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Old Apr 16, 2001 | 08:12 PM
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4th slave cylinder

I've just blown my 3rd slave cylinder of my 85' F250. It's a 460cid, 4 speed 4x4. Anybody know of a solution?

Thanks
 
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Old Apr 16, 2001 | 09:01 PM
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4th slave cylinder

two things come to mind....you got a bad "run" of slave cyls. (not likely), or your pressure plate is way too "beefy" for your application. Did this happen after a clutch replacement?

Wayne

 
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Old Apr 16, 2001 | 09:08 PM
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4th slave cylinder

You might be on to something. But if I remember correctly I went to a heavy duty clutch because it was the 3rd clutch and the truck had less than 90K miles on it. Do you know of a heavy duty slave cylinder?
 
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Old Apr 17, 2001 | 10:43 AM
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4th slave cylinder

Hi Pat, I can't say for sure about a heavy duty slave cyl, but we need to nail down exactly why the stock clutch went "south" in the first place. e-mail me...

Wayne

 
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Old Apr 17, 2001 | 01:13 PM
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4th slave cylinder

The first one went at 60k, the second at 90k due to the fact that the lower bolts came out, (must have forgotten the lock washer or not torqued it down properly). I don't have a heavy trailer or anything, it's mainly used in the winter.
 
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Old Apr 17, 2001 | 01:33 PM
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4th slave cylinder

[font size="1" color="#FF0000"]LAST EDITED ON 17-Apr-01 AT 02:40 PM (EST)[/font][p]Pat, if there was not sufficient "freeplay" in the clutch, or if you were resting your foot on the pedal (between shifts), there would not have been sufficient pressure on your clutch disc. These two factors will definitley wear out a clutch prematurely.

Wayne

 
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Old Apr 17, 2001 | 01:36 PM
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4th slave cylinder

I can't, I'm at work with a firewall on the server that doesn't allow chat rooms
 
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Old Apr 22, 2001 | 10:01 PM
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4th slave cylinder

What brand of clutch was the heavy duty? If you don't know where did you purchase it from? There are heavy duty clutches available that actually have a smoother pedal than the stock unit. Some heavy duty units go back to a 3 finger lever style which could be the cause of the slave failures. Does the pedal feel harder to push or to hold in after the clutch job?
 
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Old Apr 23, 2001 | 11:42 AM
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4th slave cylinder

Yes it is harder to press.
 
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Old Apr 23, 2001 | 07:37 PM
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4th slave cylinder

the only time i have seen the slave cylinder repeated death problem is on a diaphram style clutch with a worn disc. the fingers of the pressure plate go to an angle that requires immense pressure to depress when the disc gets thin. 'new' clutch is such a vague description.
 
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Old Apr 23, 2001 | 07:57 PM
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4th slave cylinder

 
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