Date:         Thu, 16 Aug 2007 12:22:08 -0400
Reply-To:     Wesley Pegden <wes@CS.UCHICAGO.EDU>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Wesley Pegden <wes@CS.UCHICAGO.EDU>
Subject:      Re: Update: Is my Compressor Broken?
In-Reply-To:  <46C476FD.9040200@cs.uchicago.edu>
Content-Type: text/plain; charset=ISO-8859-1

Forgot to add another issue:
Even with the 2 cans of freeze-12 in there, I still need to jumper the
compressor to the alternator to get the clutch to engage.

This is all in a 83.5 1.9l camper by the way.
-Wes

Wesley Pegden wrote:
> 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
>>
>>
>>
>
>