Fuel Pump rebuild?

[Calvin Krug <ckrug@laf.cioe.com>]

A while back, I asked about the possibility of rebuilding the fuel pump in
my RBB.  There is a catch, however.  The pump is an AC Delco, not a Lucas.
But it failed anyway. I took the housing off and dumped a rather large
amount of black soot or carbon dust out of it.  Since no other pieces fell
out, I assume that this has something to do with the problem.  Anybody have
experience with these things?

Calvin