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Old 09-24-2017, 12:32 AM
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Default ABS Disc Brake Conversion Kit Problem

HI GUYS I havent been on the forum for a while. BASIC PROB WAS INTERMITTENT BRAKE PEDAL DROP NEARLY TO FLOOR..
I bought an ABS DISC BRAKE KIT, thru THUNDERBIRD HEADQUARTERS, to get the all impotant booster MNT brkt that clears the A/C plenum..so far so good...finally installed with the usual brk pedal custom fit car guy stuff.. SEEMED to work great THEN intermittent brk pedal drop...still some brks but almost to floor. and then ok after a couple pumps.typical M/C or hydraulic prob , right....this problem never showed up for me,, only when it went for the required Mech inspection for our Modified Collector Licence...the TECH HAD IT HAPPEN TWICE...of course FAIL!!! ..I finally looked at it on the hoist...no leaks anywhere.. pedal, now, was perfect...on a good look at the front calipers...they were marked up, or rubbed on the back side of the caliper casting...at full lock L or R one of the calipers was being pushed back by the SWAY BAR END LINK...STOCK sway bar..so of course the caliper/pad was now pushed away from the disc.and needed pumps to refill the caliper..
I cant believe that this hasnt showed up on this forum before..I am sure this kit has been used by members before me??? anyway easy fix JUST MODIFY WHEEL TRAVEL AT LOCK TO LOCK TRAVEL PADS.[there is about 1 inch to make up when the caliper touches the sway bar.]weld in new stop or install adjustable custom stop bolt or??? this will change turn radius, but , OH WELL...This could have been a major dollar bust by takin it to the LOCAL GUY, and havin him change all the hydraulic stuff, and still not "git er fixed" HOPE THIS HELPS SOMEONE ELSE...Intermittent low pedal is not always what it seems CHEERS TERRY

Last edited by BEVS BIRD : 09-24-2017 at 12:35 PM. Reason: stuff
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