[olddog]

I just found the second bolt in from the ends, on all four corners, do not turn free. These are the ones where the head has on open spot milled into it. These bolts only turn down three turns freely, then lock up tighter than I can turn with a nut driver. This definately did not allow accurate torque on the end where the RTV was. No doubt this added to the thicknes of the RTV.

I tapped them, but only gain a turn. I'll have to get a bottom tap tomorrow. Since these are heli coiled, are there any special precautions needed?