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| Re: [GMCnet] master cylinder [message #91514 is a reply to message #88935] |
Sat, 10 July 2010 16:20   |
pete lyons
Messages: 81
Registered: June 2010
Karma: 0
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it ended up being a failed master cylinder, that was leaking out the rear.
Probably the original one. My good friend (GMC mechanic) brought a "power
bleeder" over and made really quick work of flushing the entire system.
Once the wheels were off, we saw two other problems. A loose ball joint bolt
had struck the CV joint and ripped the boot and band.
On the other wheel it looks either a loose axle nut, or a failed wheel
bearing.
Pulling the old exhaust out today!
On Fri, Jul 9, 2010 at 6:47 PM, pete lyons <meandmygmcmh@gmail.com> wrote:
> I think i was at one time, but a few years ago i totaled up all the
> memberships and decided to put that money into fixing the coach.
>
> Buying a GMC is much like getting married (IMHO), you spend a ton of money
> at the wedding, splurge for the honeymoon, and then just work on the "honey
> do's".
>
> I've actually downloaded apps to a few chapters, and re-up my fmca
> membership.
>
> I believe it was the master that failed, but I'll be able to provide more
> info tomorrow when we pull it and flush the lines. Heck, while it's up on
> the jacks and the wheels are off, I'm finally going to take and get the
> tires taken off and put on some round wheels that Ken Burton was kind enough
> to bless me with, and then start putting on my headers and exhaust!
>
> pete
>
>
>
> On Fri, Jul 9, 2010 at 6:36 PM, Charles <gcw13@sbcglobal.net> wrote:
>
>> Pete,
>> Go to the international parts interchange list. It has several listed.
>> You are a member aren't you?
>> Charles
>> _______________________________________________
>> GMCnet mailing list
>> List Information and Subscription Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
>
> --
> Pete Lyons
> New Albany, IN
> 76 Eleganza II "Optimus Prime"
>
--
Pete Lyons
New Albany, IN
76 Eleganza II "Optimus Prime"
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Master Cylinder Push Rod [message #91595 is a reply to message #88938] |
Sun, 11 July 2010 21:50 |
fred v
Messages: 999
Registered: April 2006
Location: pensacola, fl.
Karma: 0
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would extending the rod on an OEM system give me a higher pedal. a buddy and i were talking about this after redoing his brakes.
Fred V
'77 Royale RB 455
P'cola, Fl
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| Re: [GMCnet] Master Cylinder Push Rod [message #91609 is a reply to message #91595] |
Mon, 12 July 2010 04:04 |
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mike miller
Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon
Karma: 0
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Senior Member |
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| fred v wrote on Sun, 11 July 2010 19:50 |
... would extending the rod on an OEM system give me a higher pedal. a buddy and i were talking about this after redoing his brakes.
|
Most likely it would do "bad things" to your brakes.
The rod is sized to have a SLIGHT gap when no pressure is on the petal allowing the master cylinder to fully return to rest. If you have a rod that is to long, it may not fully release the brakes and/or refill the cylinder with fluid. It also could over drive the piston into areas of the cylinder that normally do not see use... causing additional wear on the seals. -- All bad things.
NOW... _IF_ someone has changed some of the parts in your system with non-oem parts and there isn't the correct gap at the end of the rod, it should be fixed. If you DO have to much gap, fixing it will give you a higher petal.
Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo'
http://m000035.blogspot.com
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| Re: [GMCnet] Master Cylinder Push Rod [message #91622 is a reply to message #88949] |
Mon, 12 July 2010 08:18 |
Surbo
Messages: 213
Registered: February 2004
Karma: 0
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Senior Member |
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| Larry wrote on Thu, 17 June 2010 07:54 |
I've heard that there is a adjustable MC pushrod. Anybody got a part #?
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Larry;
GM # 5469384, rod asm
As you can see, it is an old number. The one I have is still in the original package.
Bob D. in SESD
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