Thanks for all the good information!  I with think I'm ready to try R134a, and troubleshoot the compressor clutch electrics, if necessary. I have my Bentley book, and I'm going to pick up a R134a conversion kit during the week.

Thanks,

Raymond

Sent from my iPhone

> On Jun 20, 2014, at 7:27 PM, Ben <syncro@gmail.com> wrote:
> 
> Raymond,
> 
> The clutch is designed NOT to engage when your refrigerant level is too low. Saves you from frying your compressor.
> 
> Evacuate, refill, and try again.
> 
> 
> BenT
> sent from my electronic leash
> 
>> On Jun 19, 2014, at 1:28 AM, raymond markett <raym02@YAHOO.COM> wrote:
>> 
>> 
>> 
>> Hi,
>> 
>> I am try to revive the air conditioner on my 1985 Westy.  When I turn on the A/C the fans inside the passenger compartment blow warm air.  I looked at the compressor, and it isn't turning. After turning the engine off, I found that I can turn the compressor by hand.  I don't believe the compressor is seized. My guess is that the compressor clutch isn't engaging.  I plan to find and check the fuses and relays that send power to the compressor clutch.  
>> 
>> Does any know of a good way to temporarily jumper power to the clutch to see if it will engage?  Any other advice?
>> It sure would be nice to have the A/C working this summer.
>> 
>> Thanks,
>> 
>> Raymond