2006 SUZUKI SV1000S Engine And Engine Coolingengine Problems

LOUD ABNORMAL KNOCKING SOUND COMING FROM ENGINE WITH CLUTCH LEVER RELEASED. SAME SOUND NEARLY INAUDIBLE WITH CLUTCH LEVER PULLED IN. PRIMARY DRIVE NUT ON CRANKSHAFT THAT SECURES PRIMARY DRIVE GEAR ASSEMBLY LOOSENED AND PARTIALLY UNTHREADED. NUT THEN MAKES WITH CONTACT WITH THE INNER RIGHT HAND ENGINE CASE AND RUBS. THE PRIMARY DRIVE GEAR IS THEN ALLOWED TO SLIDE ON THE CRANKSHAFT OUTWARDS TOWARDS THE CLUTCH ASSEMBLY AND MAKES CONTACT, THE PRIMARY DRIVE GEAR SPRING WASHER IS THEN BROKEN ALLOWING THE PRIMARY DRIVE GEAR ASSEMBLY TO SEPERATE AND LET THE INTERNAL SPRINGS FALL OUT. VARIOUS PIECES OF METAL FRAGMENTS CAN FALL INTO THE OIL SUMP. POSSIBILITY OF CLUTCH DRIVEN GEAR DAMAGE AS WELL AS CAMSHAFT DRIVE GEAR DAMAGE OR ENGINE FAILURE IF LEFT UNCHECKED. PRIMARY DRIVE GEAR SPRINGS AND SPRING WASHERS REPLACED. PRIMARY DRIVE GEAR ASSEMBLY NUT TORQUED TO SPECIFICATION. REMOVE BROKEN PARTS FROM OIL SUMP IF PRESENT. REPLACE CRANKCASE COVER...

I PUT 500 MILES ON MY BIKE OF VERY EASY RIDING THE ENGINE ISN'T BROKEN IN UNTIL 600 MILES AND I PULLED UP TO A STOP LIGHT AND AND THERE WAS A KNOCKING GRINDING NOISE WITH THE CLUTCH OUT AND IT WENT AWAY WHEN I PULLED IT IN. I BROUGHT IT TO THE DEALER AND THEY FOUND THAT THE PRIMARY GEAR NUT HAD BACKED OFF THE CRANKSHAFT AND WAS RUBBING UP AGAINST THE ENGINE CASE. THEY PUT RED LOCTITE ON THE NUT AND RETRORQUED IT AND IT NEEDED A NEW CASE GASKET. THE BIKE IS A 2006 SV1000S. *NM