Brakes 1979 CJ5 Proportion valve question - new
Steffan
Jeeper
New CJ owner and I’m learning a lot. I’ve had it for a few months now and have based lined it: all new gaskets on the engine, axles, etc…. All new fluids… went through the entire wire harness… on and on..
After getting it back together and driving it around the proportioning / metering valve started to leak. After reading some threads it seemed to be a thing so I ordered a new one. Of course, getting the old one off was horrible - all the nuts were cold welded to the valve: had to use a torch to heat each of the 5 nuts in order to remove… all the while not burning the whole vehicle down.
Then, the new valve’s rear outlet port was way too big for the line. They supplied a new nut nut that would mean cutting and re-flaring the line, under the vehicle. Instead I tried swapping the old outlet port with the new one along with the new o-ring. Seemed to fit fine.
Upon cleaning the old port I noticed what seemed to be a breather valve. Rubber flap held in by a push nut. I didn’t think much of it at the time until I started to bleed the breaks and it pushed out like a pimple!
Long intro into the question - what is this and what is the purpose of? Is this the way it’s supposed to behave? Thanks!
After getting it back together and driving it around the proportioning / metering valve started to leak. After reading some threads it seemed to be a thing so I ordered a new one. Of course, getting the old one off was horrible - all the nuts were cold welded to the valve: had to use a torch to heat each of the 5 nuts in order to remove… all the while not burning the whole vehicle down.
Then, the new valve’s rear outlet port was way too big for the line. They supplied a new nut nut that would mean cutting and re-flaring the line, under the vehicle. Instead I tried swapping the old outlet port with the new one along with the new o-ring. Seemed to fit fine.
Upon cleaning the old port I noticed what seemed to be a breather valve. Rubber flap held in by a push nut. I didn’t think much of it at the time until I started to bleed the breaks and it pushed out like a pimple!
Long intro into the question - what is this and what is the purpose of? Is this the way it’s supposed to behave? Thanks!