Home » Public Forums » GMCnet » [GMCnet] Disc brake project still in failure mode
| Re: [GMCnet] Disc brake project still in failure mode [message #282486 is a reply to message #282483] |
Sun, 19 July 2015 15:27   |
Neil Fonville
Messages: 68
Registered: May 2014
Karma:
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Yes I did swap the lines. Front line on the old moved to Back on new MC.
And vice versa.
What is a Step bore in the MC?
On 7/19/15, 2:54 PM, "Gmclist on behalf of James Hupy"
wrote:
> I am saying that IF you still have the original metal brake lines that
> went
> to the ORIGINAL MASTER CYLINDER, when you install the P-30 master
> cylinder,
> in order to install the lines without adapting anything, the OEM line
> fittings must be swapped in order for them to screw into the P-30. AS THE
> ORIGINAL RESERVOIR IN THE FORWARD MOST POSITION IS FOR THE REAR DRUM
> BRAKES, IF YOU SWITCH THE LINES, THE RESERVOIR THEN BECOMES THE FRONT
> BRAKES. I didn't say that was right or wrong. That is the way I install
> the
> P-30. Haven't had any issues just swapping the lines. When I have to
> replace the lines, as is often the case when you mess with the
> distribution
> valve fittings, I use the same size lines. I personally cannot tell the
> difference either way it is done.
> If you are seeing different pressures at the distribution valve, you
> either have a step bore in the P-30 MC or a restriction somewhere
> downstream from the MC.
> JIM HUPY
> Salem, Or
> 78 GMC ROYALE 403
> On Jul 19, 2015 12:33 PM, "A." wrote:
>
>> Neil Fonville wrote on Sun, 19 July 2015 14:04
>>> I have the P-30 MC and the back port of the MC is the rear brakes and
>> is
>> the larger of the two fluid lines. Do I have that wrong?
>> Mr. Hupy said the larger goes to the rear. JP Winger's gallery on the
>> photo site says the larger goes to the front. Since that is conflicting
>> info,
>> you need to trace the line yourself. If the line with the larger
>> connection on the master cylinder goes to the end of the combination
>> valve
>> that
>> splits to the fronts, it is the line to the front.
>> --
>> '73 23' Sequoia For Sale
>> '73 23' CanyonLands For Sale
>> Upper Alabama
>> On "marriage equality": Once you define the direction that society is
>> headed as "forward", you can call it progress.
>>
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