What hasnt happened is the better question.
After eventually getting it rebuilt and it holding. I managed to pull 2 head bolts off.I drilled them out and helicoiled them. One of the helicoils have loosened. This has damaged the gasket. Ive had a look now and it´ll be okay. Just need a new gasket.
The main problem as to why the bottom end in the first place was the oil pump btw. I rebuilt several times and each time they only held a few miles. The oil pressure seemed okay but once I fitted a new pump I seen that the pressure was much much better. Ive now driven it about 500 miles.Some of them fairly hard and its holding strong.Just need to refit a new helicoil and a new head gasket. Ive had nothin but grief from this R. I was an inch away from flogging it for peanuts friday night. Glad I didnt though as once I seen the damage I know I can fix it in about 3 or 4 hours.Just a pain inthe a55 just.