iPd used to sell a replacement puller for your current PS pump to by pass the AC pulley.

As for replacing it with an '83 PS pump, well, I dunno. There may be a different bracket, yet you would have hose position issues, maybe.

As for checking the AC, well, conversion kits to r134a are apparently not available anymore.

This board is replete with innumerable threads on revising AC systems and converting to r134a.

You could remove the compressor, the condenser coil in front of the engine coolant radiator, the drier, and the hoses back to the fire wall. Or you can get under the dash and disconnect the hoses from the evaporator coil.

To check for fault, you'd need to check system seal. I'd guess you have a leak someplace.

You may be able to kibble together the parts for working r134a conversion. Special o-ring, PAG oil, r134a cans.

Yet you really must pull all parts out of the car, including both coils. You have to throughly remove the old r12 refrigerant lubricant using a special type solvent detergent. Many do not do this adequately, and traces of the old and newer PAG ester 134a compatible lubricant may ruin or cause the compressor to seize.

You may have parts tested at an auto shop that does AC work to see if individual components work and seal. You may need replacement hoses constructed as r134a is a smaller molecule than is r12.

You you can reassemble, the compressor is clean and add some PAG ester oil, draw a vacuum using a refrigerant pump to check that your newly assembled system seals, it may work. It may help, if you can, to use a new AC clutch pulley. A over 26 year old AC compressor may be suspect at any rate.

Review the arciles using the search feature on this forum.

I'd like to do restore A/C to my 1991 using an r134a conversion, using the available kit, and replace the HVAC motor, all at once. No garage make that a real bother.

Hope that helps.

Hot and humid and polluted hell hole St. Louis, MO.
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