Ferrari Mailing List: Re: Anybody got knowledge about AC recovery systems

[Peter Rychel (dino308gt4]

Paging Robert Garven… He actually has HVAC certification! Ha!

Not sure if it’s worth the effort to keep R12. When I rebuilt the A/C system for my GT4, I ran “Duracool” through it and it worked quite well - for what it was, a 1970s Italian A/C system. Duracool is a propane-based refrigerant I believe, but the biggest draw for me is I can get it off-the-shelf at numerous auto stores here. In the long run, it doesn't matter because the stuff - any of it - will leak out anyways! The older York-based compressors use simple shaft seals that only provide one contact surface to retain the refrigerant. It eventually seeps past. If you're lucky, the 512 may be using a rotary style compressor with multiple contact seals, but don't count on that to last a long time. 

Other than deteriorating hoses, the shaft seal is the area where refrigerant can leak out. Make sure that is viable before doing any of this work.

Peter

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From: Ferrari <ferrari-bounces+dino308gt4=hotmail.com [at] ferrarilist.com> on behalf of BRITT ROTHMAN via Ferrari <ferrari [at] ferrarilist.com>
Sent: Sunday, August 21, 2022 1:18:08 PM
To: PeterGT4 <dino308gt4 [at] hotmail.com>
Cc: The FerrariList <ferrari [at] ferrarilist.com>
Subject: [Ferrari] Anybody got knowledge about AC recovery systems

 

Hi guys,

Does anyone have knowledge of AC recovery systems? Basically, I need to drain the r12 from the car to change the expansion valve. I don’t want to lose the R12. I can’t goto a commercial operator because they don’t want R12 and it’s illegal to put back in the car.

I want to buy the equipment to drain the system into a tank and then pump it back in when the repair is made. I have a good AC vacuum pump but it’s not going to work to do this so what do I need to buy? It should be simple, a pump to pull it out and stick it in a container. I think I can buy a container here in Sweden ( they aren’t cheap and I don’t see a way to air fright such a think so I have to buy it here) but what about the pump. 

Is that what a machine like this does? Anybody have any experience in this?

https://eur.vevor.com/recovery-machine-c_10323/vevor-portable-refrigerant-recovery-machine-3-4-hp-single-cylinder-air-condition-p_010743194216?gclid=Cj0KCQjwr4eYBhDrARIsANPywChQC_ddjmM9J_XnSxkGic9wOy-GjcMPpyRYTP0-QCEJMhug9-pSYtgaAl76EALw_wcB

BR in Stockholm

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