VEHICLES > PROJECT CARS/TRUCKS
Hydraulic clutch problem
m_fumich:
Due to a little change in plans, I don’t need to cannibalize my blue Mazda for my planned 323 build. It doesn’t need much to be drivable again. It has developed one problem since it was last driven. The clutch peddle goes straight to the floor. It’s not one of those systems that integrates the slave cylinder with the throwout bearing, thank goodness. There’s no fluid loss from the reservoir so no leak. I know it’s the clutch master cylinder or the slave cylinder. Before I start turning wrenches on this thing, I wanted to contemplate how to proceed with trouble shooting.
Here’s my idea....
Disconnect the line from the clutch master cylinder and put in a threaded plug. If the clutch peddle goes to the floor, the master cylinder is bad. If the master cylinder is good, I’ll have a stiff peddle and the slave cylinder must be bad.
Is that reasonable? Should I take a different approach?
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slip knot:
you gotta get the air out first. I would just fill It back up with fluid and bleed the air out. If the slaves bad it will leak fluid out. if the master is bad it will bypass internally.
m_fumich:
No fluid has leaked out. The reservoir was still full when I first noticed the problem. I suspected it was the master cylinder. This car has sat for so long, I might just replace the master, slave, and the hydraulic line between them.
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Matt_T:
--- Quote from: slip knot on February 20, 2019, 04:18:39 PM ---If the slaves bad it will leak fluid out. if the master is bad it will bypass internally.
--- End quote ---
Exactly. It's either the master cylinder or something mechanical. Get an assistant to work the pedal so you can see what is and isn't moving.
m_fumich:
--- Quote from: Matt_T ---Get an assistant to work the pedal so you can see what is and isn't moving.
--- End quote ---
Easier said than done. I have NO HELP.
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