'71 A/C information, please
Thread Starter
Racer
Joined: Jul 2006
Posts: 266
Likes: 1
From: S.E. Michigan
St. Jude Donor '07-'08-'09-'10
'71 A/C information, please
My '71 factory air coupe A/C system was disconnected since before I got it several years ago. The compressor will spin (no belts), but there are no hoses hooked up to it. How long will the road be ($$) to restore my A/C? I'd kinda like it to stay Freon. Thanks. 
Race Director
Joined: Sep 2001
Posts: 10,560
Likes: 439
From: Wellington, FL
St. Jude Donor '11 thru '25
You first have to determine what required a/c parts you have and then if they are in working order. You can then determine what it will cost to get the system back in service. Good luck.
Last edited by Jud Chapin; Jul 8, 2007 at 10:56 AM.
Thread Starter
Racer
Joined: Jul 2006
Posts: 266
Likes: 1
From: S.E. Michigan
St. Jude Donor '07-'08-'09-'10
Yup! As is usually the case... I'm in the process. It's interesting to note, however, that to figure out what I need, I need to figure out what I need.... 
I LOVE this stuff!!
I LOVE this stuff!!
Drifting
Joined: Jul 2005
Posts: 1,562
Likes: 2
From: Spring Texas
Since your system has been completely open for several years, all major components (condenser, evaporator) need to be flushed and pressure tested. These may need to be removed for flushing which can pile on the labor cost. You will need a new drier, probably a new POA valve, hoses and seals. Your compressor is probably bad, but the A6 type compressor is easily rebuilt, so you can keep your original if that is an issue. Reman A6s are not expensive compared to newer compressors. The compressor clutch is prone to failure, so it should be replaced. Bottom line, $1k if you get some friendly discounts and do some of the work yourself, and with a little bit of luck. Expect $2k or more at a shop. Do you really need AC in Michigan?
Instructor
Joined: Feb 2007
Posts: 247
Likes: 0
From: South of GR MI
Pro
Joined: May 2002
Posts: 518
Likes: 17
My 71 was like this when I got it, and I sourced a rebuilt compressor, new hoses, bone yard brackets, plus a new reciever-dryer and POA valve, though I left the rest as it was and and pulled a vacuum on it for a long time before charging.
It's been good for 15 years and counting...
It's been good for 15 years and counting...
Since your system has been completely open for several years, all major components (condenser, evaporator) need to be flushed and pressure tested. These may need to be removed for flushing which can pile on the labor cost. You will need a new drier, probably a new POA valve, hoses and seals. Your compressor is probably bad, but the A6 type compressor is easily rebuilt, so you can keep your original if that is an issue. Reman A6s are not expensive compared to newer compressors. The compressor clutch is prone to failure, so it should be replaced. Bottom line, $1k if you get some friendly discounts and do some of the work yourself, and with a little bit of luck. Expect $2k or more at a shop. Do you really need AC in Michigan?
Melting Slicks
Joined: Oct 2006
Posts: 2,417
Likes: 336
From: Texas
just did my 79, rebuilt compressor, had hoses rebuilt, new thermostat,drier/accumulator, orifice tube, all orings, 8oz oil, ac system flush, vacuum pump rental, 4 cans 134a, now have 45 deg. air coming out of vents, cost me a little over $400 
Le Mans Master
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
I just repaired the AC in my 71. I replaced the compressor with a NEW(ie. not rebuilt) one, new drier, new expansion valve, flushed the entire system, vacuumed and recharged and I spent about $900. I bought all the parts from www.ackits.com. They have the best equipment as they are an actual AC company and reasonable prices. I had a local shop install everything, flush and vac/charge with R12. I get 42-45* vent temps with the fan on the 3rd speed.
I highly recommend getting a NEW compressor, not reman, the front seals are prone to leaking in the A6. I would also recommend changing the hoses, or at least the high pressure hose. Also make sure your fan clutch is good and tight.
I highly recommend getting a NEW compressor, not reman, the front seals are prone to leaking in the A6. I would also recommend changing the hoses, or at least the high pressure hose. Also make sure your fan clutch is good and tight.
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