What would be the difference in damage from an oil loss causing the engine to stop and oil over fill. initial inspection from taking the sump off is a bent con rod. The head has not been removed as yet.
Would their be obvious damage shown when the head is removed to the engine to show the car ran with very low oil until it cut out.???Due leaking oil from a pipe under pressure.
if you suspect oil starvation, pull the crank journal opposite the oil pump... will be one of the first places you'll see signs of a warm bearing. id expect to see 'gold' in the sump too as the bearing got hot and started to break up. blueing of big end caps and possibly crank journals would also be a good indicator. it wont necessarily show in the top end as other crank journals may still be creating sufficient oil pressure to lubricate the cam gear.
oil overfill, id expect to see lots in the intake as it's ejected out of the breather. also possible to bend a rod but it'd happen on first start after overfill, not after running it.
bent rods are 'usually' caused by water getting into the cylinder (will stop INSTANTLY) or by bottom end failure (you get maybe a couple of really loud knocks but that would be obvious) sometimes if a valve drops but it usually just smushes the piston into oblivion.
any more info about what happened immediately before cutting out? did you go through a deep puddle(156s & 159s both have quite low intakes so takes less than you would think)? any oil pressure warnings? rattling? knocking?
