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air compressor froze

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Old Feb 1, 2009 | 10:42 AM
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air compressor froze

have a '85 F-250 diesel 6.9, compressor froze. Can I have it evacuated replace the compressor and drier, have it recharged ? Is there anything else I need to do? No leaks around the compressor still charged ! The clutch engages, but the compressor pulley does not turn, belt just slips, I unplugged it from the compressor. Thanks
 
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Old Feb 1, 2009 | 11:29 AM
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Wouldn't hurt to change o-rings at any of the other connections since you will have it down. I would recommend replacing the clutch as well, if it doesn't already come with a new one.
Does that system have an orifice tube? Wouldn't hurt to replace that either.

Jason
 
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Old Feb 1, 2009 | 11:45 AM
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Thanks Jason, will replace "o" rings, and whatever else. Will start tomorrow !
 
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Old Feb 1, 2009 | 05:08 PM
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ford trans tech
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your compressor most likely seized due to lack of oil
all systems lose freon and all compressors weep oil from the front seal
practically no one adds oil when recharging a system
you will need to have the condensor flushed it will contain aluminum debris from the compressor plus a new orifice and accumulator
your system requires 10 oz of oil
 
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Old Feb 1, 2009 | 06:02 PM
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Yes, I second the flush to get metal contramination out of the system.
 
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Old Feb 2, 2009 | 12:25 AM
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Evacuation and replacing the dryer/ filter should take care of most of the contaminants.
Adding oil to the system is a good idea any time you replace a component.
It would also be a good idea to convert to R134A type freon if it hasn't already been done. If you do, make sure that you use compatible refrigerant oil.

Jason
 
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Old Feb 6, 2009 | 10:16 AM
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Everything is working fine. Going to blow everything out today, and get it recharged Monday... should be good to go, want to thank everybody for their help.. great site !!!
 
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Old Feb 27, 2009 | 09:50 AM
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Smile Thanks !!!!!

Everything is working fine. !!! Just got it back from the shop, and cools down to 34 degrees !!! Felt good doing the work myself with the help of you guys ! Thanks again Charlie
 
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Old Feb 28, 2009 | 12:26 AM
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Wish I'd seen this sooner, but that condenser on these things is huge, if you didn't remove the condenser and flat flush it, chances are, there is still debris in the thing. It is pretty much impossible to flush these things while they are still installed. If it was flushed while still installed, before you destroy your new compressor, you might want to real quick grab an inline filter for the high pressure line and have it installed.
 
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Old Feb 28, 2009 | 10:20 AM
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Originally Posted by ford trans tech
your compressor most likely seized due to lack of oil
all systems lose freon and all compressors weep oil from the front seal
practically no one adds oil when recharging a system
you will need to have the condensor flushed it will contain aluminum debris from the compressor plus a new orifice and accumulator
your system requires 10 oz of oil

I hope they pumped the system clean. As in serviced by a pro. Big chunks would actually be the least of my worries, its the little shards that cause problems. They hook it up and pull a vacuum for about an hour, pulls about 99.9% of debris from system, and gets any moisture out of the system.

The AC in my truck is almost uncomfortably cold, its kinda rules.
 
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Old Feb 28, 2009 | 12:17 PM
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Smile compressor froze

Your right !! the condenser was hard, but I did it in a week, blew it out, let it sit, "etc." Nothing came out but excessive oil, nothing else. I was looking for chunks of rubber off the hoses, but nothing. I feel good about the guy that recharged it, friend of mine, took about 2 1/2 hours complete. Working good, I guess time will tell Huh !! Thanks again, Charlie
 
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Old Feb 28, 2009 | 01:44 PM
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Originally Posted by orve
Your right !! the condenser was hard, but I did it in a week, blew it out, let it sit, "etc." Nothing came out but excessive oil, nothing else. I was looking for chunks of rubber off the hoses, but nothing. I feel good about the guy that recharged it, friend of mine, took about 2 1/2 hours complete. Working good, I guess time will tell Huh !! Thanks again, Charlie
If you just blew it out , chances are there is still a bunch of stuff in there. the refrigerant oil traps the metal shavings from a seized compressor and holds them to the inner walls of the tubes. you need to use an a/c system flush to loosen the stuff up first to be able to blow it outWith the condenser removed and flat you can pour the stuff in and shake it back and forth to circulate it through the tubes and flip it let it sit a while then blow it out thoroughly with dry air, or you can insert the flush with a siphon gun ( harbor freight sells some nice cheap ones for a few bucks that work nicely ) that will blow it through the thing

If you don't get all the shavings out, it will work great for about 6 months to a year, then you will be replacing another compressor.
 
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