Working on a ’25 Roadster.
I’ve installed new two-piece brake shoes. I had to grind a small amount of material off the shoes where they contact the cams to get the hub on. It’s tight, but the wheels turn. The problem is the shoes are so tight against the cam that any movement of the brake lever – forward or backward from vertical – engages the brakes. Am I missing something? Should I grind off more brake shoe at the cam contact point?
Give that a try, especially if they are repros.
I've never had that problem with the old stock lined shoes, but you didn't mention if they are lined. If they are, a brake shop can arc them for you.
The only problem I had was when installing Rocky Mountain brakes with the large drum and also the small drum inside it. The outside edge of the shoes rubbed on the small drum.