Here's the kicker! PUNT! The rubber freeze plug tightener was rubbing the flywheel. Thus causing the the zzzzzzzzzzzzzzz noise. Cant use a rubber plug at the back of the engine. It was getting dark and I missed it. Wrong recommendation too. I ordered the plug #4 here on marine engine. (D841459) Engine Ser#. It wont fit. Dial caliper puts it at roughly 2". Because plug area is rough. Even after a light wire wheel. Should I have ordered the #2 part with a 2" diameter? NEVER use a rubber plug back there!

