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brake pedal height help #1488293
08/21/13 11:03 AM
08/21/13 11:03 AM
Joined: Jun 2003
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yellow70charger Offline OP
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Help , I have a 70 charger 4 speed with power disc brakes the pedal seems low to me (see pic) as it will not engage the brake light switch it seems this rod is too short (see other pic) Is this rod to short? or is the clutch pedal to high?

7822221-CLUTCH.jpg (289 downloads)
Last edited by yellow70charger; 08/21/13 11:15 AM.
Re: brake pedal height [Re: yellow70charger] #1488294
08/21/13 11:07 AM
08/21/13 11:07 AM
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yellow70charger Offline OP
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pic of rod

7822227-ROD.jpg (230 downloads)
Last edited by yellow70charger; 08/21/13 11:09 AM.
Re: brake pedal height [Re: yellow70charger] #1488295
08/21/13 11:12 AM
08/21/13 11:12 AM
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yellow70charger Offline OP
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angle pic of pedal

7822233-clutch2.jpg (221 downloads)
Last edited by yellow70charger; 08/21/13 11:13 AM.
Re: brake pedal height help [Re: yellow70charger] #1488296
08/21/13 11:22 AM
08/21/13 11:22 AM
Joined: Nov 2003
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Lincoln Nebraska
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RapidRobert Offline
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Quote:

Is this rod to short?


Yes that one is way too short.


live every 24 hour block of time like it's your last day on earth
Re: brake pedal height help [Re: RapidRobert] #1488297
08/21/13 11:36 AM
08/21/13 11:36 AM
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yellow70charger Offline OP
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do you know where i could get a correct one?

Re: brake pedal height help [Re: yellow70charger] #1488298
08/21/13 12:38 PM
08/21/13 12:38 PM
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Oklahoma
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VoodooCLD Offline
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I was under the impression this was because of the power brakes which puts the pedal at a much lower position than the clutch.

I have the same issue, and was just gonna leave it. If there is a good fix, then i'm interested as well.

Re: brake pedal height help [Re: VoodooCLD] #1488299
08/21/13 12:44 PM
08/21/13 12:44 PM
Joined: Jan 2003
Posts: 32,947
Grand Prairie,Texas
stumpy Offline
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I always thought that was normal pedal height for power brakes and the brake light switch is adjustable. Do you have the rear brakes adjusted to where they bearly contact the drums? That will bring the pedal up some.

Re: brake pedal height help [Re: yellow70charger] #1488300
08/21/13 02:34 PM
08/21/13 02:34 PM
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Rio Linda, CA
John_Kunkel Offline
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Pedal height mismatch is common with power brake/stick shift combos, it's because the brake pedal ratio is lower with power brakes.


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Re: brake pedal height help [Re: John_Kunkel] #1488301
08/21/13 05:27 PM
08/21/13 05:27 PM
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yellow70charger Offline OP
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adjustabe switch should do it then( to solve brake lights), and be happy with it or may two heim joints and adjust/trim thread to make it a adjustable height.

Re: brake pedal height help [Re: yellow70charger] #1488302
08/21/13 05:36 PM
08/21/13 05:36 PM
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Morristown Tn.
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71birdJ68 Offline
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As long as it doesn't bottom out on the floor, its ok. If you read the service manual it tells you that power brake pedals are further down than manual pedals.Thats so you can keep your heel on the floor and not throw every body threw the windshield.

Re: brake pedal height help [Re: 71birdJ68] #1488303
08/21/13 05:39 PM
08/21/13 05:39 PM
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yellow70charger Offline OP
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that makes sense thank you for the responses i guess i'll leave it and get the switch

Re: brake pedal height help [Re: yellow70charger] #1488304
08/21/13 05:41 PM
08/21/13 05:41 PM
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Morristown Tn.
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71birdJ68 Offline
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Also there is measurement for the switch. Look in the book.

Re: brake pedal height help [Re: 71birdJ68] #1488305
08/21/13 06:10 PM
08/21/13 06:10 PM
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IL, Aurora
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ademon Offline
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Also the low brake pedal helps with a 4 speed on a hill when you have to tap dance the three pedals on take off!

Re: brake pedal height help [Re: yellow70charger] #1488306
08/21/13 09:02 PM
08/21/13 09:02 PM
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Santa Cruz, California
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Lefty Offline
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Quote:

do you know where i could get a correct one?




Dr Diff has them. http://www.doctordiff.com/62-70-adjustable-master-cylinder-push-rod.html

Re: brake pedal height help [Re: Lefty] #1488307
08/21/13 09:18 PM
08/21/13 09:18 PM
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Supercuda Offline
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Quote:

Quote:

do you know where i could get a correct one?




Dr Diff has them. http://www.doctordiff.com/62-70-adjustable-master-cylinder-push-rod.html




That's for a manual brake setup I believe.


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They say there is always the exception that proves the rule.
Don't be the exception.
Re: brake pedal height help [Re: Supercuda] #1488308
08/21/13 09:20 PM
08/21/13 09:20 PM
Joined: Jan 2003
Posts: 32,947
Grand Prairie,Texas
stumpy Offline
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You could just try adjusting the switch that's already there.

Re: brake pedal height help [Re: 71birdJ68] #1488309
08/22/13 12:25 PM
08/22/13 12:25 PM
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Oklahoma
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VoodooCLD Offline
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Quote:

As long as it doesn't bottom out on the floor, its ok. If you read the service manual it tells you that power brake pedals are further down than manual pedals.Thats so you can keep your heel on the floor and not throw every body threw the windshield.




Hahaha! This made my morning.

Re: brake pedal height help [Re: VoodooCLD] #1488310
08/22/13 04:08 PM
08/22/13 04:08 PM
Joined: Feb 2012
Posts: 4,454
Morristown Tn.
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71birdJ68 Offline
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Morristown Tn.
If you notice, power brake pedals are about even with the gas pedal. They did that for a reason. Manual brakes, you have to use your whole leg, so you need the extra leverage to get the job done. Power brakes, the booster is doing the work.
What amazes me is back in the day, everybody knew this.Now, its forgotten.

Last edited by 71 RR- J68; 08/22/13 04:11 PM.
Re: brake pedal height help [Re: 71birdJ68] #1488311
08/22/13 06:17 PM
08/22/13 06:17 PM
Joined: Jan 2003
Posts: 25,881
Rio Linda, CA
John_Kunkel Offline
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I don't think the power pedal height is by design, as I stated earlier, it's just a consequence of the different pedal ratio for power/manual (as the pedal ratio decreases the pedal drops).


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Re: brake pedal height help [Re: John_Kunkel] #1488312
08/22/13 06:20 PM
08/22/13 06:20 PM
Joined: Feb 2012
Posts: 4,454
Morristown Tn.
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71birdJ68 Offline
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Morristown Tn.
Read the service manual.

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