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BillD

Bubbles in Clutch MC after bleeding

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My clutch felt sloppy, so I checked the fluid and it was very low. I filled it, but it obviously needing bleeding. I bled (with a vacuum pump) and it now works beautifully, but very tiny bubbles appear in the master cylinder when pumping the clutch. Do I need a rebuild kit or new MC?

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I had the same problem only the bubbles in mine were big. Your Clutch MC has a piston inside it to push and pull the fluid when you put your foot down on it. The Valve inside the assy. has little rubber "O" rings. Mine was tearing apart, letting air in and fluid out. Your best bet would be to take yours apart and inspect the rings. If it is looks torn, find a used one in good condition. I found mine on EBay for really cheap. Good luck my friend.

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A used clutch master cylinder is false economy. Brand new ones are relatively cheap - I can buy one locally (no shipping costs) for about $40. Why take a chance on a used one for that?

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I got a new clutch MC. It looks like a simple install. Since those are famous last words, is there anything I should be aware of while doing the switch?

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