Thanks very much for the help!

Of course, I have more problems now...

Before I started adding, there was no pressure (totally empty).  Just
now jumped the compressor and now got 2 12oz cans of freeze-12 in there,
along with one of the cans of oil.  My new question: although it doesn't
sound to bad at idle speed, as I increase the engine speed, at some
point (maybe 1500 rpms or so?) the compressor becomes really loud...
like something is knocking around in there in a way that it shouldn't
be.  So, I guess my compressor is broke?

Next question:
I DO actually have another compressor.  The '84 passenger van we haven't
sold yet has a compressor in it.  It's A/C doesn't work because of
electrical issues that I didn't want to bother to fix.  That system held
it's refrigerant.  A year or so ago, I had someone evacuate the r-12 so
that I'd be able to remove the compressor.  So it should be easy to do a
swap now, I guess.

So, is there anything should know about swapping compressors?  Should I
be changing any seals, lubricating, etc., the old compressor I'm going
to put in there?

Thanks very much for any help, guys.
Wes

Larry Alofs wrote:
> When the clutch is engaged the whole end of the pulley turns, not just
> the groove where the belt is.
> If the pressure is low enough, the safety switch disables the
> compressor to prevent it from running without the proper oil
> circulation.  Do you have a real gage set so that you can tell what
> the pressures are?  Usually you can get enough gas to go in at the low
> pressure side to get the system to boot up.  If not, you may be able
> to use a jumper apply 12V directly to the compressor temporarily.  Try
> to be sure that you don't have a problem with your valve connection
> that is stopping the gas from going in.
>
> Larry A.
>
>
> On 8/15/07, *Wesley Pegden* <wes@cs.uchicago.edu
> <mailto:wes@cs.uchicago.edu>> wrote:
>
>     My A/C blows warm.  I checked and it's empty.  I got a freeze-12
>     kit to
>     try filling it up, but it won't take a charge (not even one can).  I
>     think the problem is that the clutch isn't engaging?  My questions
>     are:
>     how do I tell if it's engaging? What do I have to do to force the
>     clutch
>     to engage?  Etc.
>
>     Thanks very much,
>     Wes
>
>     This is on an 83.5 1.9l westy
>
>