Anybody ever rebuild a water pump?

[Tim Hickey <tjhickey@gatecity.com>]

I seem to be enjoying a very small leak from the shaft of my water pump on
my 73 TR6. Has anybody ever tried to open these pumps up and do any repair
work? I would guess that there is some form of a seal in there, and perhaps
something could be found to replace it. The shaft seems tight, so I suspect
the the bushing is okay. The car has sat 5 years, so I suspect any seal has
hardened up quite a bit. I have not pulled the pump off of the block yet,
this question seemed eaiser.

Thanks
Tim Hickey.