GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » [GMCnet] Disc brake project still in failure mode
Re: [GMCnet] Disc brake project still in failure mode [message #282477 is a reply to message #282472] Sun, 19 July 2015 13:44 Go to previous messageGo to previous message
Neil Fonville is currently offline  Neil Fonville   
Messages: 68
Registered: May 2014
Karma:
Member
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.

On 7/19/15, 1:31 PM, "Gmclist on behalf of A."
wrote:

> Neil Fonville wrote on Sun, 19 July 2015 12:32
>> So I went back out again today to collect a bit more info. So I put
>> the pressure gauge on the output of the combination valve. I got a
>> consistent reading of 500psi.
>>
>> My procedure was engine running, pump 5 times and hold for 1 min.
>> Gauge went to 500 with every press and held at 500 without fluctuation.
>> When I
>> did this same procedure on the MC got 800-900psi. So do I have a clog
>> in the combination valve?
>>
>> Thanks for the input
>> Neil
> You definitely have something strange happening between those two test
> points. Call me a nag if you want, but it sure seems like you are testing
> two
> different lines.
>
> To verify it is the combination valve, repeat the test with the gauge on
> the input side of the combination valve.
> --
> '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.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org


_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org



1975 GMC II Allen, TX
 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: Brake Switch Repair
Next Topic: [GMCnet] New GMC
Goto Forum:
  


Current Time: Tue Oct 01 08:10:28 CDT 2024

Total time taken to generate the page: 0.02377 seconds