Brake Shoe Roller Pin

D

Dave N.

Junior Member
Does the Brake Shoes Roller Pin fit in the Brake shoe hole snug or
should it be loose enough to rotate.


This pin has the brake shoe rollers on it and the rollers spin
but the pin will not rotate that goes threw the hole in the shoe.

If the pin will not rotate, wont it ware a flat spot on one area of the pin
when it slides on the front brake roller track?

Thank you
 
Just lightly grease all moving parts. Leave your drum off and work the brake lever and see if everything moves smoothly.
 
On the brakes I rebuilt the pin rotates in the shoe. I used a light coating of high temperature grease. Too much grease will end up on the shoes, which is bad.
 
per the original drawings the roller pin is supposed to be a slight press fit into the brake shoe. The the pin has too much slop in the brake shoe that will allow the brake shoe to **** a bit and that can happen while driving down the road. Don't ask how i know about that.
 
I had problems with the left front brake not releasing after a new brake job. When the car was stopped and foot off the pedal. Right side was OK it released. I found the one roller pin on the left stuck in the shoe and would not turn, bored out the hole in the shoe and brakes now release. I also lightly greased the pin when I assembled the brake shoe.
 
Jeff is correct, this is an area where many Model-A brake restorers over-look, ...and I have found many original Model-A shoes are not good candidates for use as rebuildable cores because the shoe is no longer centered on the drum when the roller pin cannot hold a fixed position.
 
Herb Concord Ca said:
I had problems with the left front brake not releasing after a new brake job. When the car was stopped and foot off the pedal. Right side was OK it released. I found the one roller pin on the left stuck in the shoe and would not turn, bored out the hole in the shoe and brakes now release. I also lightly greased the pin when I assembled the brake shoe.
Click to expand...


Herb, I believe your problem was actually the rollers and not the pin. The A-2023 Roller print shows the hole diameter to be reamed to 0.4380" (compared to a 0.4375 pin) which should make them rotate freely as the Brake Operating Wedge is forcing the shoe outward. To retract the shoe, the spring needs to do its' job of dragging the roller pin across the A-2017 Shoe Centering Bracket. There should not be any downward pressure onto the pin from the shoe, so wear is minimal however it is still a wearable item. Also, remember that the Brake Centering Plate is what also wears. Generally we find wear on the Centering Plate (a/k/a; brake tracks) because the pin is not supposed to rotate and over time it rubs away the metal as it is being actuated.
 
Hi Brent, thanks for your reply. I should give you and other readers the complete story.
I did a completely new brake job. New Cast iron drums and shoes from Randy Gross. Flathead Ted's kit was installed along with new rollers and pins. This work was done with a fellow club member who has done dozens of brake rebuilds like above. The flathead Ted's hourglass shaped plate used in the front was modified so it would not catch on the brake shoes. Everything worked fine except the left front brake would be left engaged after a stop. The Right front always released. The rest you know. Thanks for listening.
 
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