regassing the air con?

[brundish24]

as title has anyone regassed the air con on a FD using one of them cans you can get from halfords or any car place.

[ashc]

if you have a 94 fd with r134 it is ok so long as there are no leaks - it took one and a half cans to get the aircon working on my car. i have done it twice successfully (after system emptied during v-mount install etc)

[brundish24]

mines a 93 fd but not sure if its r134 but i heard it doesnt matter if you mix it.

[ashc]

late 93 might be r134a, early will be r12 (toxic!)

a. r12 and r134a definitely do not mix, they precipitate and will ruin the pump
b. the halfords can has a connector that will not fit on a r12 system anyway

[brundish24]

is there any way i can find out.

[festa]

you should just pay the money and get it regased by some one who knows what they are doing, the replacement gas for r12 is r134a its fine to do as long as you add some syntetic refrigeration oil to the system .
when you regas useing a top like the halfords one the compressor will run short of oil and fail.
when the gas leaks it takes all the oil out with it so the compressor runs dry .
134a systems have large charging points the plastic cap will be about 20mm round, r12 systems have smaller charging points with caps that are about 12mm round.
Cheers

[brundish24]

cheers festa i think i will just pay the money to get someone who knows what they are doing beside a can of the stuff is 50 quid and for someone to do it is about 50 i think well they say FROM 50 pounds...

[festa]

if your round the london area I can do it for you, a look at your car and a beer is my charge
Cheers

[jon103a]

the old gas r12 gas  has a different connector, looks like a screw fit style  car tyre valve. the current gas r134a has a bigger snap on style connector. they use different oil types to lubricate the system and the r134a gas will not carry the old mineral oil round the system causing it to sieze (put simply), jon.

[festa]

the old gas r12 gas has a different connector, looks like a screw fit style car tyre valve. the current gas r134a has a bigger snap on style connector. they use different oil types to lubricate the system and the r134a gas will not carry the old mineral oil round the system causing it to sieze (put simply), jon.

What your saying is true to a point, but being a refrigeration engineer by trade and regasing a few cars in my time I think I know what I\'m talking about
Cheers

[jon103a]

What your saying is true to a point, but being a refrigeration engineer by trade and regasing a few cars in my time I think I know what I\'m talking about
Cheers

simplified was the key point. your right being a refrigeration engeneer- i am only an ata accredited automotive air con engineer and have only worked on cars for 15 years. i probably dont know as much. jon

[brundish24]

so where abouts on the car is the connector is it on the air con pump?

[jon103a]

on the alloy pipes under the bonnet, there should be two very slightly different ones, one being slightly bigger than the other(again simplified) just follow the pair of alloy pipes from the condensor(air con rad) and you will find them. jon

[jon103a]

p.s if you use the refill cans they already have some oil included but if your system is leak free there will be plenty of oil in the system anyway, if you have a leak and have lost oil it wont matter as you will loose the gas again anyway. if you check ebay there were also some cans that include a sealant for very minor leaks, a can generally does half a fill/ top up.  good luck. jon.

[festa]

I was being sarcastic by saying a few cars I owned a mobile car air conditioning bussines back in NZ.
Good choice on your job I\'m not questioning what you know I\'m sure you know your stuff and no ofence intended, I just don\'t like the regas cans because when the general public use them thay no way of knowing how much refrigerent to put in and most people don\'t own a vacume pump,gauges etc to make sure the jobs done right also refrigerents can be dangerous thats why people in the trade have licences to handle them and thats why I\'ll always tell people to get it done by someone who knows what they are doing also kwik fit etc only charge about £40 to £50 and warenty their work so why risk doing damage to your car for a saving of about £10 on a diy kit.
Cheers