I figured out a strategy for dealing with the wallowed out hole in the pump tube.
Turning a 3/16" diameter pilot with a 3/32" shank for a interchangeable piloted counterbore.
The finished (I still had to turn the pip off the end) pilot.
Mounted in the counterbore. The counterbore is 5/16" diameter.
Counterboring the tube and plug with a hand drill.
On the left side I counterbored about 3/16" deep.
On the right side I went 1/4" deep so that the screw which normally holds the pivot pin would enter the counterbored section completely. The brass cut freely. Now to make a new pivot pin.
Wednesday, September 17, 2008
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