Question about Mitsubishi Expo

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I used my 1994 mitsu expo 2.4 awd 5 speed to pull a car about a mile or so. the expo didn't like it and the clutch slipped and smelled. A day later I was driving the the clutch went to the floor and didn't come up. I saw hydraulic fluid dripping from the master? cylinder. Not sure if it was the master or slave cylinder, but it had a black rubber accordion cover and hydraulic fluid was running freely. Don't have a lot of money to spend on this problem and I would prefer a diy solution. Advice?

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The typical master is located near the clutch pedal, be it inside or on the firewall. The slave is located on the bell housing or transmission case attached to it. The fluid loss source should be easy to find knowing this.
On some vehicles, it is possible to rebuild either for little money (wear parts would be in a kit), but buying them new is a safer bet since the rebuild should be accompanied by some work on the cylinder itself since these are subject to get corroded (I don't know anyone who actually changes the hydraulic fluid), and it is normally hygroscopic and can absorb water to cause corrosion in the system. 
I don't know what the cost is for your Expo but there might be factory rebuilds available if the list price new is high enough to make it worthwhile for someone to rebuild them. 'Remanufactured' master and slave cylinders are generally done well with the cylinder walls cleaned up by gently boring them and then fitting them with oversized pistons.    
If the fluid is that copious, you'd better make sure that there are no ruptured hoses or failed metallic lines since even blown seals shouldn't cause more than just leakage.

Posted on Sep 21, 2008

  • ExpoHunter Nov 02, 2010

    Do you still own the expo and would you like to sell it?



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