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| Parking brake drag (Page 2/2) |
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theogre
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AUG 16, 11:15 PM
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1. Hand Lever should "go tight" before the top... ~ 3 to 8 clicks. More or Less then cable(s) &or calipers have problems.
2. You "adjust" P-brake by moving the lever and "seems to work" is more "proof" that the piston is F'd on top of iffy cable(s).
Pad drag "a bit" can be normal, more so w/ wheel off so rotor is loose, but problems w/ piston(s) sliders or more can drag and get worse fast then warp a rotor to brake fail or fire.
https://web.archive.org/web...cast.net/~fierocave/ rear brakes------------------
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
(Jurassic Park)
The Ogre's Fiero Cave
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1985 Fiero GT
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AUG 16, 11:46 PM
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Yeah. I reread the articles in your cave, I will do some fiddling tomorrow, and see about various adjustment methods, it is a weird problem though.
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Vintage-Nut
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AUG 17, 11:23 AM
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| quote | Originally posted by theogre:
You "adjust" P-brake by moving the lever and "seems to work" is more "proof" that the piston is F'd on top of iffy cable(s). |
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'Yeah', I agree with Ogre; you have piston actuator / parking mechanism issues.....
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1985 Fiero GT
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AUG 24, 10:09 PM
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Ok, after some further fiddling and leaving it with the parking brake properly engaged for a few days I have theorised that before any adjustment, when the brake was only actuating in the one side, the internal piston was somehow frozen and being held away from the outer piston. That way the parking brake actuator turned, and screwed the inner piston in, but because it was frozen, it never actually pushed on the brake pads. For whatever reason my flushing of the brakes and removal of the arm broke the inner piston loose, which allowed the parking brake to actuate normally. But it was still stiff from being stuck so long, so it didn't fully disengage when I initially tested it. Fast forward and after a few days of sitting with the mechanism engaged, it seems to have "reset" itself to the point where operation of the foot brake and hand brake independently and simultaneously leave the wheel free to spin when everything is released. I have yet to test this while driving, but my dad thinks that it has stopped dragging when he drove it. Either way careful attention will be directed to that wheel everytime the car gets driven (not alot, like 100km/month max) until a better caliper is obtained.
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buddycraigg
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AUG 24, 11:26 PM
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I followed Orge instructions and found a metal "for sell sign" that was of the correct thickness.
I cut it out to be the shape of a brake pad and have used it for making adjustments ever since.
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