WHAT ABOUT A PROBLEM WITH LINE HONING ,OR BORING MAINS , I WAS PUTTING MY JESEL BELT DRIVE ON AND THEY TALK ABOUT IF IT WAS ALIGN BORED OR HONED ,YOU ARE SUPPOSE TO OPEN UP THE DOLE HOLES ALITTLE AND THEN PUT ON LOWER PULLEY TO CENTER IT IN TIMING SEAL BEFORE TIGHTENING THE COVER UP! THIS ENGINE ( NOT A MOTOR ) MAY NOT HAVE A BELT DRIVE ON IT , BUT WHAT IF ITS SOMETHING LIKE THAT? ALSO WHAT IF THERES PRESSURE IN CRANKCASE??? JUST AN IDEA OR 2.DAVID.