I had my 948 a year or so ago, the oil pump cover was welded on in some
fashion on it too: brazed, soldered, welded, I don't know. I did have a
problem with the pin drive oil pump (all stock stuff) that I got from an
incredibly reliable source, and had Peter (oops) scratching his head as I had
to file off bits of the pump to fit the rear cover. Just a heads up on the
possiblity of a fitment problem.
There are quite a few bolts holding the rear plate on, keep that in mind. I'd
go for the middle-of-the-road Grade 5's myself, my 2 pence.
Dan G
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