AC Compressor Replacement

[davidp94]

How do you replace the AC compressor? The whole assembly. Any help is greatly appreciated. Its getting hot...

[ThisIsSparTTa]

http://z32.wikispaces.com/AC+Compressor
http://z32.wikispaces.com/AC+Recharge

You're also going to need to replace o-rings, and your drier as well. Im currently needing to investigate whether I can use an E-Bay Drier and fit the electronics from the OEM one onto it. Optionally you should also check out replacing the shraeder valves, and should consider looking into enviro-safe r12a refrigerant instead of R-12 or R-134a, but I don't know how popular of a topic that is around here. I've heard a lot of good things about it from guys using it in older Z's and will be reworking my entire AC system with it soon.

[davidp94]

Why should i replace the drier?

[ThisIsSparTTa]

Most guides recommend it. It's my understanding that once its exposed "to the environment" which will happen once you pull the hoses off the compressor, that it needs to always be replaced. I think its more of a concern with moisture getting in there, but maybe someone else can chime in. If anyone wants to comment on whether they think an Ebay drier fitted with OEM electronics would work, I need to eventually figure it out anyways.

http://www.ebay.com/itm/GLOBAL-PARTS-14 ... 6a&vxp=mtr

Or Pony up for OEM: http://conceptzperformance.com/Cart/des ... .164.64.90

[emt-z]

the system is a closed circuit essentially, when you open the circuit by taking a hose off you let in the air which has moisture in it (humidity), you pull vacuum to remove the moisturein the air after closing the system again and installing a new drier. the drier is able to trap and contain some moisture that may remain trapped in the system. the drier will also catch any mositure containe in the oil if it was not used from a new container, most oils are hygroscopic meaning they will pull in moisture and over time the level in a bottle will grow as the moisture is absorbed. in some instances moisture, oil and freon combine to form an acid as certain parts of freon can evaporate more readily than others.
that said, i did my own a/c service an repair on my z a few times, the times were not related to the method but instead poor replacement comp(s). i replaced the dryer each time but did not pull a vacuum... no problems on mine for the past 4yrs, no leaks no problems.... now that i have said this i probably will but fingers crossed.
short answer, always replace your filter/drier when you open your system for any period of time or when you put a new part on, most parts stores wont warranty the comp without that being done as well and its cheap insurance.