Late 36 distributor rebuild - lower bushing

[38 coupe]

Originally Posted by Bored&Stroked

That is correct, but the reamer will never get to it until it reams out the big rear one - so I don't see how it can be used as a center . . . unless some special "adjust in place" reamer is used, or it "slides" down a centering/piloting shaft?

Thinking about this everything needs to center off the large bore in the back of the distributor housing (the aluminum casting). I think the two bushings could be reamed separately (I suspect that is what Ford did when making them new).

The advance housing (the iron part) centers in the large bore in the distributor aluminum casting. The bushing needs to be centered in the advance housing so a simple centering fixture with a straight reamer should work.

A second fixture that centers off the large bore in the distributor housing and fastens to the machined back surface could align a different reamer for the front bushing.

Thoughts?