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I''m about ready to put a new a/c compressor into my car. Have removed the old one, but want to be very diligent in installing the new one. Any tips?

Submitted: 507 days and 13 hours ago.
Category: Car
Value: $15
Status: AWAITING CUSTOMER ACTION
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Optional Information:
1995 Buick LeSabre Custom 3.8L

Posted by Ted G. 507 days and 12 hours ago.

Info Request

Was it leaking or failed internally?

507 days and 12 hours ago.

Reply

Reply to Ted G.'s Post: I really don't see your reply as being relevant. I already stated I'm about to install a brand-new unit and that I've removed the old one. The problem with the old one is the clutch bearing. Again, that was not my question or had nothing to do with my question. I want to be very careful that I install the new unit without potentially installing with it contaminants, dirt, incorrect procedure followed (ie. Step 1, Step2, Step 3 in order), etc., etc. A person that has done this before and especially one that's done it many times and again especially in a 1995 Buick LeSabre Custom can probably provide the answer(s) to my question. I've already placed a good faith deposit showing my willingness to pay for helpful and relevant information.

Posted by Ted G. 507 days and 12 hours ago.

Answer

I was asking a relevant question because the procedures are different for an internally failed compressor and an externally failed compressor. We have a system here that posts a "Request" when we need more information to properly answer your question.

Now since you have had an external failure, your job os much less strenuous. On a vehicle that old I would recommend also replacing the accumulator and the orifice tube. The accumulator has a dessicant bag that absorbs moisture and over time will "fill up", a new one now will extend the life of the system. The orifice has a small filter screen which also should be serviced once in a while. Use all new seals, lubricate them with PAG oil before assembly. After assembling all the parts, vacuum system for 15-30 minutes to remove moisture, then charge to the exact specified charge listed on or near the AC box under the hood-by weight only. That should get you back and running 100 percent.

507 days and 11 hours ago.

Reply

Reply to Ted G.'s Post: In order to get a one year warranty it was recommended that I purchase the accumulator and orifice tube (which I did). I'm having the system charged by an expert (my mechanic) . . . all I'm going to be doing is installing the compressor (hopefully correctly) and putting all the parts removed to do that back, driving my car over to my mechanic and he'll do the rest.
Do you know specifically what torque settings I should be following? The new unit has a cap where the external cooling system pipes connect and is already filled with oil. I'm cautious to proceed (will the oil leak out when I go to make the connection?)! Tips like these are what I'm looking for. Walk me through JUST phycically installing the new compressor.

10:52am EDT, July 4th, 2008 copy of email I sent to you:

Hello Ted,

I'm sorry, but my question to you was still not answered to my satisfaction . . .
---------------------------------------------
What do you want to do next? I still have some time . . . it's July 4th and we have guests coming for dinner, so I won't be needing this important question answered until I continue this project tomorrow.

The ball's in your court!

Respectfully,

David

Edited by XXXXXX on 7/4/2008 at 10:56 AM

Answer

Sorry, must have lost this one in my list. Snug all the mount bolts to 30 ft/lb. No more than 10 on the bolt holding the rear hose connection. The oil in there is only a few ounces so just don't tip the hose fittings down and you should not leak any out. Normally you should be able to attach the hoses prior to installing the compressor but if not as long as it's mounted level you should be fine. BTW check you serpentine belt tensioner for smooth operation, if it feels like it binds as you move it back and forth with a ratchet, that may be what damaged you clutch bearing.

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Expert: Ted G.
Pos. Feedback: 100.0 %
Accepts: 
Answered: 7/5/2008

ASE Certified Technician

20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness

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