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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 #365360 is a reply to message #365293] Sun, 11 July 2021 19:29 Go to previous messageGo to previous message
Greg C. is currently offline  Greg C.   United States
Messages: 224
Registered: October 2019
Location: Knoxville, TN
Karma:
Senior Member
John, 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.


Greg Crawford KM4ZCR Knoxville, TN "Ruby Sue" 1977 Royale Rear Bath 403 Engine American Eagle Wheels Early Version Alex Sirum Quad bags
 
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