Fuel level sender

[ggilliam@usol.com]

A question to the experts:

  I have removed the level sender from my BN 4 fuel tank (actually it's 
a 100 tank, the fill neck inside the trunk, installed somewhere along 
the line) and I hear liquid sloshing around inside the float. Was there 
some sort of ballast fluid put in the float, or do I have a leaky float 
now partially filled with gasoline?
  If it is fuel, any suggestions on safely repairing the float?

 Regards,
 Gordy