Can't lock rear wheel up on adjuster.

Rob Needs

Rob Needs

Member
I thought i would give the brakes a once over today,I did it by the book and made the brake board.
But I can't get the rear passenger side to lock up when I have the board on the third notch, its tight but not locked. I can't lock the wheel up on the brake adjuster even without using the brake board.

The brakes aren't that old.
 
Wheel bearing grease or rear end oil on the shoes? I would pull the drum and check things out. It should lock up.
 
I would also measure the individual brake rods clevis pin to clevis pin, and compare the left to the right..
 
can you turn the adjuster all the way in and lock the wheel? if not you got some major issues in the drum area.
 
can you turn the adjuster all the way in and lock the wheel? if not you got some major issues in the drum area.
Click to expand...

Could be worn shoes, worn (oversize) drum, length of connector rods, sheared pin in the lever/clevis area, even worn cam - although this is less likely. A stuck cam could do it - you bear down on one shoe only and this still not enough to make the drums "self energize" (which they don't on the Model A but you need that "double push" to maximize your brake shoe pressure.)

Joe K
 
I agree there seems to be an issue with the adjuster wedge or the backing plate.

Disconnect the pull rod and see if you can then get the adjuster to lock the wheel. That will give an indication where the problem is.
 
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