Helicrazi, the fail indication is simply that Emlube system has decided that it is not working correctly. It has nothing to do with the shaft, they are completely separate systems. In the event of indications of Total Loss of Oil Pressure, the Emlube is activated by the crew using a switch in the cockpit. If it works correctly, there will be no fail indication until the Glycol starts to run out about 30 minutes later. As far as the Emlube system is concerned, it does not matter what caused the loss of oil pressure, whether this is because ( as in these 2 cases) the shaft failed, or you may have a catastrophic oil leak, or 'Sods law' may have happened as you mentioned below.
However, your point about the balance of the MGB running without the big lump of metal welded to the bottom of the main shaft is, I think, important, and something EC needs to address in their testing.
Last edited by PlasticCabDriver; 16th Nov 2012 at 22:14.
Reason: Others answered while I was typing!