This is all news to me.I only found out about the pin a couple of months ago.(Just after I replaced the camshaft on the r80) Should I have looked to it? What would be the indicators of a lost pin, other than in the oil pan? If the main brg. does move, loss of oil to heads ? Would there be any warning ? That could be a tough find if your top end started chattering 1000 km. from home.Preventative help ?.Tks.