Just when you thought you knew it all, and seen it all, something like this pops up having been a Female Fleet Maintenance Mechanic and Operating Engineer for over 35 years, it has only happened to me once, so that should give you an idea of how rare this happens, the right front of most vehicles will always see more wear, tires wear more on the front right, because of a tighter turn radias, when turning right, the brakes get used a little harder on the right side too, why, I dont know, but the front right side disc pads are always worn more, maybe because hyd perssure will apply its self more to the line thats further away from the source, also a hyd. line will always burst, at the very end of a line, I could not belive that too, untill it was shown to me at a CNG training class, a metal line was twisted so it was a loop, hyd pressure was applied, and we were asked where the line would burst at, i said in the middle where the metal line seemed to be streched at, wrong, it bursted at the very end on the metal line, the right side caliper is the farther away from the MC than the left side, so its possible the R/S caliper being farther away from the MC was getting a little more pressure to it, because it was at the end farther away from the MC, Hydraulics are tricky,
I have been working with Hyd. for over 35 years, and 25yrs on automated robotics, on sanitation trucks, and it still gives me a bad time, I know i will never ever know it all Take Care and have fun, Chellie

 

Yep, I second that, I've had the same thing happen. Bad master cylinder in an SUV I was working on, only the pass side locked up. I had about 3 rednecks tell me the same thing (that it would lock both) and I said, well, I know this master cyl is bad, so I'm gonna go ahead and change it. And, well, I'll be darned. Fixed the problem!

 

I'm not saying your wrong at all, I beleve what you say and believe that the MC fixed your problem, I mean you state that it did, that's enough for me.

I guess I'm one of those Redneck's you mentioned. I mean, there are two output's from your MC, one for the front, one for the rear. How the heck did that MC decide to put more presure on the passenger side than the drivers side coming out of one port? I have an understanding of fluid dynamic's, I'll let it go at that. I've been wrong before and will be wrong again

 

the three rednecks were my dad and 2 of my brothers.

 

The rear brakes aren't used unless the brakes are fully pressed, or almost fully pressed... A master cylinder has the two ports the rear one is for the front brakes and the front is for the rear brakes.. The master cylinder has a small shaft under thease tanks so when you press the brake pedal lightly it activates the front brakes by letting brake fluid through the port andwhen you press the pedal all the way it pushes the shaft ad opens up the other port sending brake fluid to the front and rear making a sudden stop possible

 

At least I feel like a part of your family now I wish I lived in "west, by god, Virgina"