Sweptline.ORG

HUGE RED FLAG HERE:
THERE IS NO FACTORY PROPORTIONING VALVE ON A SWEPT!

... the pedal was still spongy and wasn't returning. He nodded and said "Proportioning valve". I nodded back and told him I'd tracked one down and installed it, and the pedal was ...

... setup is different. I would guess there is air in the system. With the proportioning valve, it is very difficult to get air out of the rear system completely. I used my MityVac ...

... I'm currently running an aftermarket drum/disc non-adjustable proportioning valve. I'm about to try a wilwood adjustable proportioning valve instead to see if maybe I'm ...

... $13 and BH36956, $6. Rotors: pair from Amazon not available now: $51. Proportioning Valve: Wilwood 4444/30 260-11179, $83. I also used a 3/8"-24 Inverted Male Flare Plug on one ...

... I'll be installing the power steering first so that I know where the proportioning valve and brake lock for the winch can go so as to minimize entrapped air for bleeding.

Time to revive this thread.....finally got the engine in along with the trans. Got it all running Saturday and next will be the disc brake plumbing and adding the proportioning valve. I’ll post some pics when I get time. The cam sounds pretty nasty with open manifolds!

... master cylinder with a 7/8 bore unit from Wilwood, add an adjustable proportioning valve and a line-lock, replace all the brake lines, and hoses back to the rear axle. I'll probably ...

That makes things a whole lot easier! I'm fairly new to working on older vehicles with drums all the way around. I appreciate everyone's help!

There is no proportioning valve on a factory swept.
What many people mistake as a p.v. on the dual masters is the brake safety switch, which senses a loss of pressure in either front or rears and illuminates a red light on the dash.

... master cylinder. I've taken a dual pot from a 69 D200. Would I need a proportioning valve for it? If so, where would I find one? I've looked high and low and can't seem to find ...

I don't think so. Only if you were going to go to disc brakes in the front is how I understand it.
jim

... master cylinder. I've taken a dual pot from a 69 D200. Would I need a proportioning valve for it? If so, where would I find one? I've looked high and low and can't seem to find ...

Which Wilwood do you plan to go with?
jim

I will be installing the Wilwood tomorrow. I also have the SSBC just in case.

For those who have gone to disc brakes in front. What proportioning valve works best?
Thanks,
jim

... side. I can use my 70 drag/center link? Master cylinder for disc drums. Proportioning valve for disc drum. Any other tips? Im in no hurry luckily. Thanks, jim

If going to disc brakes I thought I read here that one needs to use a disc brake master and also use an proportioning valve?
This was for a disc dana 44 swap but seems like it would be the same?
jim

... I need to replace the distribution block on the frame with a adjustable proportioning valve? Anybody run into this before? Brandon in Oklahoma

... I've gotta disagree with you on the function of the residual pressure valve. As per Wilwood's website (about 2/3's down the page http://www.wilwood.com/MasterCylinders/MasterCylinderValves.aspx): ... under-floor m/c where gravity will return excess fluid. To the OP, the proportioning valve should ...