Home » Public Forums » GMCnet » Problem with brass body proportioning valve (Read about it in Winter 2021 Vintage RVing)
Re: Problem with brass body proportioning valve [message #365364 is a reply to message #365360] |
Sun, 11 July 2021 23:24 |
Bill Van Vlack
Messages: 419 Registered: September 2015 Location: Guemes Island, Washington
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Greg C. wrote on Sun, 11 July 2021 19:29John, thanks for addressing my question. Just so I am clear, in reading your reply it looks like my combination valve does have a proportioning component, but it provides the pressure applied to the rear brakes as a predetermined fraction of pressure applied to the front discs, in order to prevent premature rear wheel lock up.
Do I have this right?
If this is the case, it doesn't sound like the proportioning component is a bad thing.
Or am I wrong? Do I need to disassemble and modify mine?
After replacing every component in my brake system, changing to 80mm front calipers and 1-1/16" mid axle wheel cylinders, and bleeding with a Hupy style pressure bleeder, I am still not impressed with braking performance
Thank you.
The way I see it, the GM Engineers decided that they wanted full pressure to the rear brakes for some reason; perhaps because unlike passenger cars and pickup trucks, there is close to half of the weight of the vehicle over the rear wheels. It makes sense to me to have a combination valve that does not have a proportioning section that limits pressure to the rear brakes.
Bill Van Vlack
'76 Royale; Guemes Island, Washington; Twin bed, full (DS) side bath, Brazilian Redwood counter and settee tops,455, 6KW generator; new owner a/o mid November 2015.
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Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
By: blur911 on Fri, 09 July 2021 15:00
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
By: ebyker on Sat, 10 July 2021 07:43
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Re: Problem with brass body proportioning valve
By: MikeB on Sat, 10 July 2021 10:01
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[GMCnet] Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
By: Greg C. on Sat, 10 July 2021 19:05
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Re: Problem with brass body proportioning valve
By: Larry on Sat, 10 July 2021 20:24
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
By: Greg C. on Sun, 11 July 2021 19:29
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Re: Problem with brass body proportioning valve
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[GMCnet] Re: Problem with brass body proportioning valve
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Re: [GMCnet] Re: Problem with brass body proportioning valve
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[GMCnet] Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
By: wally on Mon, 12 July 2021 11:55
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Re: Problem with brass body proportioning valve
By: TR 1 on Mon, 12 July 2021 12:44
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Re: Problem with brass body proportioning valve
By: TR 1 on Mon, 12 July 2021 14:34
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
By: Greg C. on Mon, 12 July 2021 17:02
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
By: Greg C. on Mon, 12 July 2021 17:40
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[GMCnet] Re: Problem with brass body proportioning valve
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[GMCnet] Re: Problem with brass body proportioning valve
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Re: [GMCnet] Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
By: Larry on Sun, 01 August 2021 13:03
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
By: Larry on Sun, 01 August 2021 15:06
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Re: Problem with brass body proportioning valve
By: blur911 on Sun, 01 August 2021 16:00
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Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
By: Larry on Fri, 17 September 2021 17:49
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Re: Problem with brass body proportioning valve
By: blur911 on Sun, 10 October 2021 13:23
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Re: Problem with brass body proportioning valve
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[GMCnet] Re: Problem with brass body proportioning valve
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[GMCnet] Re: Problem with brass body proportioning valve
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[GMCnet] Re: Problem with brass body proportioning valve
By: jimk on Mon, 11 October 2021 20:17
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Re: [GMCnet] Re: Problem with brass body proportioning valve
By: blur911 on Wed, 03 November 2021 14:39
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[GMCnet] Re: Problem with brass body proportioning valve
By: jimk on Wed, 03 November 2021 15:26
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[GMCnet] Re: Problem with brass body proportioning valve
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Re: Problem with brass body proportioning valve
By: ebyker on Tue, 12 October 2021 14:59
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