The 183 meter long, 37106 dwt tanker Elbtank Italy became disabled on the Kiel Canal near Fischerhutte, Germany.   The tanker had suffered rudder failure and allied into the pilings along the southern bank sinking three and damaging another four.   The Elbtank Italy proceeded to Kiel where it awaits inspection.   The tanker was scheduled to sail from Rotterdam to St. Petersburg, Russia.  No reports of injuries or pollution being released.