Date: Sat, 23 Jul 2005 00:01:29 -0400
From: Steve <stevenospamast.net>
Subject: Re: A/c compressor 1999 9-3


On Sun, 03 Jul 2005 08:08:51 GMT, Malcolm William Mason <mwm1(spam)nospamedu> wrote: > > > > > >>That's probably a little excessive, though a really bad failure may make it >>worthwhile. Normally this is only an issue in central A/C or heat pump >>systems where a compressor burnout results in lots of nasty acidic gunk in >>the hermetic system from the varnish burning off the motor windings. It's >>not particularly easy to flush out one of these systems so they make special >>cleanup filters to be installed after such an incident. > > > >What I will standby is : > >Clean up cap tube or orifice if present. Alternatively replace the >thermal expansion valve if that is the metering device not a tube or >orifice. I am leery of cleaning up TX valves. > >Remove old dryer and filter and replace. > >Retain receiver but be sure it is clean. > >Pump down as far as possible. Replace charge and use gauges or very >accurate weighing method. > >Repeat with new dryer and recharge if you are a stickler. I feel it is >cheap insurance. > > Refrigerant, high pressure and moisture can produce nasty products even >in an "open drive" compressor > > > After replacing the compressor, which is almost always the case, always > add a filter. A new filter. The failing of failed compressor creates a > lot of crud that you do not need fouling the replacement. I have seen > sticklers who after a week or so will remove and reinstall another > filter dryer pump down and recharge. This may be a "belt and >suspenders" approach, but those who did it had plenty of automotive >cooling experience. > >Malcolm My clutch pulley bearings failled (it seems). I think I only need a new clutch assembly. However, nobody sell it separate, so I gota buy the whole compressor. I can replace the clutch myself with minimal tools, but people are recomending that I replace the entire compressor, which means I need to disconnect/reconnect a whole lot more? Do I need to recharge the system? Replace the dryer/receiver? Since I believe only the pulley failed, theres no metal chips in there right? How can I check?

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