[DavidG]

Chris,

Perhaps it's the angle that the photo of your oil pan in #240 was taken, but it appears that raised part at the back of the pan just forward of where the flywheel is contained is bent into a curve (looking straight down). If so, that should be straight without a curve as it fits up against the cork seal inserted into the groove in the rear main bearing cap to prevent oil from finding its way rearward and out of the pan and onto your building's floor.