Paul1987, if the dealer you're working with went to the Morgan factory last week they should return knowing exactly the root cause of your oil leak. The only question is if this dealer will be willing address the real issue correctly.
The rear main oil seal opens to the transmission bell housing so the hole there is where the leaking oil first sees daylight; it's not where the leak originates. Plugging this hole is so incompetent it would shock me if it were not coming from a Morgan dealer. Plugging this hole will just cause the leaking oil to pool and eventually foul your Centa rubbers and then the clutch.
Please let us know what your dealer says next...
3G,
Just so we all keep the same terminology, the part that has the hole in it is referred to by MMC as the Centre Drive Bell (Part #2). See the red arrow below. This Centre Drive Bell bolts directly to the rear of the S&S motor.
The transmission bell housing is behind that and the Flywheel Mounting plate (Part #4). There is no round hole on the bottom of the transmission bell housing.
No need to confuse matters.
