390 Oil Leak Blues
I have a 71 F100 with a 390. The motor was rebuilt about 5k ago, and not long after started leaking oil from the back of the motor, most prevelant on the passenger side. I figured it was a rear main seal problem. I replaced it twice with no effect. Both times with neoprene seal. I inspected the crank, it was in good shape with ////// marks. I thought about the intake causing the leak, so redid it with no effect on the leak. Any ideas where my problem is? Could it be the camshaft/oil gallery plugs or am I way off on that? If so, would the flylwheel be covered in oil, cause its not? Some say I should live with it, but I don't like to see puddles under my truck or tons of oil grease underneath. I appreciate any ideas.