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Help with A/C repair 200 1993

posted by  woodshavings on  Wed Dec 25 17:04 CST 2013
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last visit: Fri Oct 24 08:22 CST 2014
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I'm getting ready to rejuvenate the R134a A/C system in our 93 245 . I plan to do most of the work myself, and have a few questions that I've not found answered in other posts.

I had a good shop run some diagnostics on it this past summer and they found multiple compression seals were leaking and the (original) compressor is shot. They recommend a new compressor, fixed orifice tube, drier and seals followed by a complete recharge of the system. All seems reasonable.

I'd like to do all the part swaps myself and take it back to them for a vacuum test and recharge. They said they were totally fine with that. I plan to use new quality parts.

Questions:

1. FCP now offers a lifetime warranty on the parts they sell. They offer an Omega compressor and a seal kit. Are these good quality? What other good options exist? Same question for orifice tube and drier.

2. What are the torque specifications on the compression connections? Just snug?

3. Should I also be replacing the mounting bushings as well? I don't I don't know how long they should last, and there is nothing to make me think the current ones are failing.

4. How much care do I need to take with the line openings when replacing seals and components? Should I be taping over them so absolutely nothing gets inside? Should I be 'cleaning' them? Should be cleaning the compression mating surfaces?

Any advice and information is helpful.

Thanks.





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