Originally Posted by CHRIS_D
Is the NSU the Neutral Sensor Unit?
I think I'm getting the fact that the screws (allen or phillips) loosen up and this sensor falls off causing a nightmare. Does it just need some blue loctite and a good tightening or does it need its bolts changed also?
If you remove the stock screws,use contact cleaner to make sure there is no oil residue on the screw threads and those in the engine case they go in to blue loctite will be fine.