Ad0911

What made me too scared to read this thread? Because I have to face the facts and not burry my head into the ground?

Vasut

griffiths

You'd have to add the compressor support bracket (aka 'console') for the compressor,
maybe a alternate belt tensioner or 'strut', change 2 ac lines, and maybe a compressor manifold
to attach the hoses.

griffiths

If you mean to check for potential leaks, assuming the system is empty, you could inject some R12 refrigerant and sniff all the joints that are accessible with a refrigerant leak detector,
and you could also put on an R134a charge port adapter (temporarily) inject some R134a and sniff as well (and recover the refrigerant when done).

The issue is "pressure". At best, let's say you could inject some R134a on a hot day, without the system running, maybe reach 100 psi static pressure. However if the leak becomes noticeable at
'operating' pressures, say in the 250 range, the leak won't be noticeable at the previous static pressure.

I've owned 3 sharks, 1978, 1984 and a 1989. All converted to R134a, driven in mid 90's humid weather without any performance issues.
And, we have helped many other shark owners do the same.