Listers,
I've replaced a few rear wheel cylinders and have always wondered about
the 'proper' orientation of the two U-shaped plates that retain the
cylinders. One of the U-shaped plates is flat with a couple notches at
the 'top' of the U--if it was oriented like the letter--and one has a
couple 'tangs' on top that hook into the notches to retain the two
pieces (which are designed to slide against the backplate to enable
'self-energizing' or servo effect). The piece with the tangs is usually
slightly bowed and springy--at least, mine are and I don't think I've
ever bought new--apparently to spring load the two pieces, which
interlock, but it could have been bent during re/assembly.
My question is, does the notched, flat plate go against the brake
backplate, or does the curved piece with the tangs go against the
backplate? It may be that they can only be assembled in place in one
way, and it seems they would function OK either way, but I've always
installed them with the tanged, curved piece against the backplate, as
it seems the cylinder would slide easier that way (I also put a little
grease on the areas--cylinder and backplate--that slide or are slid
against).
TIA,
Bob
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