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The adjustable clutch

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Old Jul 22, 2020 | 12:58 AM
  #1  
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The adjustable clutch

Everyone has a tipping point. Perhaps it was a lazy leg, perfectionism to the max, or paranoia of syncros grinding away. Being accustomed to only depressing the clutch pedal a couple inches for full disengagement in my other vehicle, it seemed impossible to retrain the left leg to slam the pedal all the way down to the floor for a full 100% clutch disengagement. It was time to do something. Here is the result, and thus far, I'm pleased.


Push rod removal tool.









It would have been better to use a virgin heim joint with a 10 mm hole and threads, but this was done in steps - modified, revised, modified, revised ect. so the end product is an imperfect part for an imperfect truck. Hopefully this doesn't overextend the clutch fingers, but full disengagement is at 75-80% down on the pedal rather than 90-95%

No clutch switch now, just a double throw toggle on the dash. Never was a fan anyway.
 
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Old Jul 22, 2020 | 05:23 AM
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Nice work. I adjusted the clutch to do the same thing in a car I used for track duty. Then I installed a clutch stop (basically an adjustable door stop for the clutch pedal)such that maximum possible travel of the clutch pedal was only one inch from fully released to fully depressed.
 
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Old Jul 22, 2020 | 06:49 AM
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I’m confused... (not uncommon )

If you made the rod longer, you just moved the resting pedal further from the floor. The travel required to disengage clutch did not change.

Ive been driving my friend’s truck with OE clutch lately because my truck runs rough with tired injectors and it’s annoying AF to me. When I get back in my truck I think the clutch is broken the first time I push it every time!! The SB dual disc street clutch is sooooooo easy to push compared to OE. I don’t mind pushing it to the floor...... Of course I only use the clutch to start from a stop most of the time.
 
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Old Jul 22, 2020 | 07:07 AM
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Now I'm confused too. Doesn't the clutch pedal assembly have an upper limit? Mine is a 4R100 truck so I am not familiar with the clutch pedal and could be talking out of my ***.
 
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Old Jul 22, 2020 | 07:14 AM
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Originally Posted by FordTruckNoob
Now I'm confused too. Doesn't the clutch pedal assembly have an upper limit? Mine is a 4R100 truck so I am not familiar with the clutch pedal and could be talking out of my ***.
That explains the halitosis...

The clutch master cylinder dictates the upper limit. Longer rod moves pedal further from floor.
 
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Old Jul 22, 2020 | 07:26 AM
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My ideal fix would be a larger diameter master cylinder to achieve a shorter pedal travel - or a different clutch. But this is the easy remedy, so yes the only thing that changed was the distance the pedal sits from the floor. At rest, the pedal sits noticeably higher than the brake now, but the throw matches my leg, which is the important part. This same problem existed on the last clutch, and the last E99 truck. I have a lazy leg, not much else to say...
 
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Old Jul 22, 2020 | 09:08 AM
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I ain’t mad at ya!! Well done. Good fix.
 
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Old Jul 23, 2020 | 05:57 AM
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Originally Posted by Greasemonkee
I have a lazy leg, not much else to say...
Lazy leg? How about an electrically activated clutch?

 
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