[DeTomaso] Flare fitting question

[Scott Bell]

Re-Sent with a smaller attachment...

-----Original Message-----
From: Scott Bell [mailto:scott at saccrestorations.net] 
Sent: Friday, July 11, 2014 12:30 PM
To: 'Tom Shinrock'
Cc: detomaso at poca.com
Subject: RE: [DeTomaso] Flare fitting question

Once you remove the adaptor the O-ring will make sense. All new style AC fittings use O-rings instead of flare fittings. The adaptor
is the problem. Get rid of the adaptor and have an AC shop put the correct hose end on the hose.

Attached is a picture of the correct hose end style...


-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at poca.com] On Behalf Of Tom Shinrock via DeTomaso
Sent: Friday, July 11, 2014 11:55 AM
To: detomaso at poca.com
Subject: Re: [DeTomaso] Flare fitting question

Thanks for the input Larry,


I'm becoming convinced there is an adapter in my condenser fitting.  I don't understand the shoulder on the adapter (which was there
before the AN connector was screwed on).  I also don't understand the function of the black o-ring that is behind the adapter and
would be after the flare seal.

 

We have confirmed that the AN connector has the wrong flare and needs to be remedied.

Finally got through to CCS and sent them the picture of the fitting.  They said they would get back to me today and explain what I
have.

Tom

p.s.  I see you are on AOL too.   I've noticed on my posts that the carriage return I place between paragraphs somehow isn't
recognized so all the paragraphs run together.  I'm trying an experiment with this post to see if double carriage returns gets a
space between paragraphs.

 

 

-----Original Message-----
From: Larry Finch via DeTomaso <detomaso at poca.com>
To: detomaso <detomaso at poca.com>
Sent: Fri, Jul 11, 2014 1:20 pm
Subject: [DeTomaso]  Flare fitting question


   Tom,
   I strongly second Ken's guess on your upper condenser fitting
   incorporating the adapter shown in Ken's eBay link.
   As far as I know, these are not used in OEM systems so your A/C shop
   may not even know they exist.
   When I installed the CCS evaporator, purchased through Wilkinson, I
   found they had included just such an adapter for one of the
   Freon fittings.
   When I phoned CCS, I was told the proper flare fitting was not
   available, so they used the eBay adapter and a newer o-ring fitting as
   a work around. I have not noticed any leaking at the adapter.
   From your photo, it looks like the o-ring in your photo is black. I'm
   thinking it should be one of the light green o-rings as are used on
   the newer o-ring fittings. If it is a common black rubber o-ring, it
   may not be resistant to the R-12 chemical properties.
   Also, the aluminum flare surface in your photo also seems to have a
   small shoulder near its base; that may be the cause of your leak.
   John already commented on the AN to flare degree mis-match. If in fact
   your A/C shop truly did use a AN fitting, that may be the cause of the
   shoulder that appears on the adapter in your photo.
   And if they did in fact use a AN fitting, that be a reason to look for
   a more knowledgeable shop, too?
   As for the ninety-degree issue, perhaps you can just cut it off and
   have a skilled TIG welder attach a straight fitting? If you can't find
   a proper male flare fitting, you may still have to use a male o-ring
   fitting and the eBay-style adapter.
   If you can reorient the fitting to aim to the right (instead of down)
   you may find your hose is long enough to reach it. If the re-oriented
   fitting can be returned to a male-flare, you can use the existing
   female-flare hose-end fitting.
   If you still have to retain a male o-ring fitting and the eBay adapter,
   see if you have enough hose length to cut off the stock female flare
   fitting and replace it with a female o-ring fitting.
   In either case, if your re-oriented fitting would still be just a
   little bit too short with the available hose length, consider adding a
   TIG-welded nipple to extend the fitting as needed to mate with old/new
   hose fitting.
   I'll bet money you have the eBay adapter piece, and therein (wrong
   o-ring and/or deformed adapter flare surface) lies your leak issue.
   Larry

 
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