I have an oil leak but not from where I would expect. It is coming from the speedo drive casing which seems to have a mounting point bolted to it. The oil is coming out of the bottom of the mounting. The question is where the hell is it coming from in the first case? All I can see is that underneath the mounting the ought to be an oval sealing plate on the casing itself. Second question if
You can identify the leak is whether the mounting just comes off or is it as I suspect bolted through the speedo drove casing that will come off as well?
Here's a pic to help.