Grinding/filing roller tracks

[pooch]

OK, another question.

In a perfect world, with new shoes, new rollers and new pins, how much clearance should there be between roller and shoe.

I think mine must have some play and rollers maybe jamming on shoe.

I have just left rear backing plate/shoes on and only one inside lower roller turning.

Is the head of the pin supposed to turn as well to roll across track or does it skid?

I see on this left rear, the lower rollers/pin is being pushed clockwise which is right if it all turns together, but......

The upper rollers are being pushed clockwise too, and the pin on track should move anti clockwise to roll on track.


So, should I see the top rollers move clockwise and the pin move anti clockwise, or is this asking too much of the design?

 

[Jim Parker Toronto]

The backing plates are the same, the actuators are the same, the only real difference is in the levers. The yoke is twisted and should point to the center of the car when installed. The beveled edge of the lever goes on the inside, and should have a wire loop around it. Could be replaced with a rubber O-ring.....

 

[pooch]

Hmmm this sounds too easy.

Your brake camshaft housing, grease fitting, should point down.

Just checked, the grease fitting either can point forward or back, not up or down.

Mine are facing back, probably wrong.