Leak Test - Compressor Block Fitting & Shaft Seal

A defective or a worn-out shaft seal often causes compressor gas leaks. A small amount of compressor oil leakage from the shaft seal is normal. Replace the compressor only when a large leak is detected. At times, an oil leak can be detected visually. A gas leak check will require a gas leak detector.

1. Blow shop air in the following locations for at least 15 seconds:
^ Behind the compressor clutch/pulley
^ In front of the compressor clutch/pulley
2. Probe the compressor area. If