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Old 09-29-2015, 03:50 PM   #1
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What Are These Called - For Air Supply to Horns

Hadley calls them "Mounting Elbows" and I found them on Amazon in a kit for a hefty price.

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The one on the left was cross threaded into the horn. The threads don't seem damaged but neither one is an easy turn into the other used horn or the new one I tried a bit. This is the picture after I wire picked and wire brushed off the metal it stripped out of the horn.

I would like to replace them but don't know what to call them other than mounting elbows or air service line elbows.
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Old 09-29-2015, 04:50 PM   #2
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Have you tried fixing the threads with a tap...
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Old 09-29-2015, 04:51 PM   #3
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Try Napa Or Lowe's.
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Old 09-29-2015, 04:53 PM   #4
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Let me rephrase that..have you tried a Die..
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Old 09-29-2015, 05:31 PM   #5
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Search for 90 degree bulkhead fittings
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Old 09-29-2015, 08:04 PM   #6
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I went to Napa and they referred me to a hydraulic fittings shop. They said both sides of the elbow are compression fitting. He fit a compression cap on the good part without a problem. The damaged side would not take the cap more than a couple threads. I asked if the threads could be fixed, but he said no.

Do they make a tap and die for compression fittings? If they do it would probably be more expensive than a new elbow.

I ordered the kit from Amazon but they won't be here for a week. Prime shipping but delayed for some reason.

In the mean time the hole is covered and my new Traveler Dish arrived. That begins tomorrow.

Thanks for the help.
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Old 09-29-2015, 08:13 PM   #7
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They look like aircraft fittings to me, that someone has forcibly modified
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Old 09-29-2015, 08:17 PM   #8
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I have a set of small precision files and I think I'd be able to fix the left one. Also, maybe you could just cut the end off and still have enough length.
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Old 09-29-2015, 08:26 PM   #9
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Twinboat is correct, they are bulkhead 90
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Old 09-29-2015, 08:37 PM   #10
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See if a large SAE nut will fit. That will give you a die size, to try cleaning up the threads.
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Old 09-29-2015, 08:57 PM   #11
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KUse a thread file.

Granger and most industrial supplies have them.

They are a square file with rows of cutters spaced at standard thread spacing and they come in metric too.

About 12 to 17 bucks and you only use them one time in many years but oh - boy they save your butt when you need one.

They are not one time use...Have had ours for years and needed one last week to clean up a special fitting type "N" rv connector that was part of a special kit that had plating added that made it not fit.

No handy die for the size (about 9/16 X 24 tpi) but the file fixed it right up.

Diameter does not matter just the thread pitch.

Clean up threads then use oil and air to clean out female side or if in new part then Teflon tape
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Old 09-29-2015, 09:47 PM   #12
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More info.

Hadley H11477S - 90 Degree Brass Mounting Elbow

One side is compression. The other is 7/16 x 24thd

Dan
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Old 09-29-2015, 10:05 PM   #13
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Quote:
Originally Posted by Learner View Post
They look like aircraft fittings to me, that someone has forcibly modified
That would be Hadley.
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Old 09-29-2015, 10:09 PM   #14
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Quote:
Originally Posted by dpinvidic View Post
More info.

Hadley H11477S - 90 Degree Brass Mounting Elbow

One side is compression. The other is 7/16 x 24thd

Dan
It might say that, but the other side took the compression cap. The tech at the hydraulic store was surprised.
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