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Old 07-03-2019, 05:42 PM   #1
87chevy.com
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81-87 rear brake circuit have residual check valve stock?

Do 81-87 rear brake line/ circuit have residual check valve stock or is it just a strait shot from the combo valve to rear brake hose?
Thanks
Clint
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Old 07-03-2019, 05:48 PM   #2
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Re: 81-87 rear brake circuit have residual check valve stock?

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Originally Posted by 87chevy.com View Post
Do 81-87 rear brake line/ circuit have residual check valve stock or is it just a strait shot from the combo valve to rear brake hose?
Thanks
Clint
All the one's I've worked on were a straight shot after the prop valve. My 89 dually as well.
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Old 07-03-2019, 05:54 PM   #3
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Re: 81-87 rear brake circuit have residual check valve stock?

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Originally Posted by SCOTI View Post
All the one's I've worked on were a straight shot after the prop valve. My 89 dually as well.
Thanks, I looked and didnt see anything other than what looked to be unions... but wanted to ask just in case
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1999 BMW 528i - 5.7 LS1 w/ 4l60e, Ford 8.8 IRS w31 spline posi & FX-r projector retrofit
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Old 07-03-2019, 06:48 PM   #4
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Re: 81-87 rear brake circuit have residual check valve stock?

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Originally Posted by 87chevy.com View Post
Thanks, I looked and didnt see anything other than what looked to be unions... but wanted to ask just in case
Yep.... Unions are all I recall seeing as well.
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All Fleetsides

Building a small, high rpm engine
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like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.

Cubic inches is like Indiana Jones with a cheap pistol....
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Old 07-09-2019, 01:20 PM   #5
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Re: 81-87 rear brake circuit have residual check valve stock?

Wouldn't the Residual Pressure valve be located in the outlet of the Master Cylinder for the rear drum brakes?
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Old 07-09-2019, 02:21 PM   #6
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Re: 81-87 rear brake circuit have residual check valve stock?

Isn't there a valve in the prop valve that can flip and not give pressure to the rear? Should light up the BRAKE light on the dash. I believe there is a tool to hold it in place while bleeding
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Old 07-09-2019, 08:34 PM   #7
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Re: 81-87 rear brake circuit have residual check valve stock?

Cpp has a tool to keep the Brake light from tripping... pretty crappy quality, its threads are too small so it feels like it is cross treading.. will it work yeah, will it damage anything no, but I will probably mak a tool out of the old sensor that I probably wont ever use... I picked up cop disc / disc valve finally.. I'll install it in a few weekends.
Just replaced the rear drop brake line..
Sum b, had to replace the brake end fitting as it rounded off.
Clint
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1999 BMW 528i - 5.7 LS1 w/ 4l60e, Ford 8.8 IRS w31 spline posi & FX-r projector retrofit
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