when following dedwards advice using plated steel bolts for the breather covers we can increase torque to twice compared to aluminum bolts, hence reducing the possibility of leaks.
see chart: https://www.holo-krome.com/uploads/7...edatachart.pdf
here shows that torque for M5 is 12Nm (about 10 ft-lb) , double the figure advised for aluminum bolts (6Nm)
and no more breaking bolts again.