Brake Shoe Centering Measurements

Posted by Kevin Daly on Sep. 24, 1998 at 14:46:20

Hi Folks,
I understand the importance of centering one's brake shoes to their drums as well as matching the shoes radius to the turned drums.
If I were using the K.R. Wilson brake shoe centering gauges to center my new shoes, should the fixed vs. expanding measurements be exactly equidistant from the center of the spindle/axle?Bratton's catalog suggests that the distances are equal on both the fixed and expanding ends of the shoes.
Les Andrew's book suggests a zero measurement on the fixed end and .010-.015 measurement on the expanding ends for both the front and rear brakes!
Who is correct?I think Les is correct.I believe that since the shoes are expanded only on one side, that the expanding side has further to move before it contacts the drum.The fixed side is the pivot point for the expanding shoe movement and therefore the fixed side requires very little movement before shoe to drum contact is made, thus Les' slightly less than equal measurements.
Would any of you care to give your thoughts on this one.I like to understand these types of theories before I apply them!
Thanks in advance for your responses.
Regards,
Kevin Daly

Follow Ups:
Re: Brake Shoe Centering Measurements Marco Sep. 25, 1998 at 10:37:06(0)
Re: Brake Shoe Centering Measurements DJ.Voyce Sep. 25, 1998 at 03:20:51(1)
Thank You DJ! Kevin Daly Sep. 25, 1998 at 06:46:26(0)

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