1HZ oil line

This is more a warrning than a question.
Owners of toyotas 1HZ 4.2 motor 80 and 100 series , check the oil return line from vacuum pump to top of your motor.
It is a hard line 8mm aprox.dia.It is held in place by only one bracket form factory between vac.pump and fuel inj. pump, and it is prone of droping the bracket bolt and cracking the line under prolonged exposure to corrugations and alike. Bloke i know lost all 9 l.of engine oil in 3 minutes. Only luck saved his pocket from major expenditure.Cheers