Need Hydro Help!

[Gross Scruggs <GScruggs@wposmtp.nps.navy.mil>]

I am in need of experience and wisdom from the list.  My '87 5kTQ, 78kmi,
acquired only three weeks ago, has among other problems the 'annoying' habit of
pushing substantial amounts of hydro fluid out the top of the resevoir.  I've
just replaced the cap/spring/float/gasket/switch assembly and it continues to
blow fluid out until just below the 'low' mark, thereby setting off the bells
and lights of the diagnostic system.  I know my hydraulic accumulator needs
replacing and the pump needs rebuilding.  Is this resevoir problem separate or
associated, and what is happening?  

'Freshly oiled driveway in Monterey',  Gross