Rick's Free Auto Repair Advice

AC Compressor Repair

How to deal with AC Compressor Repair

AC Compressor Repair isn’t rocket science. Most DIYers can handle replacing the clutch, clutch coil, pulley bearing, pulley, and even the front seal. Except for the front seal, you don’t have to discharge the system to replace those parts. But you do need a clutch puller/installation tool and a clutch plate holder. Since you probably don’t know what size puller tool you need, you may be better off buying a complete kit for less than $50.

How to replace an AC Compressor Clutch

To remove the clutch, screw in the removal tool and hold the clutch disc with the holding tool.

car ac clutch holding tool

Use this tool to hold the AC clutch disc while you remove the pulley

Remove retaining nut on the compressor shaft while holding the clutch disc with the holding tool. Then install the clutch disc puller. Use the clutch disc holding The clutch pulls right out exposing the coil and pulley. Remove the clutch coil. If you’re having clutch issues, replace the clutch disc, pulley and clutch coil

Remove AC clutch tool

AC clutch disc removal tool

and together.

Replace AC pulley bearing

If you want to replace the pulley bearing, you’ll need a pair of snap ring pliers to remove the retaining ring.

Remove the old bearing and install the new bearing. Re-install the retaining ring. Make sure it fits into the groove

Replace AC compressor shaft seal

With the pulley off the compressor, you’ll be staring right at the main seal. If you find a lot of oil around the shaft, you’ve got a leaking main seal.

comprssor shaft seal

Compressor shaft seal

To replace the seal, first discharge the system. Then buy a new seal and a seal installation tool. The installation tool is a sleeve that fits over the shaft to protect the seal from installation damage. Oil the seal with AC oil and then slide it into place, making sure you don’t nick the green rubber O ring. There you go, you’ve just rebuilt your A/C compressor.

Can you fix your AC system with an AC leak sealer?

Learn all about AC leak sealers here

Find Compressor Clutch Plate Removal Tools Here

© 2012 Rick Muscoplat

Posted on by Rick Muscoplat

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