Rear brake sticking after disc swap

[Dr.Phil]

Hi guys, i swap the drum for disc on my 14B and now the rear brake are sticking, I used an hydraulic flow control for the proportionning valve in the line.
Free flow one way and control the other, and its not back ward!!!
Ive seen somewhere that there is a kind of pressure older in the master??? 10 psi for drum and 2psi for disc...what is that?

thanks
Phil

 

[Big-Hoe]

What calipers did you use? There is no check valve in your flow control, right?


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[Big-Hoe]

Sorry, isn't a flow control valve designed for systems with a return loop?


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[Big-Hoe]

And the master is designed for 4wheel disc brakes.....


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[mucovich]

I know when i first set my 14b disks up the first time the where "stuck" in place, in fact i tore them apart and put them back together but still the same thing. So i figured what the hell, maybe they'll loosen off once i drive it a few miles and low and behold they did, perhaps you just need to get out and drive a few k's. i am using an adjustable proportioning valve so mines dialed right in.

 

[Dr.Phil]

I used front gm 3/4 ton caliper, with a non disc mc. There is a check valve, but it's made design to free flow when i let the brake.
I have it like that for a year now, but i used it only to plow my lane way...and i'm planning a trip to the gorge in two weeks!!

 

[Dr.Phil]

Return loop? Never heard of that, what is it?

 

[Kunker]

I *think* some non-disc MC's have the residual pressure stuff in the MC itself - might be worth following that idea.

 

[Dr.Phil]

Yeah thats what i'm starting to think too, might have this residual thing in there.

 

[Dr.Phil]

Nothing in my master, but the caliper seem to stick.

Next thing to check...