Reply To: Evinrude 38 spl

[Don]

I’m glad I misunderstood! I’m sure it would be possible to add some sort of ring to the pilot bushing, but it would be awful tough/expensive to machine the surface down so some sort of ring could be added. Chances are the brass bushing in the mag plate is worn also, so the mag plate would have to be replaced also. I’m thinking that a new mag plate and plastic bushing will take care of this situation pretty well…
When I spoke of “shimming”, I was referring to positioning the electrical components on the mag plate. The electrical components can be adjusted in and out just slightly on the mag plate to achieve the proper air gap between the laminations (and sensor pickup) and flywheel magnets. There is a special ring 315001 that is used to set these gaps properly. positioning a .005″ feeler gage between the laminations and coil ring tool sets them back just slightly. This is usually enough to compensate for pilot bushing/bushing wear without affecting electrical outputs.
In any event, a new plastic bushing, properly lubricated usually helps out a great deal also…