Thanks for the comments...
Magnesium is very susceptable to corrosion if its not treated and cleaned properly making the surface very porous (especially in damp or wet climat). The biggest downside is that the magnesium is soft which causes bolts to losen quicker etc (this was a huge issue on the cylinder studs as they all eventually began to pull themselves out of the cases and had to be repaired by installing case savers or timeserts) A lot of folks dont loctite all the nuts and bolts during reassembly either which will cause them to slowly losen off over time - The key is loctite and proper toque, and you shouldnt have any issues with leaks. We used a Gel based Anaerobic sealant which remains quite rubbery and adhers very well to the case flanges (again prepping/cleaning the flanges is also very important prior to re-assembly). Another important thing I find is during assembly.. o-rings.... always lube them slightly with an assembly lube which will cause them to slide into place easier and avoid binding or nicks in the rubber during assembly... All these things added together and you should be ok.
But in the end they will all leak at some point in time, all we can do is try to prolong the process
H
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