Originally Posted by rectangular
Interesting! I'll make sure to check that. Is that behind the left side engine case cover? The same side as the stator?
Yeah, balancer chain sprockets are on the stator side.
Pretty typical for certain years on the gasket sealer worms clogging up the screen. 2004 seems to be the worst, worse than your pictures. You now have a solid cause for the engine damage. Go easy on assembly with the gasket making stuff and make sure to clean the screen again after the rebuild.