Show simple plan to replace a coupling and magneto A simple wily ay of replacing a coupling and magneto when the taper Is worn la Is to true up the taper by using the compound rest on a lathe not by moving the ho tall stock set the compound rest so eo that it will turn the lie new taper as shown in tile the illustration ac L wit me E 0 COMPOUND reat L T IVIC fat the taper on a magneto coupling may be easily trued up by setting it in a lathe after the taper has been turned on the magneto shaft do not move the compound rest but leave it at that setting put on the chuck and turn up a new flange coupling finishing it all but the taper then turn the boring tool upside down aud and run the lathe tile tho same way as before the tool cutting at the back instead of offee the front the taper must be the same and the coupling will then fit perfectly popular science monthly |