AC Compressor fitting
 

I am doing some custom AC lines for a v-mount install and need to determine the compressor fitting type. I think it is the same for both MANA and Denso systems because they both use the same compressor.

It's a flanged piece of tubing sealed by an o-ring. This design is probably specific to Denso compressors, but it would be easy to duplicate or adapt.

So, I grabbed a wrench and pulled it out. (Systems is already discharged.)

Here is a picture of the discharge fitting:

https://www.stanford.edu/~sunid/Pict...eConnector.jpg

Your definition of 'easy' must be a lot different to mine. :) Is this a generic/interchangable type of fitting?

A emailed a company called Nostalgic Air to see if they had an adapter (something like the following) but they did not have one for the TV14C compressor.

http://www.nostalgicairparts.com/ima...593GM1605W.jpg

I am basically going to order a custom hose to go from the compressor to the condenser.

:icon_tup: Nostalgic Air.

Gave me excellent customer service, very friendly on phone and shipped FAST.

Thanks for this! I've been looking for a place that sells o-ring kits.

Did some more digging around and found a company called Doc's blocks that has an entire range of adapters:

http://www.docsblocks.com/products.asp?cat=14

Not clear to me how these adapters are specified so I picked one that looked like it could work. I guess I will find out when it arrives.

Mo when all this is said and done you might be the new forum resource for custom AC work. Haha.

Hey denso system have completely different thread pitch from the mana system, if i recall correct I think was able line up -6an fitting on the mana system, Like you I brought used compressor and lines that came out from the same car as a mana system to find nothing will interchange within those two system thanks to mazda. Anyway i endup spending close to $1350 to replace condensor, compressor, lines, dryer and recharge it with R12 freon.

MANA uses metric threads. Fittings for AC metric threads are far less common than standard threads in the U.S. I was hoping to get a custom line made from the compressor to the condenser but I first need to find an adapter for the compressor fitting. It looks something like:

http://www.docsblocks.com/prodimages/AA1110.jpg

There are several places to get custom hoses to go from this standard threads on this adapter to the metric male threads on the condenser (female metric fittings are easy to come by), which will replace two hoses in the current system - one rubber and the other metal (e.g., http://www.coldhose.com/custum-ac-hose.php).

Another option is to get a custom hose from the female fitting on the end of the stock rubber hose from the compressor (which mates with a hard line to complete the trip to the condenser). However, on my MANA system this requires a male metric fitting to mate with the female metric fitting on the end of the rubber hose, which seems very hard to come by. I may now get an OEM Denso rubber hose from the compressor, which has a standard female fitting. (The compressor side fitting on the rubber hose is the same on both MANA and Denso systems - unlike all other AC components, the compressor is actually interchangeable between MANA and Denso systems.) Standard male fittings to mate with this are easy to come by. I can then easily order the custom line to finish the trip to the condenser.

The reason I am going to these lengths is that I cannot sufficiently bend the hard lines to the condenser in my v-mount installation without destroying the line. (The smaller line from the condenser to the dryer is pretty easy to bend.) A lot of people mount the condenser upside down when doing a v-mount, which requires minimal bending of the large hard line. However, the condenser is not going to work very well in this configuration.

An important consideration for the proper operation of the a/c is to keep the condenser outlet--the small line--at the bottom. That's where the condensed liquid refrigerant will settle due to gravity; if you don't do this, your evaporator will receive mostly uncondensed vapor and your a/c won't work very well. Unfortunately, this means that you cannot simply tilt the condenser down in the front....

In order to get the condenser correctly positioned, and assuming you are placing it over the radiator, it will be necessary to flip it over and place what was the rear edge at the lower front. IIRC correctly, the smaller (liquid) line was easy to adapt, and didn't pose significant problems if carefully bent. However, the larger line from the compressor outlet required modification in order to get it in the right location. I had to cut and weld a section in near the fitting, but it worked out fine.

As to adapting lines to the TV-14 compressor: I would just cut the old lines off the blocks, fit those blocks with standard AN fittings as required and weld them on. I suppose you could try threading them in, not sure how well it would seal unless you put an o-ring in there somehow. Lots of barrier type refrigerant hoses are available with AN spec fittings for custom installations fwiw.

That just saved me! I was mocking up my custom lines and about to make the cuts, then I saw this. I flipped my condenser over so the the 6AN line comes out the bottom and the 8AN is on top.

I ended up going with a universal 11x24" condenser from rycompressors on ebay. I had to move my drier back and make a custom bracket to clear my Vmount intercooler. Right now I'm making the custom lines to the condenser from the drier and the compressor discharge. I am just going to cut the factory A/C lines off and weld the fittings on for the hose. I looked into the compressor adapter fitting shown above, but it was $79. I didn't want to take the chance that it may not work with the Denso TV-14 compressor.

I originally wanted Coldhose to make my lines. I mailed my factory lines in for them to modify and attach the fittings to. They just held my lines for two weeks and didn't even touch them. When I called for the second time, they told me they couldn't make the lines. No reason was given. I was extremely pissed off with how they just wasted two weeks of my project. I left a note with the hoses clearly stating what I needed and to call me if there were any questions. I ordered all the hoses and fittings needed from nostalgic air parts. Everything got here within two days. After a couple hours of measuring and cutting the stock connectors. I am ready to get everything crimped and welded. Not sure what made this soooo hard for Cold Hose:scratch: