service several months ago and asked how much the fill adapter assembly should be torqued into the Discovery tube, they recommended about 50 inch pounds.

A.R.

have the valve tube and 'screw' in hand.

Thanks for the torque info. I bet they are concerned with thread stretch/failure.

Walter...

something I can already see that weakens the system.... the heads are not concentric so one can do about 0.020" more bearing than the next two as it works out here.

Now I need to know the Disco hole size????

Walter....