It's quite specialist. You know the guy and trust him so that's good enough. He puts his name to your safety so I would imagine he's good at what he does or he'd be called out very quickly.
Aren’t a lot of gearbox casings, particularly on aircraft engines, made with magnesium alloys, albeit well protected by surface coatings with a lot of reprotection options for minor on wing damage. IIRC Mg alloys also have good creep resistance and tensile strength benefits in addition to weight savings over Al alloys, which presumably outweigh the additional maintenance burden.
Have a read of this, http://www.finishlineusa.com/products/specialty-products/anti-seize-assembly-lubricant
Chiz - you're going to have to get a lot more creative with yer words to stop using the missing 'k' so much
im fucing trying my best here dude.. im an .iwi and we have a limited vocabulary at the best of times... yea.. you alright bruce?
My early '79 900SS Bevel came with Speedline magnesium wheels* as standard, they lasted about 18 months/just under 17,000 miles. They had cracks radiating out from every disc bolt hole! *Those original wheels were so bad that they banned Mag' wheels in Australia which was Ducati's largest overseas market at the time. My 2nd set were Campagnolo which were the bees knees in GP racing at the time, they lasted around 2 years/another 20,000+ miles. To be fair they were used in all weathers inc' winter salt etc. After that I swore I'd never fit another pair of Mag' wheels, only relenting recently when I bought a pair of Marvic's for my 851/955, they were the last part of the jigsaw to see the bikes fully wet weight finally get down to 350lbs. I figured that these days (I'm retired) that I'd probably never cover the sort of miles on it that I did all those years ago. Steve R