One of the bolts holding the oil pump. Wow, what an uncomfortable place to work in.
But I hope these left-handed drill bits(ie the 1/8th inch one is the only suitable one I bought) next weekend will do the trick.
I tired several other methods to no avail. That be some hard steel.
I shall never use a torque wrench as a regular one. 15 lbs/foot seems to be no more the bolts can take, even though the torque spec says 20.