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Re: [GMCnet] Disc brake project still in failure mode [message #282148 is a reply to message #282140]

Wed, 15 July 2015 06:23

Neil Fonville

Messages: 68
Registered: May 2014

Karma:

Member

I have not lengthen the push rod at this point. I feel the .010 gap when
beginning to push the pedal. I guess I’m clueless on the braking system
because I don’t understand how .010 gap can lead to 2/3 of the pedal
stroke before braking action occurs? Or the pedal being soft?

I’m very frustrated at this point and must find some on hands help. I
spent about 20 hours installing the kit. 60 trying to bleed it and get the
MC replaced. Can’t be this hard.

Neil

On 7/14/15, 10:58 PM, "Gmclist on behalf of John Wright"

wrote:

> Neil,
> Are you still using the stock push rod between the brake booster and the
> MC or have you made a longer one? If you have the wrong length you can
> have these exact issues.
>
> Look at all the photos to build your own.
> http://www.gmcmhphotos.com/photos/master-cylinder-pushrod-gauge/p47330-an-
> easy-to-make-gauge-for-determining-pushrod-length.html
>
> JR Wright
> GMC Great Laker MHC
> GMC Eastern States
> GMCGL Tech Editor
> GMCMHI
> 78 GMC Buskirk 30’ Stretch
> 1975 GMC Avion (Under Reconstruction)
> Michigan
>
>> On Jul 14, 2015, at 11:24 PM, Neil Fonville
>> wrote:
>>
>> Went back at it today without much success. Removed the MC and made
>> certain it was bench bleed. No air bubbles when pushing the plunger and
>> fluid flowed in solid streams. I plugged the rear at the MC and the
>> front
>> brakes worked OK. Not great but not too bad. Pedal was solid.
>> Attached
>> rear and bleed with Hupy bleeder. Brake pedal was soft and no braking
>> action occurred until the pedal was 2/3 the way down. Drivable but not
>> real safe. Checked to make sure pads were seated on rear rotors and they
>> were. It did not take much pedal movement to stop the wheel moving when
>> jacked up and turned by hand. Really at a loss here.
>>
>> Is there anyone that can help find someone in the DFW area to come help
>> me? I¹m pretty much over my head now and about done. About ready to
>> list
>> it for sale and walk away. Lots of nice folks with these and have
>> provided some help but I just don¹t have the time or energy to deal
>> with a
>> storage queen. Already missed one trip due to this project and now
>> canceling another. I took a working coach with OK brakes and now have a
>> vehicle that is not safe enough to be on congested roads.
>>
>> Thanks,
>> Neil Fonville
>> Allen TX
>> 75 GMC II
>>
>>
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>
>
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1975 GMC II Allen, TX

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[Message index]

		[GMCnet] Disc brake project still in failure mode By: Neil Fonville on Sun, 12 July 2015 19:19
		Re: [GMCnet] Disc brake project still in failure mode By: Hal StClair on Sun, 12 July 2015 19:41
		Re: [GMCnet] Disc brake project still in failure mode By: Ken Henderson on Sun, 12 July 2015 20:01
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Mon, 13 July 2015 06:56
		Re: [GMCnet] Disc brake project still in failure mode By: Ken Henderson on Mon, 13 July 2015 07:13
		Re: [GMCnet] Disc brake project still in failure mode By: James Hupy on Sun, 12 July 2015 20:19
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Mon, 13 July 2015 06:59
		Re: [GMCnet] Disc brake project still in failure mode By: kerry pinkerton on Mon, 13 July 2015 08:35
		Re: [GMCnet] Disc brake project still in failure mode By: James Hupy on Mon, 13 July 2015 09:04
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Tue, 14 July 2015 22:24
		Re: [GMCnet] Disc brake project still in failure mode By: powerjon on Tue, 14 July 2015 22:58
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Wed, 15 July 2015 06:23
		Re: [GMCnet] Disc brake project still in failure mode By: Ken Henderson on Wed, 15 July 2015 08:28
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Wed, 15 July 2015 09:04
		Re: [GMCnet] Disc brake project still in failure mode By: Ken Henderson on Wed, 15 July 2015 09:23
		Re: [GMCnet] Disc brake project still in failure mode By: wally on Wed, 15 July 2015 09:33
		Re: [GMCnet] Disc brake project still in failure mode By: George Beckman on Wed, 15 July 2015 18:14
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Wed, 15 July 2015 18:35
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Thu, 16 July 2015 07:51
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Thu, 16 July 2015 16:34
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Thu, 16 July 2015 17:12
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Thu, 16 July 2015 17:29
		Re: [GMCnet] Disc brake project still in failure mode By: jimk on Thu, 16 July 2015 17:45
		Re: [GMCnet] Disc brake project still in failure mode By: Carl S. on Thu, 16 July 2015 20:44
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Sat, 18 July 2015 11:28
		Re: [GMCnet] Disc brake project still in failure mode By: wally on Sat, 18 July 2015 11:42
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Sat, 18 July 2015 12:10
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sat, 18 July 2015 11:57
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Sat, 18 July 2015 12:09
		Re: [GMCnet] Disc brake project still in failure mode By: Ken Henderson on Sat, 18 July 2015 12:51
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sat, 18 July 2015 13:10
		Re: [GMCnet] Disc brake project still in failure mode By: James Hupy on Sat, 18 July 2015 13:41
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Sat, 18 July 2015 14:17
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sat, 18 July 2015 14:46
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Sun, 19 July 2015 12:32
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sun, 19 July 2015 13:31
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Sun, 19 July 2015 13:44
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sun, 19 July 2015 13:56
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Sun, 19 July 2015 14:04
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sun, 19 July 2015 14:33
		Re: [GMCnet] Disc brake project still in failure mode By: James Hupy on Sun, 19 July 2015 14:54
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sun, 19 July 2015 15:28
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Sun, 19 July 2015 15:34
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sun, 19 July 2015 16:06
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Sun, 19 July 2015 17:58
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sun, 19 July 2015 18:11
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Sun, 19 July 2015 18:29
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sun, 19 July 2015 18:54
		Re: [GMCnet] Disc brake project still in failure mode By: Ken Henderson on Sun, 19 July 2015 18:48
		Re: [GMCnet] Disc brake project still in failure mode By: Ken Henderson on Sun, 19 July 2015 18:55
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sun, 19 July 2015 19:34
		Re: [GMCnet] Disc brake project still in failure mode By: James Hupy on Sun, 19 July 2015 21:00
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sun, 19 July 2015 21:47
		Re: [GMCnet] Disc brake project still in failure mode By: USAussie on Sun, 19 July 2015 22:08
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sun, 19 July 2015 22:51
		Re: [GMCnet] Disc brake project still in failure mode By: James Hupy on Sun, 19 July 2015 18:59
		Re: [GMCnet] Disc brake project still in failure mode By: USAussie on Sun, 19 July 2015 19:48
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sun, 19 July 2015 20:11
		Re: [GMCnet] Disc brake project still in failure mode By: USAussie on Sun, 19 July 2015 21:25
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sun, 19 July 2015 21:38
		Re: [GMCnet] Disc brake project still in failure mode By: Neil Fonville on Sun, 19 July 2015 15:27
		Re: [GMCnet] Disc brake project still in failure mode By: James Hupy on Sun, 19 July 2015 15:39
		Re: [GMCnet] Disc brake project still in failure mode By: wally on Sun, 19 July 2015 17:04
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Sun, 19 July 2015 17:11
		Re: [GMCnet] Disc brake project still in failure mode By: James Hupy on Thu, 16 July 2015 17:15
		Re: [GMCnet] Disc brake project still in failure mode By: KB on Wed, 15 July 2015 22:28
		Re: [GMCnet] Disc brake project still in failure mode By: Larry on Sun, 12 July 2015 20:38
		Re: [GMCnet] Disc brake project still in failure mode By: wally on Sun, 12 July 2015 20:38
		Re: [GMCnet] Disc brake project still in failure mode By: jimk on Mon, 13 July 2015 00:29
		Re: [GMCnet] Disc brake project still in failure mode By: jhbridges on Mon, 13 July 2015 07:58
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Mon, 13 July 2015 11:33
		Re: [GMCnet] Disc brake project still in failure mode By: A Hamilto on Tue, 14 July 2015 22:53
		Re: [GMCnet] Disc brake project still in failure mode By: Tom Whitton on Wed, 15 July 2015 10:47
		Re: [GMCnet] Disc brake project still in failure mode By: Tom Whitton on Sat, 25 July 2015 08:55

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