I have the back plate off my 4.6 AE (AKA .28 Pro) engine and giving it a good cleaning. I put WD40 in the crankcase from the open back plate end and it started to drip out the other side at the crankshaft/flywheel area. I take it that this means my bearings are bad or something as this would suggest no matter how well I seal the backplate I will have an air leak from the flywheel end.

Does everyone agree?