logansportage
Body Damage is Cool
Reged: 04/22/02
Posts: 1217
Loc: Logan, Utah
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Re: Weak Brakes
07/11/08 01:02 PM
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OK, just going to throw this out because I had the same thing on another vehicle last week.
I pulled the drums to check everything before a trial run. I got in and bam, clear to the floor. I though what the crap! Everything looked good with plenty of shoes left. I spent two days bleeding and re-bleeding the breaks. Nada! If I pumped them I could get them to be hard as rocks but then they would fade clear to the floor after a couple of minutes. Also, if it sat there for more than 10 minutes it would slam straight to the floor again. I replaced the master cylinder thinking it was bleeding back past a seal. A little better, but the same problem. If it sat it would still go straight to the floor on the first pump.
Then I had a euphony and realized I have forgotten to adjust the “self adjusting” star adjuster on each wheel. I jacked up each end and adjusted the “self adjusting” star adjuster until when I would spin each wheel you could hear the shoes dragging against the drums.
Tada! Breaks back, no slamming to the floor on the first pump, no having to pump the breaks to compress the air that wasn't there, and it stops on a dime now with a firm pedal that never fades. So much for the automatic “self adjusting” part. Just like a self cleaning oven, you’re cleaning/adjusting it your “self”.
So, if you've had the rear drums off recently you need to probably pull them off again, lube up the so called automatic star adjuster, and then once it's all back together adjust the star adjuster so the rear drums just start to drag when you spin the wheel.
Logansportage 
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White 1998 4 door KIA Sportage 4x4 w/Eibach 2.5 spring lift and TJ rear coils, 4crawler 1.5 body lift, Monroe Sensa.trac shocks, Bosch 4+ plugs, Eaton LSD, 31x10.5x15 BFG KM tires, 2.5 cat back exhaust w/SpinTech muffler
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