Well, I've not had need to chase one in a 85 123 car. :-) I know I've seen them with non r4 compressors but, haven't seen a bad one .... yet. 126's and 124's eat 'em for lunch it seems.
Project Smoker, '87 603 powered wagon
Hauler, 96 CTD can you say torque?
Toy 73 Cougar xr7 convertible
Acme Automotive Inc.