air conditioning

[cupo]

just had my air con re gassed the guy put 450 grammes of gas in .does any one no if this is the right amount as with the aircon on its not that cold cheers

[muddle]

Look under your bonnet, sometimes there is a sticker there that tells you

[shokenore]

If he was adding to the original charge then the amount could be right.
However as your aircon still is not cold, and if you pardon the pun there are degrees of cold, why not just take it back and ask them to put it right.
Quite simply you have paid for a service which you have not received.
IIRC the last one I did took 750 or maybe 830 grammes.

[cupo]

air con

thanks for the replies the guy cleaned it out then put the gas in its been back twice now he is saying 450 grammes is the correct amount but it cant be as its shit

[shokenore]

thanks for the replies the guy cleaned it out then put the gas in its been back twice now he is saying 450 grammes is the correct amount but it cant be as its shit

Can you see bubbles in the sight glass?
Is the suction line at the compressor sweating?

Not enough refrigerant,most probably.

[lee01]

just had mine re-gassed, they chap i used vaccumed the old out then replaced it with 720 grams and it works a treat

[Sylux]

Have you guys got converted ACs? I believe mine (which is dead) is not an allowed gas any more.

Need to have it properly checked rather than presuming, like

[shokenore]

Have you guys got converted ACs? I believe mine (which is dead) is not an allowed gas any more.

Need to have it properly checked rather than presuming, like

You can either
use a drop in.
use another gas.

Mine runs/ran on R134a.

[Sylux]

Thought you needed to convert seals etc to get the modern day (or none Japanese old surf) gas in there?

[shokenore]

The post 96 models left Japan with R134a gas being used.Previously they would have used R12.
I think.



There have been lots of studies carried out on the conversion of R12 systems to run on R134a.

Yes there may some issues with seals and yes some of the rubber hoses used may actually be permeable to R134a.

The conversion I did on my truck lasted at least 5 years before the underslung condenser was filled with Salisbury Plain and stopped working.

On my conversion I flushed the old mineral oil and used POE with R134a.

With regard to potential loss through hoses and seals I believe more will be lost through the compressor crank seal, through normal drying out of the seal when the compressor is not being used.

[cupo]

air con

went back up there today he checked on the auto data site they used and it says on there 450 grammes he then said it cud be the pollen filter blocked so I looked there is no filter on there

[shokenore]

went back up there today he checked on the auto data site they used and it says on there 450 grammes he then said it cud be the pollen filter blocked so I looked there is no filter on there

He is probably looking at the data for a much later model ie one that is originally on R134a

[andyverran]

When I had my Smart regassed, he just kept adding gas till the air con went cold....

[shokenore]

When I had my Smart regassed, he just kept adding gas till the air con went cold....

I don't know what is worse, the blatant disregard for enthalpy/entropy charts or the fact you freely admitted to owning a smart car.

[andyverran]

I don't know what is worse, the blatant disregard for enthalpy/entropy charts or the fact you freely admitted to owning a smart car.

..and I have the pictures