Changing the ac compressor.

[Carlosos]

Hello. After a bit of help with the above. Compressor is getting changed because extreme bearing play and noise.

I’m happy doing the mechanical side of things but I’ve never played with ac stuff before. Is it a case of simply empty the system of gas change parts and then take to be gassed up?

Ecp sells recon compressors do I need to add oil? How do I know?

Do I need to change the drier? Can’t find any information about these on v70’s.

2004 prefaclift 2.0t petrol.

[stuart bowes]

AC systems should be de-gassed by a professional using equipment that safely extracts it without venting it off the the outside world, it's bad for the environment

only a complete douche would let out the gas by just disconnecting a pipe it would be like disposing of your engine oil by pouring it down a drain

A/c places should be able to extract it for you

[Carlosos]

Originally Posted by stuart bowes

AC systems should be de-gassed by a professional using equipment that safely extracts it without venting it off the the outside world, it's bad for the environment

only a complete douche would let out the gas by just disconnecting a pipe it would be like disposing of your engine oil by pouring it down a drain

A/c places should be able to extract it for you

That’s a given but doesn’t help me with my question unfortunately.

[Willber]

In answer to your original question; yes it is simply a question of removing the gas (get this done by a professional) remove old compressor, fit new conpressor and then have it gassed up (by a professional ideally). You add the oil when it is being gassed up usually I think.

You dont need to change the drier unless there is something wrong with it.

Looks pretty simple from what I can tell. Removing the pipe to throttle body should give enough room to wiggle it out towards the airbox.

[Carlosos]

Originally Posted by Willber

In answer to your original question; yes it is simply a question of removing the gas (get this done by a professional) remove old compressor, fit new conpressor and then have it gassed up (by a professional ideally). You add the oil when it is being gassed up usually I think.

You dont need to change the drier unless there is something wrong with it.

Looks pretty simple from what I can tell. Removing the pipe to throttle body should give enough room to wiggle it out towards the airbox.

That answer part of my question so Thankyou. How do I know if I add oil now or later?

[Joe Harding]

I concur with other comments in this thread. Get the gas sucked out by a professional garage. They will probably want the replacement work but you can argue them out of that. Do the compressor refit - you will need to ensure all the seals are good and invest in a UV torch for later. Then you can take it back and get it rehashed. The oil will be introduced with the regassing. Then you can check it for leaks with the UV torch.

[stuart bowes]

Originally Posted by Carlosos

..Is it a case of simply empty the system of gas..

this is the question i was responding to and even if you are aware of the laws which I did think you might be to be fair (hence the poking out tongue thingy) others might not be when coming across this in future and I wanted to make it very clear

apologies if that caused any offense

[Carlosos]

Originally Posted by stuart bowes

this is the question i was responding to and even if you are aware of the laws which I did think you might be to be fair (hence the poking out tongue thingy) others might not be when coming across this in future and I wanted to make it very clear

apologies if that caused any offense

No offence taken at all. The bloody minutia of easy jobs like this drive me crazy because if you get it wrong it can be very costly but where do you find the info.

[Clan]

Originally Posted by Carlosos

Hello. After a bit of help with the above. Compressor is getting changed because extreme bearing play and noise.

I’m happy doing the mechanical side of things but I’ve never played with ac stuff before. Is it a case of simply empty the system of gas change parts and then take to be gassed up?

Ecp sells recon compressors do I need to add oil? How do I know?

Do I need to change the drier? Can’t find any information about these on v70’s.

2004 prefaclift 2.0t petrol.

Firstly and most importantly :
Since 2010 it has been illegal to tamper with any AC system unless you have the certification equipment and training to do so , the fine for willingly letting AC gas into the atmosphere is up to £40,000 .
Also you could be severely injured by frostbite if a jet of the liquid gas sprays on your skin .

Before fitting the new compressor you must drain out as much ( if any ) of the oil in it as possible and then pour into the inlet port 70 cc of new PAG oil . It must not be put in with the gas . The person who drains the system will know how much oil came out with the gas and that same amount must be added back with the new gas .

[Carlosos]

Originally Posted by Clan

Firstly and most importantly :
Since 2010 it has been illegal to tamper with any AC system unless you have the certification equipment and training to do so , the fine for willingly letting AC gas into the atmosphere is up to £40,000 .
Also you could be severely injured by frostbite if a jet of the liquid gas sprays on your skin .

Before fitting the new compressor you must drain out as much ( if any ) of the oil in it as possible and then pour into the inlet port 70 cc of new PAG oil . It must not be put in with the gas . The person who drains the system will know how much oil came out with the gas and that same amount must be added back with the new gas .

Thanks for you help with that.

I’ve spoken to the guy who will be draining the system and he’s going to leak test it first to see if I need to change anything else. Ill chat to him on the day but is there a reason you say 70cc of oil? The Nissans instructions quote 150ml?