I recently disassembled my saw to replace all of the fuel/oil lines. Upon completion, I noticed excessive crankshaft thrust and a slight rub from the flywheel on the fuel tank. The spring behind the flywheel seems to be in tact, and I cannot remember any bushings/spacers from the flywheel or the clutch. Only the washer behind the clutch. Am I missing any parts or assembly steps.I am an auto mechanic by trade ane have good working knowledge, but my workbench had gotten cleaned by another party during thbis process. Please hek\lp if you can. Thanks, Danny