93 Mana A/C fittings
 

Hey all I am in the middle of A V-mount, and have tried many different routes and lines, bending, twisting, and ultimately just destroying the factory lines, it's hard enough to try and find the Oem A/C lines for a decent price, but now I'd just like to go the custom route. Does anyone know the sizes for the A/C fittings? A few seem to be the same, an honestly It looks like there might just be two.

I am mainly working on the condenser to drier side of the A/C system. I have spent a lot of time making the V-Mount perfect and I don't want to sacrifice my A/C especially since I incorporated it into my design.

Please let me know if you have any suggestions, I am also ok with ditching the factory drier to make things easier, so technically as long as I find the two sizes for the condenser and the one size for the low pressure line crossing from the evap to drier with the low pressure switch I'll be good.

I have done quit a bit of searching. Hopefully someone can help me out!

Thanks
-Paul

I don't recall the sizes off the top of my head, but I do remember that the Mana system uses Metric sizes (as opposed to the Denso system, which uses common AN- sizes).

When I did my v mount with a Mana system several years ago, it seems to me that I had to buy some of the [less common] metric ends (off of ebay, of all places) and splice them in.

I haven't seen your setup, but be sure the liquid line exits the condenser at its lowest point for best performance.

Hope this helps.

That you for the advice, I believe I have the routing figured out, however I am going to need the sizes to go any further, you've narrowed it down a little bit more for me. Thank you, here is a pic of the setup

One more

And last...

I found some good info here so far,

Hey, after some thought, I seem to remember the larger inlet fitting being M20 x 1.5--although I'm not 100% sure on that; tubing may be 11 or 12mm.

Do you happen to have a pair of calipers available to you? You could measure the thread OD of the condensor inlet tube and fitting to confirm.

Funny you mentioned that, I was playing around with my straight rule and was trying to get that answer myself... My problem is I cannot get an accurate measurement, mainly because I can't seem to reference it correctly. I'll try and find my calipers I'm in the middle of moving so it may be a journey lol

One other thing worth mentioning is that I've successfully used industrial steel compression fittings (available through McMaster-Carr and others) on refer lines and they have proved to hold up well. I know I used one to splice the FD compressor discharge line at some point. And they are very helpful if one needs to rotate one end of a line [relative to its origin] along its axis or to simply join lines.

Check out halfspecs posts on A/C lines. Might be some useful info in there:
http://www.norotors.com/index.php?board=55.0

-M

Thanks for the info, It has great information, but not for the Mana setup other than the larger evap fitting is m22x1.5 and the smaller is m16x1.5

Just a note from that: the fitting required to go into the m16x1.5 requires a 7mm hose fitting not the #6 which is typically offered

So in my attempts at finding the sizes I need I managed to find a local guy that makes A/C hoses.

Now Being the Diy kinda guy this pained me to do. I had them make up lines using the original ends.

So long story short I've moved a few things around. One of the biggest changes were getting them to weld on #8 barbs and #6 barbs in place of trying to get the correct metric hose fittings, ( which are nearly impossible) so all things considered I would recommend this route to anyone who has the ability.

I relocated the larger condenser line to shorten the amount of hose required. I'm now faced with trying to get the hose low enough so that It doesn't hit the compressor.