proportioning valve, some ideas Options

[Trekkor]

I'll be covered in Motul before too long. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)

Was kicking around the idea of opening up the prop valve and taking it all apart, rendering it a "tee".

Anybody done this?
Sure, just using a "tee" is easier. This is just something to do. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif)

Exploded view would be nice.

KT

[914GT]

QUOTE (balljoint @ May 10 2005, 05:21 AM)

Does brake fluid sit in the cylinder with the spring or is it sealed off from the system? If it is full of fluid then it is already essentially an extra reservoir in the middle of the system. If it is just air in there then will it leak fluid to the outside if the seal breaks down or will it leak air into the system? If it is leaking air into the brake lines without spilling brake fluid to the outside then it becomes a difficult to detect source of air in the line.

There should be no fluid on the spring side. It might leak fluid if the piston seal went bad, but on two of them I've disassembled they were both good. I've heard of one-way leaks where air goes in but no fluid comes out but doesn't make much sense. The high system pressures will force fluid out if there are any bad seals or poor fittings, and air could be drawn back in once the brake pedal is released.