Drop the crank? Oh good!! The oil only seems to drip out when I park on an upward slope so I'm ignoring it for the moment. Perhaps it's not so bad. If I don't think about it perhaps it'll go away?! I've spent 1400GBP in the last month on new rad (punctured by ice while crossing a lake), new custom made stainless 'straight-through' exhaust (original centre box destroyed rock-crawling)(now sounds like V8!), new rear springs (both broken, don't know when, only noticed when fitting new exhaust) so I need a breathing space before ripping out engine / box!