The Ford Barn

alexiskai · 03-22-2021, 10:41 PM

I think P.S.'s procedure is an attempt to get decent brake performance out of cars with a wide range of actual brake components without taking the brakes apart. Adjusting the rod lengths compensates for the different wear levels on the individual brakes. The point is to equalize the braking force from each wheel and roughly calibrate it. In contrast, the official procedure – such as the directive to set the rod lengths so they align with the levers at 15° forward – is designed to maximize the braking force by optimizing the physics.

The official procedure assumes that your brake shoes, operating wedges, levers, etc., are all within official tolerances. Shinn's procedure is designed to be used at club events with random cars showing up. You can't stop and replace any parts at these events, you're just trying to get the best performance possible under the circumstances. It's a fine procedure for that scenario, but I agree that I wouldn't use it when overhauling my own brakes in my own garage.

03-22-2021, 10:41 PM	#13
alexiskai Senior Member Join Date: Apr 2018 Location: Mebane NC Posts: 2,845	Re: Comprehesive howto for brakes? I think P.S.'s procedure is an attempt to get decent brake performance out of cars with a wide range of actual brake components without taking the brakes apart. Adjusting the rod lengths compensates for the different wear levels on the individual brakes. The point is to equalize the braking force from each wheel and roughly calibrate it. In contrast, the official procedure – such as the directive to set the rod lengths so they align with the levers at 15° forward – is designed to maximize the braking force by optimizing the physics. The official procedure assumes that your brake shoes, operating wedges, levers, etc., are all within official tolerances. Shinn's procedure is designed to be used at club events with random cars showing up. You can't stop and replace any parts at these events, you're just trying to get the best performance possible under the circumstances. It's a fine procedure for that scenario, but I agree that I wouldn't use it when overhauling my own brakes in my own garage.