Clutch Pedal Height Adjustment and Clutch Freeplay Mod - Mustang Evolution

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Old 10-17-2012, 09:00 AM   #1
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Post Clutch Pedal Height Adjustment and Clutch Freeplay Mod

While I'm on vacation next week, I plan to apply the freeplay setup described Here.

At the same time, I would like to lower my clutch pedal so the overall pedal travel is reduced. I have an Exedy stage 1 clutch, so the window of slippage is smaller than a stock clutch. Has anyone tried to lower their clutch pedal? Maximum Motorsports has a clutch pedal heigt adjuster kit that looks promissing. Has anyone heard of this kit?

Clutch Pedal Height Adjuster

Having a shorter pedal travel would greatly improve drivability and performance, so I'm looking forward to this project and would like some input from others.
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Old 10-17-2012, 01:37 PM   #2
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Old 10-17-2012, 02:26 PM   #3
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I get the concept and its pretty cool just dont know where is the plastic piece pushing up against? Towards the motor side,,
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Old 10-17-2012, 02:41 PM   #4
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I get the concept and its pretty cool just dont know where is the plastic piece pushing up against? Towards the motor side,,
That part would be concealed behind the clutch cable cover. It's sorta part of the tranny housing.
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Old 10-17-2012, 03:05 PM   #5
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Quote:
Originally Posted by Azure

That part would be concealed behind the clutch cable cover. It's sorta part of the tranny housing.
I must be missing that piece
That's why im lost
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Old 10-17-2012, 03:13 PM   #6
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If your having some trouble picturing how the freeplay mod is installed on the clutch cable, take a look at the pic.

Pretend the bike brake cable is your clutch cable. Does that help make sense of what the freeplay spring does? The spring will keep tension on the cable so your pedal is not floppy in your car. This also will keep your throw out bearing off of the pressure plate.

This is just to show you how the spring and PVC coupling fit on a cable mechanism.
Attachment 72593

Forgive my crude drawing
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Old 10-17-2012, 03:32 PM   #7
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Jajaja nice man. I get the drawing just don't get how is the spring putting tension on the cable? Wait wait wait wait is the whole purpose of this to have the, clutch fully engaged, clutch pedal farther away from the floor or the pedal closer to the floor, disengaged?
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Old 10-17-2012, 04:57 PM   #8
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Check your cruise before and after.
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Old 10-17-2012, 05:12 PM   #9
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Quote:
Originally Posted by Butch View Post
Jajaja nice man. I get the drawing just don't get how is the spring putting tension on the cable? Wait wait wait wait is the whole purpose of this to have the, clutch fully engaged, clutch pedal farther away from the floor or the pedal closer to the floor, disengaged?
Okay, my pic was a bad example because I thought you knew which way the cable moves when you push in the clutch. Check out this pic...

This should make more sense
Attachment 72604

When you let the clutch pedal out (lift up), the spring forces the clutch fork away from the pressure plate. This also removes any slack you have in your cable.
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Old 10-17-2012, 05:13 PM   #10
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Check your cruise before and after.
Okay, I'll do that. Thanks, really good tip.
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Old 10-17-2012, 07:30 PM   #11
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Old 10-18-2012, 01:53 AM   #12
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Quote:
Originally Posted by Azure

Okay, my pic was a bad example because I thought you knew which way the cable moves when you push in the clutch. Check out this pic...

This should make more sense

When you let the clutch pedal out (lift up), the spring forces the clutch fork away from the pressure plate. This also removes any slack you have in your cable.
Still dont get how all this helps your clutch out. I get the process just not the outcome
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Old 10-18-2012, 04:55 AM   #13
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So what your wanting to do is have less travel out of the clutch pedal right?
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Old 10-18-2012, 05:04 AM   #14
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Quote:
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Still dont get how all this helps your clutch out. I get the process just not the outcome
The primary reason is to keep the throw out bearing from riding on the clutch pressure plate 100% of the time. Normally, with a stock clutch, the TOB is slightly off the pressure plate and only touches when you push in the clutch pedal. When you put an aftermarket clutch and clutch quadrant, like Exedy or Spec, many times the TOB will ride on the pressure plate. Adding the spring forces TOB off the pressure plate.
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Old 10-18-2012, 05:05 AM   #15
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So what your wanting to do is have less travel out of the clutch pedal right?
Yup, and keep the TOB from riding on the pressure plate.
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Old 10-18-2012, 08:23 AM   #16
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I just purchased the MM pedal adjuster for $30, including shipping. Only shipping option was ground so I hope it gets here by at least the middle of next week
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Old 10-18-2012, 09:49 AM   #17
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Quote:
Originally Posted by Azure

The primary reason is to keep the throw out bearing from riding on the clutch pressure plate 100% of the time. Normally, with a stock clutch, the TOB is slightly off the pressure plate and only touches when you push in the clutch pedal. When you put an aftermarket clutch and clutch quadrant, like Exedy or Spec, many times the TOB will ride on the pressure plate. Adding the spring forces TOB off the pressure plate.
Aha I get that point but I dont get how the spring itself can do just that, im pretty sure it's simple but I just dont see it.
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Old 10-18-2012, 03:40 PM   #18
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Quote:
Originally Posted by Butch

Aha I get that point but I dont get how the spring itself can do just that, im pretty sure it's simple but I just dont see it.
The spring is between the clutch fork and bellhousing so that it spreads the two apart. It should have just enough force to hold the TOB off of the pressure plate.
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Old 10-18-2012, 04:09 PM   #19
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Quote:
Originally Posted by JDF

The spring is between the clutch fork and bellhousing so that it spreads the two apart. It should have just enough force to hold the TOB off of the pressure plate.
So is the spring pushing the fork towards the back?
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Old 10-18-2012, 04:37 PM   #20
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Quote:
Originally Posted by Butch

So is the spring pushing the fork towards the back?
Yes.
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Old 10-18-2012, 05:27 PM   #21
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Quote:
Originally Posted by JDF

Yes.
Oooooohhhhhhh all issues are now resolved, but with this setup would you not fully engaged the clutch?
You have the spacer taking up space and also the spring
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Old 10-18-2012, 07:37 PM   #22
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Quote:
Originally Posted by Butch

Oooooohhhhhhh all issues are now resolved, but with this setup would you not fully engaged the clutch?
You have the spacer taking up space and also the spring
Are you talking about when you disengage your clutch? The spring will depress enough to allow it to fully disengage assuming the spacer isn't extremely thick.
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Old 10-19-2012, 12:57 AM   #23
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Quote:
Originally Posted by JDF

Are you talking about when you disengage your clutch? The spring will depress enough to allow it to fully disengage assuming the spacer isn't extremely thick.
No no when you engage. Cause your pulling the fork towards the spacer, so wouldn't the spring and spacer take up space?
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Old 10-19-2012, 01:30 AM   #24
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Quote:
Originally Posted by Butch

No no when you engage. Cause your pulling the fork towards the spacer, so wouldn't the spring and spacer take up space?
There's a good amount of space between the bell housing and clutch fork. The fork doesn't get pulled all the way to it so it will be fine as long as you don't use a tightly wound spring.
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Old 10-19-2012, 02:40 AM   #25
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There's a good amount of space between the bell housing and clutch fork. The fork doesn't get pulled all the way to it so it will be fine as long as you don't use a tightly wound spring.
Ah
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Old 10-19-2012, 02:59 PM   #26
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The clutch pedal adjuster kit is supposed to arrive Wed the 24th. Glad it's coming next week or my plans would have been a bust. I'm gonna go through the whole installation with everyone, pics and all. Same with the free play mod.
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Old 10-19-2012, 06:54 PM   #27
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Quote:
Originally Posted by Azure

Okay, my pic was a bad example because I thought you knew which way the cable moves when you push in the clutch. Check out this pic...

This should make more sense

When you let the clutch pedal out (lift up), the spring forces the clutch fork away from the pressure plate. This also removes any slack you have in your cable.
Hey AZ. I get the concept except one thing. It seems The spring allows the TOB to engage earlier because the spring multiplies the tension being applied by the pedal. Did I get that right? The actual pedal height stays the same.
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Old 10-19-2012, 07:00 PM   #28
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Ok, I got it backwards. The pedal position does change. My pedal is about 1.5" higher than my brake pedal. I can set the release point somewhat but can't change the travel distance. Am interested.
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Old 10-19-2012, 07:18 PM   #29
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Hey AZ. I get the concept except one thing. It seems The spring allows the TOB to engage earlier because the spring multiplies the tension being applied by the pedal. Did I get that right? The actual pedal height stays the same.
Actually, they spring will fight against the engagement of the TOB. Now keep in mind, this spring is not really very heavy. It has enough tension to push the clutch fork away from the pressure plate. Here is a better look at the spring the creator of the mod (lowflyn) used for his Cobra...Hillman Group Utility Compression Spring #47

For my pedal height, there is a link in the first post for a Maximum Motorsports Clutch Pedal Adjuster. This will allow me to change the pedal height. I'll take plenty of pics when I do this next week.
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Old 10-19-2012, 08:51 PM   #30
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Quote:
Originally Posted by Azure

Actually, they spring will fight against the engagement of the TOB. Now keep in mind, this spring is not really very heavy. It has enough tension to push the clutch fork away from the pressure plate. Here is a better look at the spring the creator of the mod (lowflyn) used for his Cobra...Hillman Group Utility Compression Spring #47

For my pedal height, there is a link in the first post for a Maximum Motorsports Clutch Pedal Adjuster. This will allow me to change the pedal height. I'll take plenty of pics when I do this next week.
I look forward to it.
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Old 10-21-2012, 08:57 PM   #31
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Here is my current quadrant setup.

photo1

photo2

I plan to put some shims (washers) on either side of the quadrant to make sure the cable is aligned with the quadrant correctly. This will make the cable last longer.
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Old 10-22-2012, 04:51 AM   #32
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I thought you had a factory quadrant?
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Old 10-22-2012, 06:05 AM   #33
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I thought you had a factory quadrant?
When they replaced my tranny a little over a month ago, the put this Ford Racing adjustable cable and quadrant in with it. I knew they used the adjustable cable, but I didn't know about the quadrant until after they had made an adjustment for me a few weeks ago. Theoretically, it's still under warranty, but I really want to put this pedal height adjuster on my ride. Also, they didn't seem concerned whether the TOB was riding on the pressure plate.
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Old 10-22-2012, 06:50 AM   #34
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I've never heard of it causing any problems or having premature failure and I've never had it happen to me... but I think its neat what your tryin to do and hell if it works I might try it on mine lol
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Old 10-22-2012, 09:31 AM   #35
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I've never heard of it causing any problems or having premature failure and I've never had it happen to me... but I think its neat what your tryin to do and hell if it works I might try it on mine lol
Really, my primary reason is for drivability. There is just a ton of extra travel that is not needed since I got the stage 1 clutch.

I've really only read a lot of talk about early wear on the TOB, never experienced it personally. It makes sense since you only need the bearing for switching gears. Another plus is that the free play mod will keep your pedal from being floppy when not depressed. The stock setup takes care if this with the spring loaded quadrant. Once you take it out, depending on how you have it adjusted, it could be floppy on top.
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