I discovered a fuel leak this winter, discovered 10 + gal in the bilge.  I also found a little ice in the racor bowl when removing the plastic bowl.  The O-ring on the bowl didn't look right which could of been the problem. Pursuing the issue I, blocked the return fuel line, tighten the  fuel cap and use the vent hose in a attempted to pressurize the tank to determine if there was a leak.  Pumping the tank up to 4.5 psi,  it didn't hold pressure very long dropping to zero by the next morning.  I've remove the fill hose and vent hose and the 6 mounting screws.  I also pulled the anti-siphon hose up thru the hole at the foreward end of the tank.  I an unable to slide the aft end of the tank out of the compartment because the vent port on the top aft end hits the top of the compartment.  I haven't removed the fuel line from the shut off valve, but I don't see how that will give me more clearance at the aft end of the tank.  Also I don't see a second access port for the fuel level sensor.  I've reviewed Bud Street's 2010 article  but hull 1339 doesn't have the Mk II cockpit.  That cockpit began  after 1339, but at or before 1369.  I bring this up because the MK II hull appears to be taller, possible more head room in the aft cabin. 

John I--