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Brakes


414TATA

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Had new brake shoes and master cylinder installed 500 miles back on my 1941 Buick Super.   When I picked up the car I was disappointed the pedal was still on the low side and soft.  Almost as low as when I took the car in for new shoes. Mechanic suggested I drive it a few hundred miles come back and he'd adjust the brakes.

I did what I think is a normal break in for new shoes.  So here is the question.  Can the pedal height increase as brakes break in? They are now high on the pedal,  firm and stop well so I'm happy.  Just wondering how this can happen?

 

Edited by 414TATA (see edit history)
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As the new shoes bed in, the high spots are worn down until the surface matches the I.D. of the drum. This increases the overall distance between the two contact surfaces. When the shoes are re adjusted, the clearances are tightened up and, "Voila", the pedal height increases. Brake shops used to arc the shoes to eliminate the bedding in process, but not so much any more as the brake dust is pretty nasty stuff

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