AC fittings - LotusTalk - The Lotus Cars Community
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post #1 of 9 (permalink) Old 07-19-2019, 04:49 AM Thread Starter
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AC fittings

I traced my air conditioning problem to a big leak at the connection between one of the hard lines and the condenser. I pulled it apart last night and found 2 things.
1. There is no o-ring. Shouldn't there be? If so, any idea what size I need? I looked on lotusgarage and it shows an o-ring, but says it is no longer available.
2. The threads on the condenser are all chewed up. Does anyone know what size they would be so I can buy a die to clean them up?
Thanks much for the help. The heat index today is 105, so I'm looking forward to having AC!!
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post #2 of 9 (permalink) Old 07-19-2019, 06:18 AM
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They are all standard # size orings, I have a post somewhere where I listed them #8, #10

They are not on the rack at the parts store, I bought through Vintage Air
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post #3 of 9 (permalink) Old 07-19-2019, 06:19 AM
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post #4 of 9 (permalink) Old 07-19-2019, 07:21 AM Thread Starter
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Very useful. Thanks!
If I can find somebody that knows about the threads, I'll be in business. I'm assuming the threads are some standard NPT-style, but not sure exactly. Gonna be fun to rethread on the car, too...
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post #5 of 9 (permalink) Old 07-19-2019, 07:37 AM
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I don't know how bad the treads are without a picture, but a thread file might work, and it covers any size fitting (as long as you match the threads-per-inch or thread pitch).

https://smile.amazon.com/Lang-Tools-...gateway&sr=8-3

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post #6 of 9 (permalink) Old 07-19-2019, 07:42 AM Thread Starter
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Quote:
Originally Posted by Jetblast View Post
I don't know how bad the treads are without a picture, but a thread file might work, and it covers any size fitting (as long as you match the threads-per-inch or thread pitch).

https://smile.amazon.com/Lang-Tools-...gateway&sr=8-3
That's a great option, too. I would try that before a die just because it's easier to get to with a file. If anybody can help with the thread pitch, I'll get a file and try that first. Thanks for the suggestion.
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post #7 of 9 (permalink) Old 07-19-2019, 08:21 AM
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threads are a standard thread, not pipe

watch you dont get filings in the pipe

they would be a standard thread for each size pipe/hose

not on the top of my head, but look up the # sizes and the web should be helpful
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post #8 of 9 (permalink) Old 07-20-2019, 08:12 AM
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Hope this helps.
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File Type: pdf 18. PL Air Conditioning, Heating, Ventilation.pdf (83.9 KB, 32 views)

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post #9 of 9 (permalink) Old 07-22-2019, 05:03 AM Thread Starter
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Hope this helps.
That is perfect. Thanks so much. Cool air is going to be great.
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