Got a problem with my car...Its leaking oil (a fair bit, like a almost consistant drop) from between the gearbox and the block. (new motor, compelete rebuild with new seals, internals, etc)
Now, on the following image:

What is the bung circled in red? Is it oil gallery or water jacket....
I think it's oil, and I hope like hell its oil, because then I would guess thats my leaky point... If not then that leaves the rear main seal..
And the reason im asking is I havn't got time to rip the gearbox off in the next couple of days, and I would like to put my mind to rest about it

Thanks,
--Sykotic