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I've had recently a problem with my AC compressor on my 1972 LT1.
The compressor was really hot and smelled burned !
I want now to do a complete rebuild on it. As long as my LT1 is with the original AC system, I would like to keep the original one and send it to restore.
I've seen some adresses on the forum : which is the best one to do such type of work ?
Of course, if it'll be possible to upgrade the old A6 to a more modern technology, I'll be also interested.
And which other parts must I change for a safe operation ?
I'm going to change all hoses (they look...tired ;-) but there are maybe other parts to change ?
Regards.
Christian
Last edited by chris383; Dec 26, 2016 at 09:40 AM.
I've contacted Dom and I'll send him my compressor for a revision.
I've also contacted Classicautoair for a quote of my other parts of AC system.
They have answered me with an offer for restoration of all parts, even the hoses !
What do you think about this ?
I think personaly that some parts will be less expensive when buying new (hoses f.ex.).
Of course, I loose the originality : I still have the GM number on hoses and I don't know if repro have... And NOS is not an option on hoses (too old) !
Do you know eventually other adresses with new parts or services for AC parts ? I don't want to buy cheap repro parts !
Last question : How can I purge my system in a safe way ?
Christian
If you can get the POA valve rebuilt, it would give a more original look than a replacement. I assume you are trying to keep the car in as original condition as possible, as all the make of LT1 AC cars in 72 was less than 250 units. I would replace the hoses, as they will become porous and leak refrigerant over time. I would pay attention to the replacement crimps on the new hoses and try to reproduce them as close as possible to the original crimps. If the new hoses come with a marking, you can remove the markings with some lacquer thinner.
You need to have a certified technician, with the correct equipment, remove the old R12 from your system.
Ed
Ed,
Classicautoair, if I had well understood, will restore my original hoses.
I've asked them to be sure this is reliable to replace hoses on old crimps....
I would also ask for all unused original parts to be returned to you. That way, you can compare the new stuff to what you originally had and make any 'adjustments', if necessary.
The original label on the compressor is probably the item needing to be transferred to the new compressor...whether rebuilt or replaced. There may also be some date stamps, etc. which could be approximated.
One of the things you need to be sure to save is the rectangular block on the back of the compressor with the muffler attached. Unless things have changed the only block available for small blocks was the one with 2 circular sections. I haven't looked for some time so this may have changed. The original hoses can be cut off the block and new hoses crimped back to this. I don't believe an AC shop is allowed to use the original crimp style and modern crimps, while different, are safer. I could be wrong on this count as well but lsat time I needed a new hose set for my '69 that's the way i was.
Jeff
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Compressor A6 rebuilding service
