Anybody have any experience with the crankshaft keyway shearing? While driving this a.m. on my way to get an inspection sticker(great timing) my 745T died while under spirited acceleration. I could peek into the t-belt cover enough to see that the belt was not turning when the starter was cranked. I was thinking that the belt may have lost a few cogs down on the crank pulley but when I tried late this p.m. to turn the cam pulley bolt with a wrench everything turned fine so it appears that the t-belt is intact. However, the accesory belts do not turn while spinning the cam bolt and if I turn the accessory belts by hand they all turn but the t-belt doesn't. I am guessing the keyway has broken/sheared/disintegrated. It's too cold and dark right now to dissasemble any further. Anyone have any similar experiences?

Dan

p.s. the t-belt only has about 15k on it