Rebuilding AC Compressor - TV14C
 

Has anyone out there attempted replacing the seals on the AC Compressor? I mean actually pulling it apart. I was thinking about putting together a DIY post if it could help others. So far it's a piece of cake, tho I started with a working, just leaking, compressor.

I figured for ~$30 in seals it was worth a try. Worst part was ordering all the seals, only to realize the R12 compressor is different and having to wait for new stuff to come.

There is a decent guide for a Miata (R134), but it's a slightly different compressor than the TV14C for R12.
https://cimg2.ibsrv.net/gimg/www.rx7...52126bad39.jpg

Resurrecting an old post - just wondering how the OP made out on rebuilding that TV14C A/C compressor, and where you got all the rebuild parts from?

I'm restoring the A/C system in my FD, and after getting the system fully closed up and partially charged, I find the used compressor is working fine, but it has a slow gas leak from the shaft seal. So I may tackle the compressor rebuild job myself assuming I can find all the necessary parts.

might try sending him a PM. may get quicker response.

I was able to successfully purchase parts and rebuild the compressor. The parts breakouts are on the A/C parts availability thread and are available thru autozone I believe. Or any place that sells santec parts.

Mine also was working but had a leak. New seals fixed that.

Thanks, I'm going to give the rebuild a try.

BTW, you can get a new TV14C Denso compressor from these guys: https://ackits.net/product/14-3662nc/ That's my plan B if the rebuild is unsuccessful.

I bought this one recently, have yet to install it

https://www.coolairparts.com/Mazda-R...50?search=rx-7

I'm having issues getting the center section apart. I've removed all the bolts that I can see. Did you guys find it more difficult to get apart than removing the outer parts?

I got the compressor all the way apart. I bought this reman compressor a couple years ago and immediately overcharged the system and cooked it lol. I’m going to rebuild another one tomorrow that was working when I got it from my buddy.



I ended up with a couple extra o-rings and one extra gasket (seen in one of the pics), and this kit has soft gaskets instead of the metal ones that came out of the compressor. I prefer metal but whatever. If someone knows of a kit with metal gaskets, please let me know. I guess I could reuse the original metal ones too.

by https://www.flickr.com/photos/159205146@N07/, on Flickr



The rear gaskets are a little different, but I don’t think it’ll be a problem.

by https://www.flickr.com/photos/159205146@N07/, on Flickr

by https://www.flickr.com/photos/159205146@N07/, on Flickr



This is my only concern with this compressor. This is the front section.

by https://www.flickr.com/photos/159205146@N07/, on Flickr

I only did a partial rebuild on the used FD compressor I got, just replacing the shaft seal which didn't require full disassembly. It was the TV14C R12 version. Anyway, after re-installing it and charging it again, it was still leaking, only worse this time, so thinking I FUBAR'ed the rebuild, I got a new compressor. Then I found that the NEW compressor, which was shipped sealed with a nitrogen pressure charge in it, was also apparently leaking - that's when I realized that I probably misdiagnosed what I thought was a leaky shaft seal on my rebuilt compressor with the sniff tester. The real leak turned out to be a brazed joint where I joined a MIO fitting to the compressor's suction side pipe pad fitting, which sits just under the compressor pulley. :banghead:

Took that suction side pipe off, removed the brazed MIO fitting, cleaned up the pipe, got a new MIO fitting and gave it to my welder guy to weld for me. Leak free and cooling with R134A since then. :)

That sounds like a real kick in the nuts lol. Glad you found the leak though. I'm thinking mine must've leaked a couple years ago because apparently it lost the charge over the winter. I had it charged with R152A and it was super cold, but I tried a couple more times after that and kept overcharging it, so this time I'm just going to take it to a shop to get leak tested and charged. I'm tired of messing with it.