right bank inlet camshaft,, one of the journels must have had a foreign body get in the oil grrove.. clogged it,, it then ran dry and has damageed the bearing cap and the cam and filled the oil groove with metal :o(
gonna see if can salvage cam and head ( as there are no bearings, the cam runs direct on the aluminium cylinder head and cap)

Hopefully wont have to by new head and cam