comment reminds me of a guy i work with. He came from a similar type of company. We have a product in stock called pipe bedding. He's a driver and will sometimes come to get loaded with this product. He's a strange guy and he will just stand there for an age .... every single time .... arguing that he calls this product pea gravel. Yes, whatever, it's pipe bedding to us. But i call it pea gravel, where i came from called it pea gravel. Yes, wonderful, but we don't. It's the same thing, you know it, i know it so let's get on with it. But i call it pea gravel he'll say again.

    Every...single...time...
    Originally posted by JustAnotherSaver
    Well neither is correct, or at least an adequate description.

    Without seeing exactly what you're using I couldn't be 100% sure but pea gravel is probably a better bet than pipe bedding.

    Pipe bedding is obviously a use, rather than a product. It'll generally be 5-10-20mm washed river gravel, round in nature. The best material for use will depend on the actual pipe calculations, in theory every job should be calculated using Spangler Iowa equations, but people will approximate depending on typical useage and pipe material and size.
    • JustAnotherSaver
    • By JustAnotherSaver 9th Jul 17, 12:42 AM
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    JustAnotherSaver
    Well tbh i think there's awkwardness for awkwardness sake.

    * Pea gravel ... pipe bedding
    * Terram ... swiftec ... geotextile ... scotch lay (or whatever it is they say)
    * 40mm scalpings ... hardcore ... MOT ... 40mm to dust (in total i think we got to about 15 names between another worker and I)
    * ballast ... sand and stone mix ... concrete mix ... plant mix ... 20mm "down" (is there even an UP?!)
    * path edgings ... pin kerbs

    I could go on. It's all the same product really as far as where i work goes. So i ask you - what do you think would happen to me if you as a customer came in and asked for a product under one name and i stood there arguing with you about another name even though i knew full well what you was referring to anyway (like what is going on here)???

    Exactly!


    BUT ........... bringing it back on topic (even though i know we'll have to go over the building materials again ) ..... i had the garage test the feed to the compressor today and there is definite power there. Was reading 14.something volts. 14.4 i think was the number. 14.something anyway. Definite power through it.

    If it's the clutch how do you even determine that?

    At any rate what would be the next step from here?

    • bigadaj
    • By bigadaj 9th Jul 17, 8:11 AM
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    bigadaj
    Well tbh i think there's awkwardness for awkwardness sake.

    * Pea gravel ... pipe bedding
    * Terram ... swiftec ... geotextile ... scotch lay (or whatever it is they say)
    * 40mm scalpings ... hardcore ... MOT ... 40mm to dust (in total i think we got to about 15 names between another worker and I)
    * ballast ... sand and stone mix ... concrete mix ... plant mix ... 20mm "down" (is there even an UP?!)
    * path edgings ... pin kerbs

    I could go on. It's all the same product really as far as where i work goes. So i ask you - what do you think would happen to me if you as a customer came in and asked for a product under one name and i stood there arguing with you about another name even though i knew full well what you was referring to anyway (like what is going on here)???

    Exactly!


    BUT ........... bringing it back on topic (even though i know we'll have to go over the building materials again ) ..... i had the garage test the feed to the compressor today and there is definite power there. Was reading 14.something volts. 14.4 i think was the number. 14.something anyway. Definite power through it.

    If it's the clutch how do you even determine that?

    At any rate what would be the next step from here?
    Originally posted by JustAnotherSaver
    I think irony is the word here.

    Pretty much all of the examples you gave abive are different materials, or some are generic and some specific, such as Terram is a type of geotextile, though is actually a manufacturer. In most cases people would be asking for Terram 1000, but they produce a whole range of materials and it's important to know the right one for the purpose it is being used for.

    You've totally missed the point that Adrianc was making.
    • John123john
    • By John123john 9th Jul 17, 8:26 AM
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    John123john
    The clutch is engaging when you hear the click....

    Compressing?? that depends on if you turn it will it compress gas.

    If you turn it fast enough it will always compress to a degree......even if it is completely worn out.....

    But if it is turning slowly will it compress.....I guess if there is a large nut that holds the shaft, you could apply your 12v to engage the clutch and then use a drill with a socket on the end to turn that nut thereby spinning the compressor to see if you get any kind of suction or compression out of it.

    The Black round type is (forget the names, SunCr knows them) are only $250 for a new one at this OEM GM supply house I know of in Huntington Beach.
    • cajef
    • By cajef 9th Jul 17, 11:11 AM
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    cajef
    The Black round type is (forget the names, SunCr knows them) are only $250 for a new one at this OEM GM supply house I know of in Huntington Beach.
    Originally posted by John123john
    Seeing as you are quoting prices in dollars and Huntington Beach is in California I think we can safely assume you are in America, this is a UK website so information about services in the USA are pretty pointless.
    I used to have a handle on life, but it broke.
    • JustAnotherSaver
    • By JustAnotherSaver 9th Jul 17, 11:11 AM
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    JustAnotherSaver
    Well i'm not hearing the click so i take from that that either the clutch is duff or the compressor as a whole is duff.

    • cajef
    • By cajef 9th Jul 17, 11:25 AM
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    cajef
    At any rate what would be the next step from here?
    Originally posted by JustAnotherSaver
    The next step is to get the system checked out by an Air Con specialist.

    Despite your claim that you have checked the pressure, if the clutch is not engaging it looks like a problem with the pressure if it is too low the clutch will not operate.
    I used to have a handle on life, but it broke.
    • JustAnotherSaver
    • By JustAnotherSaver 9th Jul 17, 3:37 PM
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    JustAnotherSaver
    I used opcom again earlier this week to check the pressure as i had it plugged in for another thing at the time ..... it had actually gone up a bit. It was nearing on 700kpa.


    On the topic of A/C but away from my car, we decided to get my wife's 17 year old Golf in today at Kwik Fit for a recharge. I know i know - Kwik Fit. But they're just connecting a machine and letting it do all the work right?

    Anyway we went back and was surprised to be told that it couldn't be done (so no charge) as it had a leak.
    We've owned this car since 2015. No idea when it was last done. The A/C worked but i personally didn't feel like it was THAT cold. It was cold but not compared to my car (when it was working obviously) which is why we went for the recharge.

    We were told that they tried twice with no joy both times. It had tested 14c though when he brought it out and tested again it was 19c.

    I asked if it had a leak then why was it working at all? Surely it'd have just dumped its contents and wouldn't work at all?

    The guy didn't know.


    Now i can't help but feel that there actually was no leak beforehand and Kwik Fit have done something (though i don't know what) which has created a leak. I don't know whether i feel this way because 1) it was working beforehand or 2) because it's Kwik Fit.

    It is still colder than no A/C but i'm trying to feel whether it's as cold as it was & i'm unsure so at this moment in time i don't know whether it's in my head or what. We'll have to give it time and try again on a scorchio day and if it's not working then then it surely has to be something Kwik Fit did as it'd be too coincidental otherwise i would've thought.

    • AdrianC
    • By AdrianC 9th Jul 17, 3:40 PM
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    AdrianC
    On the topic of A/C but away from my car, we decided to get my wife's 17 year old Golf in today at Kwik Fit for a recharge...
    No idea when it was last done.

    Now i can't help but feel that there actually was no leak beforehand and Kwik Fit have done something (though i don't know what) which has created a leak.
    Originally posted by JustAnotherSaver
    The recharge involves connecting to the charge valves, which opens their sealed ports. If they've not been opened for a long time, then it's entirely possible that they've failed to reseal again afterwards. That's not KF's fault - it's simply that the only thing keeping them sealed in the first place was that they'd stuck in place.
    • JustAnotherSaver
    • By JustAnotherSaver 9th Jul 17, 3:52 PM
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    JustAnotherSaver
    The recharge involves connecting to the charge valves, which opens their sealed ports. If they've not been opened for a long time, then it's entirely possible that they've failed to reseal again afterwards. That's not KF's fault - it's simply that the only thing keeping them sealed in the first place was that they'd stuck in place.
    Originally posted by AdrianC
    I did actually wonder if through age there was something that was a bit brittle (or whatever) that after being disturbed had become damaged.

    So whereas in my case it's looking like a new compressor would be required, if that would be the case with my wife's car then what would be the fix there? Can you even buy new ports? Is it new pipe lines?

    I know it's a case of the if's right now as no test has been done with the coloured gas to determine where exactly the leak is but as i said - we've had it for 2 years this car and the A/C has worked in all that time, just not as cold as it could be being the only thing.

    • AdrianC
    • By AdrianC 9th Jul 17, 3:57 PM
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    AdrianC
    You may well be able to simply change the core of the valve - I believe they're normal Schrader-type tyre valve cores.
    • JustAnotherSaver
    • By JustAnotherSaver 9th Jul 17, 5:08 PM
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    JustAnotherSaver
    I'll have to get it booked in with the proper A/C specialist garage. Unfortunately this is 30 mile away from me but i've used them before & they've been great in the past.

    • AdrianC
    • By AdrianC 9th Jul 17, 5:22 PM
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    AdrianC
    Where on earth do you live that there's no aircon-competent garage within 30 miles of you? Somewhere past Inverness?
    • JustAnotherSaver
    • By JustAnotherSaver 9th Jul 17, 5:52 PM
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    JustAnotherSaver
    Kwik Fit are supposed to be air con competent. They're just around the corner but it didn't work out today.

    I went to them a good few years ago with my own car when the A/C actually wasn't working (unlike today with my wife's car). They said there was a leak but they couldn't say where & basically said i would have to get it repaired before i go back to them, so i guess they don't do repairs (not that i'd go to them for repairs if they did).

    So when someone advertises as doing air conditioning, i wonder to what degree they do it (no funny business with replies about temperature either ) Does a place only offer a recharge service? Or do they offer everything to do with A/C?

    I've done some googling and found one result which i've just 5 minutes ago found out my brother knows the guy so i'm going to find out if this fella does just recharge servicing or whether he could do a proper repair. Hopefully the latter because then he could do my compressor too.

    • AdrianC
    • By AdrianC 9th Jul 17, 5:56 PM
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    AdrianC
    So when someone advertises as doing air conditioning, i wonder to what degree they do it (no funny business with replies about temperature either ) Does a place only offer a recharge service? Or do they offer everything to do with A/C?
    Originally posted by JustAnotherSaver
    There's really three aspects to "doing aircon".
    * There's the gas work. Pulling vacuums, checking pressure's held, regassing. That's all pretty much the same bit of "do-a-then-do-b-then-do-c" kit.
    * There's the mechanical fitting. Pipes, compressors, condensers. Nothing that's any different to any other car mechanical work.
    * There's the electrical/electronic diagnostics. Again, nothing any different to engine management or ABS or body control diagnostics.
    • JustAnotherSaver
    • By JustAnotherSaver 9th Jul 17, 9:01 PM
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    JustAnotherSaver
    That's the problem though - finding out who does what. Kwik Fit clearly don't do anything beyond gassing. Again as i say - i wouldn't want them to but they just advertise as doing air con without many specifics.

    That person i mentioned earlier must do the same because my brother got back to me & said this chap suggested i go somewhere who uses a dye to determine exactly where the leak is coming from.

    I know you can buy kits & such probably from Halfords so i wonder if a lot of these air con guys are just have-a-go-harrys.

    So again i'm back to that garage. I'll just have to make a day of it i guess. Go down in both cars & then leave one at the garage while going off in to the town with the other car.

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