5kT A/C line test port thread size?

[Ameer Antar]

Thanks for the replay. I have a tire valve tool. Couldn't I just use that? The question is if the a/c valve is the same as a tire valve? My guess is it's not, but I gots no idea... Do you know where these can be found? Thanks a bunch.

-Ameer

---Original Message---
From: <James at ringsperformance.com>
Date: 9/22/03 8:38:32 AM
Subject: Re: 5kT A/C line test port thread size?

An AC shop should be able to change the Schroeder valve core in about three minutes without evacuating the system; there's a little gizmo just for that. Not sure what they'll charge, though . . .

cu, James Marriott
'87 4kq (alias "late-B2 90q") with rare ersatz NG engine, 184k, being restored from rear-end total loss
'89 200q (MC1, ProconTen/no bag, 1.8 blah blah), 154k, already been un-totaled
Boise, ID, USA     http://www.webpak.net/~marriott/
www.ringsperformance.com

----- Original Message -----
From: "Ameer Antar" <antar at comcast.net>
To: "Quattro List" <quattro at audifans.com>
Sent: Saturday, September 20, 2003 3:19 PM
Subject: 5kT A/C line test port thread size?


Hey, I have a '85 5kT with A/C which uses the earlier GM-type compressor. The system seems to be filled w/ pressure b/c there is freon coming out of the test port (compression fitting, I think) near the upper line going to the condensor. There is a port valve (looks sorta like a tire valve, except for the fitting itself), which is leaking. There is a nylon cap which seems to keep the valve from leaking. I don't have the time/money to mess around w/ the A/C system, so I'd like to just seal the system up until I can mess w/ it. It doesn't seem like the nylon cap would last too long, especially under pressures of daily driving and such. So, I'm wondering if there's a way to fix the internal valve somehow w/o losing all or most of the system pressure. If not, I thought to just put on a new metal cap to replace the nylon one. Does anyone know if this would be possible? Also, how can I tell what size of fitting this is? Where can I get these fittings reasonably? What metal would be most appropriate? I've seen steel, stainless, and brass. I couldn't find aluminum although it seems like the rest of the system is aluminum. I hope someone on the list has had some A/C experience to help me out. TIA.

-Ameer