[Vwdiesel] a/c compressor body failed

[Bob]

Scott,

If you do decide to go ahead with an R12 to R134a conversion, be advised 
that R134 tends to leak through hoses that otherwise will hold R12.  It 
has to do with the smaller molecules in the refrigerant.

Also, residual mineral oil lubricant from R12 in the system can cause 
major problems because it doesn't mix with the PAG oil used with R134, 
therefore the plumbing system has to be thoroughly cleaned.

See what I went through converting the A/C to R134 in my '81 RabbitTruck 
at the following web address:  

http://chemdec.natsci.csulb.edu/VWAC


-- 
Bob Soukup
'81 RabbitTruck D.


On Wed, 26 Dec 2007 22:18:02 -0500 Scott Alexander 
<salex at dsl.cis.upenn.edu Wrote:
> One of the mounting ears on my A/C compressor on my '82 Rabbit D failed.
>  The compressor seemed to be working fine up until I discovered the
> problem.  I'm wondering if anyone has experience  swapping the guts from
> a working compressor into the body of a failed compressor?  How hard
> would it be to do this?
>
> Assuming it's not a fool's errand, does anyone have a seized or
> otherwise failed compressor sitting in the junk box that they'd like to
> get rid of?
>
> Since I'll have to crack the system to fix this in any case, I'm also
> thinking of switching to R134.  I know I'll need to replace the
> receiver/ dryer and various seals.  Is there anything else I should know
> about this swap?  Anything peculiar to Rabbits that the guys I know who
> have done this on other cars wouldn't expect?
>
> Thanks,
> Scott Alexander
> '82 Rabbit D
> Warren, NJ
>
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