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Old 04-06-2019, 09:47 PM   #1
Chub
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1995 SC2
Default Rear Caliper Parking Brake Adjustment

Anybody ever have any luck fixing these things when they stick or don't properly engage? I keep getting replacement calipers and they never seem to work for very long. I failed my state inspection because my parking brake doesn't work. I ran new cables recently, so I know they work fine. The issue is that the caliper levers either get stuck or don't move the piston at all. There doesn't seem to be too much information out there on how to rebuild them, either. Am I doomed to keep switching them out every few months? It just seems like a pretty poor design that fails too easily...

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1995 SC2: Back on the road again after my second engine rebuild in two years.

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Old 04-07-2019, 10:28 AM   #2
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2003 L-Series 3.0L Sedan
Default Re: Rear Caliper Parking Brake Adjustment

The unique rear disc brake design incorporating an inside cam to lever the caliper piston to act as a parking brake in addition to its normal mode of disc brake operation may be a little unusual. The easiest way to understand how it works and where it binds may be to disassemble an old one of you have one. Or remove one from a junk yard for disassembly. The strong return spring and rotating shaft to the lever arm may be the only major parts. Either the shaft creates an elongated hole or it needs lube to allow free rotation to the inside cam pressing on the caliper piston. Tapping the pivot shaft may free it from sticking.

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