Brake pedal won't return

[Jack Eslick]

I recently purchase an 8n. The brake pedal for the right brake was lower than the left pedal and the brake was dragging. Removed the tire and drum and replaced the brake springs, but this didn't help. Next replaced the backing plate and brake shoes and all the seals and gaskets. The brake pedal worked OK until the hub nut was tighten. Figured it must be the brake drum, so I had it turned, but no success. Ordered a new hub and drum. The pedal is still exactly as it was when everything is tightened. The linkage does not appear to be binding.

Having replaced every part without any progress is frustrating to say the least. Any suggestions?

 

[Cutty]

well i'm no expert but since no one else has responded i'll give my thoughts, hub splines worn so when you tightened the hub nut it pushed the drum in too far and is binding the brake shoes?? second thought...did you grease the brake pedal?? thats all I got. Anybody else?

 

[Jack Eslick]

The last two parts I replaced were the hub and the drum. I cleaned the brake rod and bushing and lube with white grease. The axle "looks" OK, but could it be the axle?

 

[Bruce (VA)]

Does the axle extend past the hub, like in the picture? If so, and the hub is new, your axle is bad. The other pic is the right brake as FYI.

50 Tips

 

[trac]

OK i think cutty is on to something, works when axle nut is loose.Brakes might be binding on drum did you replace gasket that slides over axle than the hub goes in and on axle? It's flat about 1/2 inch wide and round. If it's new the hub won't rub on the brakes.

 

[Jack Eslick]

I rechecked and new hub and drum. When the axle nut is torqued, 1/16 to 1/8 inch of the axle splines extend past the end of the hub splines. With the new parts (or better observation ?), the problem does not occur until the drum is tight. The drum slides on easily until about the last 1/8 inch and the brake works fine. When the screws or lugs nuts are installed and tightened to bring the drum tight on the hub, the brakes lock on. At first, thought it was a lip in the brake drum, so I had it turned which didn't help. After this, I installed a new hub and drum. As previously, stated all other brake parts were replaced. The problem is the same as it was it the beginning.

When the drum is tight, the back brake cover plate is not straight with the brake drum. I don't think this is the problem, but then again I really don't know what to think.

I appreciate the suggestions so far and hate to ask, but can anyone think of any thing else to try?

 

[nobo]

what about wheel bearing

 

[Bruce (VA)]

I think he'd be telling us it was making noise........

 

[R Geiger]

The shaft splines should not extend past the hub. If they do the shaft needs to be replaced,