Sorry to maybe beating a dead horse subject BUT......
Have a 70 2800CS that we installed a complete AC system from a junked 72CS. This was done in early 90's. Only update then was new expansion valve and a rotary compressor. Stock condenser, evaporator, new hoses, and retained r12.
System has worked well and still is okay but have been living in Florida for many years and cooling is less than optimum. SO we are now going to bite the bullet and upgrade using a parallel flow condenser and newer compressor, etc.
BUT we have called every reasonably local AC shop. No one has capability to evacuate the r12, let alone re-charge the r12. We have read all the past great threads on the AC upgrades and most recommend staying with r12. But that does not seem to be an option here. So how are we suppose to get rid of the r12 legally to do any maintenance and upgrading.?
Are we forced to go with r134a with the loss of effective cooling. r12 cans are available on eBay and Craigs list, but one needs a licence to buy. We do have the equipment to install r12 from the cans if we could only legally buy them..
Bottom line how is the performance of 134a, which in time is probably the only way to go. Are the gains in updating to a parallel flow condenser offset by going to r134a? If so we might just leave it as is for now. In a few years the engine is going to be refreshed requiring yet another opening of the system.
Also what is the purpose of part number 1 Vibration damper 64531353040 can is be removed. It is part of our system but does not seem to be mentioned in the past posts.
http://www.bmwmobiletradition-onlin...el=4512&mospid=47247&btnr=64_0900&hg=64&fg=55
Finally has anyone installed a modern evaporator unit while retaining the stock appearing console and face plate. Seems to us that a modern evaporator with faster fans would be the best upgrade option to go to 134a.
Thanks
jjs2800cs
Have a 70 2800CS that we installed a complete AC system from a junked 72CS. This was done in early 90's. Only update then was new expansion valve and a rotary compressor. Stock condenser, evaporator, new hoses, and retained r12.
System has worked well and still is okay but have been living in Florida for many years and cooling is less than optimum. SO we are now going to bite the bullet and upgrade using a parallel flow condenser and newer compressor, etc.
BUT we have called every reasonably local AC shop. No one has capability to evacuate the r12, let alone re-charge the r12. We have read all the past great threads on the AC upgrades and most recommend staying with r12. But that does not seem to be an option here. So how are we suppose to get rid of the r12 legally to do any maintenance and upgrading.?
Are we forced to go with r134a with the loss of effective cooling. r12 cans are available on eBay and Craigs list, but one needs a licence to buy. We do have the equipment to install r12 from the cans if we could only legally buy them..
Bottom line how is the performance of 134a, which in time is probably the only way to go. Are the gains in updating to a parallel flow condenser offset by going to r134a? If so we might just leave it as is for now. In a few years the engine is going to be refreshed requiring yet another opening of the system.
Also what is the purpose of part number 1 Vibration damper 64531353040 can is be removed. It is part of our system but does not seem to be mentioned in the past posts.
http://www.bmwmobiletradition-onlin...el=4512&mospid=47247&btnr=64_0900&hg=64&fg=55
Finally has anyone installed a modern evaporator unit while retaining the stock appearing console and face plate. Seems to us that a modern evaporator with faster fans would be the best upgrade option to go to 134a.
Thanks
jjs2800cs