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Take the drum off and inspect the shoes and the inside of the drum. It is not possible to inspect the brakes any other way, and chances are just about anything you can think of is speculation at this point.I checked for oil on the back plate today and the drum, back plate, and tire is bone dry... not a drop of any kind of fluid. I still haven't pulled the drum yet... thats soon to come.
How does that work? it doesnt make any sense to me. i would think that getting a lubricant on a mechanism thats designed to create friction would have the opposite effect and make it almost impossible for the brakes to work.i've seen leaky axle seals make a rear wheel lock up. the 90wt makes the brake shoe work way too good.on heavier leaks if you look at the side wall facing in you can see where oil is spun out of the drum onto the tire.
my guess is that the burnt byproduct of the 90wt makes the pads grab more
How does that work? it doesnt make any sense to me. i would think that getting a lubricant on a mechanism thats designed to create friction would have the opposite effect and make it almost impossible for the brakes to work.
Thanks... I had no idea there was no prop. valve... I guess trouble shooting from my desk doesnt always work... In the past few days the brakes have gone from locking up on one side with little pressure to locking up on both sides with moderate pressure. So now the brakes are more tolerable, it takes more pressure to lock them up... I still havent taken the drums off. I bought shoes to install but now that you said it it seems like the brakes are off center. When I'm stopping the rear end kinda shudders... like it is catching on one spot each time it rotates...PRoportioning valve? Only if YOU added one rangers don't use them.
SOME early rangers ('83-85) have/had a pressure differential switch that some ignorant people call a proportioning valve, (they can call it a nuclear propultion reactor if they like but that doesn't make it one..)
'86-87 had nothing at all, and starting in '87 SOME Rangers had RABS.
Locking brake on one side but not the other?
I'd look at the side that IS NOT locking and expect to find a seized wheel cylinder.
Out of adjustment brakes would cause both sides to be "Flacid"
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can you go into more detail about this?It is fiurther complicated by the fact that the front brakes are not driven directly by pedal pressure, but rather by a spring inside the master cylinder that is pushed on by the piston that applies the rear brakes.
Simply changing that spring can have a profound effect on brake response relative to pedal pressure.
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