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Brake Drum Dust Seal

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Athame57:

--- Quote from: K2-K6 on July 04, 2026, 09:41:57 AM ---There's often a "blank" spline area on the spindle to prevent the brake arm being moved incorrectly to another part of the tooth engagement too.

Prevents both wrong assembly position or someone trying to compensate for knackered shoes by moving the arm  :)

--- End quote ---
Yup, I noticed that.  ;)

Bryanj:
Was a common practice to file one spline out of the arm so you could move it round and use up the brakes shoes, brake shoes were expensive!

Athame57:

--- Quote from: Bryanj on July 04, 2026, 03:09:46 PM ---Was a common practice to file one spline out of the arm so you could move it round and use up the brakes shoes, brake shoes were expensive!

--- End quote ---
LOL! The last time I had mine changed the mechanic said I was doing it too soon.  8)

exvalvesetdabbler:

--- Quote from: McCabe-Thiele (Ted) on July 04, 2026, 08:05:50 AM ---As you will have found out as you slide it in place the shaft moves into the hub. I had one of those tools that is like a screwdriver except it's a  pointed tapered end. I was able to push the tapered point into clamp bolt hole and this pulls the shaft out of the hub as the taper meets the bolt recess part of the shaft.

--- End quote ---

That's what I have managed to do, I removed the wear indicator to re plate it and I wasn't going to faf around removing the wheel and hub just to get a finger on the other end of it. A small Phillips screwdriver or length of welding rod will do.

If it's been missing the dust seal it probably wouldn't hurt to remove the shaft , clean and re grease while you are at it.

Regards
Dave

K2-K6:

--- Quote from: Athame57 on July 04, 2026, 04:52:42 PM ---
--- Quote from: Bryanj on July 04, 2026, 03:09:46 PM ---Was a common practice to file one spline out of the arm so you could move it round and use up the brakes shoes, brake shoes were expensive!

--- End quote ---
LOL! The last time I had mine changed the mechanic said I was doing it too soon.  8)

--- End quote ---

They make it with the splines like this exactly to prevent wearing the shoes down far enough such that it would allow the brake cam turn fully square on to the shoes, which risks locking the wheel unintentionally, that being quite dangerous  :o

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