Removing A/C compressor -- do I need to worry about evacuating? - Team Camaro Tech
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post #1 of 10 (permalink) Old Sep 9th, 11, 07:53 PM Thread Starter
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Removing A/C compressor -- do I need to worry about evacuating?

Tomorrow I'm pulling all my March serpentine kit pulleys, belt, alt and A/C compressor off. The A/C has never worked since I've had the car; not sure why, whether for lack of the system ever being charged, wiring or what.

But when taking off the compressor, if there is freon in the system, will it go spraying out everywhere when I remove hoses or what will happen?

I have no idea what the effect of escaping freon is -- or even if it's going to be a problem for me, as I don't know if there's freon in the system -- so if this is a stupid question, sorry.

Also (and I know this is the wrong forum for this, but) I'm removing the remote power steering reservoir and pump as well. Do I need to drain it first, or will it stay contained in the reservoir?
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post #2 of 10 (permalink) Old Sep 9th, 11, 10:43 PM
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Re: Removing A/C compressor -- do I need to worry about evacuating?

I'm not an a/c expert but if the system is charged it needs to be evacuated and the freon recovered. You will loose oil from the system as well if you release the freon. You can tell if its charged by putting on a set of gauges if you have them. Does the compressor engage when the system is switched on? You should hear a click and the clutch on the front of the compressor should engage when you turn on the a/c.

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post #3 of 10 (permalink) Old Sep 9th, 11, 10:49 PM Thread Starter
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Re: Removing A/C compressor -- do I need to worry about evacuating?

Quote:
Originally Posted by larryh56 View Post
I'm not an a/c expert but if the system is charged it needs to be evacuated and the freon recovered. You will loose oil from the system as well if you release the freon. You can tell if its charged by putting on a set of gauges if you have them. Does the compressor engage when the system is switched on? You should hear a click and the clutch on the front of the compressor should engage when you turn on the a/c.
Crap... I don't know if the compressor engages, b/c when I "fixed" all the wiring (rerouting it from laying all over the wheel wells), I never got all the wiring reconnected properly. So when I flip on the fan switch on the dash, nothing happens, at all. I know that's just my inability to reconnect everything properly and nothing to do with the A/C, per se.

However, when the fan was wired, before I jacked with it (fan would blow hot air, but not A/C) no, I never got the A/C clicking-on sound, just fans blowing... A while back though, I started to move one of the hoses that runs from the compressor to somewhere in the firewall (don't know which/what hose it was), I heard a very noticeable "hiissss" sound, so I immediately re-tightened the clamp and haven't jacked with it since.

That probably doesn't help much, huh?
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post #4 of 10 (permalink) Old Sep 10th, 11, 12:57 AM
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Re: Removing A/C compressor -- do I need to worry about evacuating?

You have 3 choices. Recover it as Larry mentioned. Leave the compressor in place. Or vent it to the atmosphere and destroy the ozone which will kill everything on planet earth.

What is your intentions with the A/C? If you want it to work then get a schematic and start trouble shooting, because it sounds like you have electrical issues.
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post #5 of 10 (permalink) Old Sep 10th, 11, 08:46 AM Thread Starter
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Re: Removing A/C compressor -- do I need to worry about evacuating?

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Originally Posted by parkbrau View Post
You have 3 choices. Recover it as Larry mentioned. Leave the compressor in place. Or vent it to the atmosphere and destroy the ozone which will kill everything on planet earth.

What is your intentions with the A/C? If you want it to work then get a schematic and start trouble shooting, because it sounds like you have electrical issues.
Recovering it sounds like the better choice of the 3.

I'm selling my March serpentine kit, so the A/C compressor goes with the set up. I know you're right, for certain about the electrical issues. As I mentioned above, I rerouted a bunch of the A/C wiring a while back and clearly just never got it re-wired correctly.
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post #6 of 10 (permalink) Old Sep 10th, 11, 03:21 PM
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Re: Removing A/C compressor -- do I need to worry about evacuating?

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Originally Posted by parkbrau View Post
Or vent it to the atmosphere and destroy the ozone which will kill everything on planet earth.


I changed a compressor out on a 95 escort and simply re-charged the system with a refill kit.
But don't tell Al Gore.
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post #7 of 10 (permalink) Old Sep 10th, 11, 08:27 PM
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Re: Removing A/C compressor -- do I need to worry about evacuating?

A typical nitrous drag car will purge more ozone depleting gas than an AC system holds. http://www.epa.gov/nitrousoxide/index.html Neither one should be vented to the atmosphere but it's done all the time.
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post #8 of 10 (permalink) Old Sep 10th, 11, 09:27 PM Thread Starter
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Re: Removing A/C compressor -- do I need to worry about evacuating?

After I did some research, all I'm going to say is it got done the old fashioned way.

Now I gotta get to work cleaning up the block. Disgusting huh!? Thinking pressure wash (if I can shove it out of the garage), degreasers, scotch bright pads and mineral spirits???

I know it just takes elbow grease, but recommendations are appreciated!
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post #9 of 10 (permalink) Old Sep 12th, 11, 12:12 PM
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Re: Removing A/C compressor -- do I need to worry about evacuating?

Quote:
The A/C has never worked since I've had the car;
Evacuate what if the system is empty?

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post #10 of 10 (permalink) Old Sep 12th, 11, 12:24 PM Thread Starter
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Re: Removing A/C compressor -- do I need to worry about evacuating?

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Originally Posted by hhott71 View Post
Evacuate what if the system is empty?
I didn't know if PO ever had it charged or not. All I knew is it didn't work, b/c I didn't re-wire the a/c switches properly. Regardless, it's off now.
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