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Re: [GMCnet] Disc brake project still in failure mode [message #282480 is a reply to message #282478] Sun, 19 July 2015 14:04 Go to previous messageGo to previous message
Neil Fonville is currently offline  Neil Fonville   
Messages: 68
Registered: May 2014
Karma:
Member
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?

On 7/19/15, 1:56 PM, "Gmclist on behalf of A."
wrote:

> Neil Fonville wrote on Sun, 19 July 2015 13:44
>> I¹m not sure I have the plumbing parts to connect to the input of the
>> combination valve. I¹m certain I¹m testing the same line. The output of
>> the MC and combination valve for the rear brakes is a 9/16 connection.
>> I guess the line may have an issue from the MC to the valve but does not
>> seem likely.
> Other than the pressure differential switch, the combination valve for
> disk brakes is just a straight through pipe to the rears, and a "tee" to
> the
> fronts. The pressure drop you are seeing is in the line to the valve, or
> the valve. If you are pretty sure it isn't the line to the valve, then it
> has
> to be the valve. Replace it.
>
> OTOH, nag warning, you are measuring two different lines.
> --
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1975 GMC II Allen, TX
 
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