hi Mike
are you talking about the around the case nuts and washers?If yes there should not be an aluminium washer but steel washer.
No silicon type nut either.
Steel washer and steel lock nut type nut...
on this locations...
this nut with the washer torgue as you know now 25 nm...
http://cdn1.pelicanparts.com/catalog/images/SuperStock/900-910-022-02-OEM.jpg
Ivan
here is a detail of an engine i am doing now..with the correct nuts
here are the correct washers
