Thanks to the Evil!
When assembling the brake cylinder use the force of the double coiled washers only!
Never tight the nuts to their fixing points!
The cylinder has to be able to move up and downwards the brake plate!
Well, the grommet has seen better days but full filled with grease he will do his very best. I'm hopefully sure.
With the brake shoes on and the drum reinstalled ...
... just use a 7/16" spanner to adjust the brake.
Left hand side hub and brake:
Looking like a nightmare. Old grease, splitted securing washer without any tooth, on the other hand too much tightened nuts to secure them to get off the axle.
The tapered rollers were rolling very hard.
Just like surfin' a skiffel board!
But they seamed to be ok, so far.
But all these parts came apart without any complication!