Welcome aboard, Derek! You wrote about issues with the Jubilee derailleur:
DEREK: 1) I've removed and rebuilt the tension pulley of my Huret Jubilee rear, but am nervous about the jockey wheel. The screw holding it into the cage is quite tight and it is not clear whether the same screw also holds the wheel-side cage piece in place. I am concerned that removing the screw will release both the cage and the tensioning spring. I don't want to screw it up through lack of knowledge. So if there is anyone that can advise me on Jubilee maintenance, I would be most appreciative.
HARVEY: It's pretty simple to open up the top pulley. First, you back off the deep-set, dome-topped 8 mm. nut at the other end, which looks decorative but is actually a real lock-nut. Then the screw turns easily. The trick, if I recall correctly, is to adjust the jockey wheel's bearing cones while reassebling it.
harvey sachs
mcLean va