Hi All,
One thing comes to my mind regarding this seal. Do we really need it with the careful use we make of our machines? I for one never go in water or mud.
This week I have removed one brake drum assembly because of a failed brake cilinder and have not seen a seal in the backing plate. There was no dirt or rust in the drum only a lot of brake dust on all parts. Pitty that the absence of the seal does not make the brake dust disappear.
The failed brake cilinder was a very nicely made reproduction but had one flaw. The pull rod was made of two pieces that had a threaded connection (6mm) and a small tig weld. Both broke off cleanly.
Cheers,