Is the cluch on a 92 Celica adjustable? Mine is slipping, compressor barely moving. Do I just replace it?

Thanks

Did this "just happen" or has it been getting worse over time?
You may want to ensure the system is actually engaging the clutch before replacing those components.

This just happened. The clutch is spinning when a/c is on as normal but center hub is not. Clutch stops when a/c is off. Has a smell like a burning fiber and gets hot.

Time for a new clutch and coil assy.
Really for this vehicle you should just get the complete reman comp
w/clutch.
I've seen some really decent deals online and they're Denso remans!
I wouldn't just throw parts at it to try and save money. Never works.