1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Bleeding the slave cylinder, hints? tips?

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Old 07-18-2016, 03:37 PM
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Bleeding the slave cylinder, hints? tips?

I have heard this is a real pain to do.
I will probably be attempting this alone, the new cylinder has a bleeder on it.

I'm confused though, the plastic "tie down," when releasing it, the rod wants to extend, but how does this work if it naturally wants to stay extended, yet the clutch pedal pushes fluid into it to extend it and retracts under no pressure.....
 
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Old 07-18-2016, 04:06 PM
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The helper spring assures the plastic bushing stays engaged in the throwout arm, and the throwout bearing is always riding on the pressure plate fingers.

A) This means the piston ratio between master/slave can be light and still travel enough to disengage.
B) The bearing is always turning at a fairly constant speed and not being accelerated from 0-3000 rpm every time you shift.

I suggest you just push the arm forward and unclip the strap.
It is very handy to be able to retain it again.
 
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Old 07-18-2016, 04:14 PM
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The spring isn't strong at all compared to the pressure plate.
It's the pressure plate that returns the pedal.
 
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Old 07-18-2016, 05:06 PM
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You will be able to get most of the air out by bleeding, but not all. You then usually have to drive it some and the rest of the air will work it's way back up the line and into the reservoir.
 
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