ac service port valve

f1shermun · Post by **f1shermun** » Mon Jun 07, 2010 11:45 pm

I am trying to charge my A/C on my 1972 f-250. The low side valve is froze shut ( tightened). I have soaked it in penetrant for days and haven't had any luck getting it unstuck. Where can I find another valve? It has the vertical mounted compressor.

fordman · Post by **fordman** » Tue Jun 08, 2010 2:55 am

a junkyard maybe? i just went and checked the ones i have and they wont turn either. i am soaking them now to hopefully free them up.

Post by **70_F100** » Tue Jun 08, 2010 7:43 am

I think I may have one.

PM me if you're interested.

Mach428 · Post by **Mach428** » Tue Jun 08, 2010 5:46 pm

Remember these valves are over 40 years old. Call Classic Auto Air in Tampa and get either a rebuilt valve or new replacement. It's worth the money as opposed to the aggrevation

basketcase0302 · Post by **basketcase0302** » Tue Jun 08, 2010 7:30 pm

Is it for the original York compressor?
Coulda' swore I saw one of our vendors that listed them?

f1shermun · Post by **f1shermun** » Tue Jun 08, 2010 7:46 pm

It is the original compressor. I will check the vendors list. Thanks!

Post by **70_F100** » Tue Jun 08, 2010 7:57 pm

These should be the correct ones:

http://cgi.ebay.com/ebaymotors/NEW-1970 ... ccessories

f1shermun · Post by **f1shermun** » Wed Jun 09, 2010 12:56 pm

Where do I find the vendors list? I see the vendors feed back forum. is that the same thing?

Caseys71 · Post by **Caseys71** » Wed Jun 09, 2010 1:13 pm

The Vendors are listed in the links tab here's the links page: http://www.fordification.com/links.htm

fordman · Post by **fordman** » Wed Jun 09, 2010 2:18 pm

pm sent.

f1shermun · Post by **f1shermun** » Fri Jun 11, 2010 11:59 pm

I got the valve unstuck. I tried pulling a vacuum on the system but it has a major leak some where. How should I find the leak without having to spend a bunch of money on refridgerant?

fordman · Post by **fordman** » Sat Jun 12, 2010 12:36 am

i was told that leak detector stuff will clog up your system. one can of refridergant would be enough for a mechanical leak detector to smell out. did you replace all of the o rings and soforth when putting everything back together? that would be one thing to check.

basketcase0302 · Post by **basketcase0302** » Sat Jun 12, 2010 4:57 am

i was told that leak detector stuff will clog up your system. one can of refridergant would be enough for a mechanical leak detector to smell out.

Illegal for someone like me to do, (we haven't been able to use refrigerant for leak checking for several years now).
Nitrogen is what we use in the A/C industry.

Although i'm not sure where you could buy it on a consumer level.

f1shermun · Post by **f1shermun** » Sat Jun 12, 2010 2:15 pm

I havent had the system open, but there is definitely a huge leak. I am eventually going to refill the sysytem with the freeze 12 vice having to worry about all of the retro fitting. Are there o-rings that I should replace?

fordman · Post by **fordman** » Sat Jun 12, 2010 3:41 pm

yes the hoses have o rings on them as well as the valves has orings where they screw onto the compressor. or how about onion rings? no its o rings.

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