Thread: Warp This!!!
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Old 05-15-2004, 11:02 AM
James Scott James Scott is offline
The Molinator
 
Join Date: Nov 2002
Location: Fresno, CA
Posts: 1,002
FREEZE this!

The latest in my WARPED BRAKE journey:

Two nites ago, I was coming home and the warpage I've been talking about seemed worser (that's right! WORSER!). It actually seemed like something broke, since there was a distinct rattling sound then when I braked. I felt I needed to check this out for safety reasons, so I took the wheels off, inspected the pads and rotors >> Nothing obviously wrong (?)!

Some of you know I had purchased caliper pins, thinking they could be one of the very few causes of this continual warping of rotors. I didn't take the time to install them when (about two months ago) I put my last turned (cross-drilled) rotors back on (because the stock rotors had warped) because the pad wear seemed even (apparently no stuck or sticky caliper pin).

So, Thursday nite (11pm to 2am) I diddled around hoping to find some obvious malfunction or break (thought a pad may have partially delaminated?), but only noticed a mild to moderate movement in the floating part of the caliper. IS IT NORMAL FOR THE FLOATING SECTION TO WIGGLE (IN THE CALIPER PIN "SLOP") FOR ABOUT 1/16"+ MOVEMENT WHEN GRABBED AND TORQUED BACK AND FORTH? I replaced the caliper pins which I had purchased some time ago, but realized in doing so that the AREA OF WEAR IS ON THE CALIPER BODY, NOT THE PINS!!! Because of this fact, installing the new pins would not eliminate the "slop", BUT SURPRISINGLY SEEMED TO IMPROVE THE WARP SHIMMY (?)!

SOOOOOOOOOooooooooo!, again: IS THE FLOATING PART OF THE CALIPER SUPPOSED TO BE FAIRLY RIGID (VERY LITTLE MOVEMENT IF TWISTED BACK AND FORTH) >> IF SO, THEN I SHOULD REPLACE THE CALIPERS (OR AT LEAST THE CALIPER BODIES) WHERE THIS WEAR IS EVIDENTLY TAKING PLACE! This might explain the unexplainable continual warpage of rotors.

PLEASE LET ME KNOW, Thanks!
__________________
Jim
1995 Laguna Blue SVX AWD L - 240K (daily driver) - "ReBuILT" used engine at 236K miles (6/13)
2013 Veloster Red - Driver Now??Dropsprings [1/2" rear, 1" front] with Koni Strut Inserts> Magnaflow Exhaust System> ECUTune Stage 1av1 Upgrade (from 1v4)> ECUTune TCU MOD> Aluminum Crankshaft Pulley> Stainless Brake Lines> Phenolic Spacers> Perforated Brake Rotors (dint like, OEM now)> SmallCar Shift Kit (resting since TCU MOD)> 7-Position Ground System> High-Pressure Fuel Pressure Regulator (resting)> ATF Cooler & Campaign Filter> Yellow Polish Polyurethane Bushings> Pioneer Double-DIN Stereo with JL AUDIO Speakers> Driveshaft Rebuilt with C-Clip U-Joints> 15 Min MOD> 20 Min MOD .. . (2011)
Valentine One Radar Detector with Remote Display - ucan'tseeme!

Last edited by James Scott; 05-15-2004 at 11:05 AM.
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