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Private
I hate to sound like a 'Safety-Nazi', but.....
For the safety of yourself and others, you really should rebuild, or replace all four wheel cylinders, and the master cylinder if this vehicle is driven on the road.
The stock single circuit fluid system has no fail-safe if any part of the system loses pressure.
At least make sure the parking/emergency brake is working.
Roy
Sergeant
This is an excellent time for putting a double circuit master cylinder.
Corporal
LOL, I guess somebody's gotta do it...Originally Posted by gerrykan
I started to suggest that the whole system is due for upgrades myself, but it sounds like it isn't driven.. and I know how that budget thing goes. Having to replace the whole system on mine piece at a time.
Administrator
Hey, guys, been awhile, tooooo long! I'm bringing my M715 back to life and ran into the same thing, brake pedal to the floor. Over the years I've had to replenish the brake fluid every once in awhile, but now it's a pretty good leak. I noticed the paint on my firewall/floorboard blistering pretty badly, points to a hosed master cylinder. I'm not going to deal with a rebuild, either stock or dual-circuit. A bit late in the day now, I'll search tomorrow... Later.
"other peoples junk, is something or other" - Militarypotts 02/07/2011
Sergeant
So common. Dumps the fluid on the floor and blisters the paint. If a slow leak, it evaporates so you keep looking for where it is leaking.
SFC, HQ,129th Sig Co, PAARNG, Vietnam Era
Administrator
The truck's had a phantom leak for some time, M/C goes dry when sitting for lenghts of time, never found trails down tire sidewalls, backing plates, or puddles on the ground. I've already upgraded all 4 slaves with Ford items, had good, solid pedal when used, so I'm pretty confident the M/C pushrod is THE culprit, just never spent enough time "down under" to see the telltale signs. I've got the dual-circuit Cardone on the way. I am a bit concerned, the pic on Amazon appears to be the disc/drum variety as the front and rear chambers are different sizes. I hope it's just a "stick photo" and it's REALLY a same volume/pressure front versus rear that I need for a drum/drum setup. It came from Iowa, should have had jeepistdoug checked it.
"other peoples junk, is something or other" - Militarypotts 02/07/2011
Private
The outputs on the cardone 10-1371 which is disc/disc are 9/16 for front and 1/2 for the rear. get reducers for your line size. also the stock block for the brake lines should be replaced with a proportioning valve from wildwood and is adjustable for rear output. I just did this on my truck and am dealing with a 49 yr old brake line that decided to leak when I tried to move it. and doesn`t want to come off front brake hose.
Administrator
Poop, I got the 10-1331 coming.
"other peoples junk, is something or other" - Militarypotts 02/07/2011
Private
the 10-1331 has a bigger piston 1 1/8 same size outputs. it will work. so don`t fret.
Administrator
But it is a disc/disc or drum/drum? Same pressure & volume from each output?
"other peoples junk, is something or other" - Militarypotts 02/07/2011
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