1964 Evinrude 75hp, starter maintenance

[Evinrude Boater]

The starter was making noise and didn't seem to be turning the engine over as fast as it used to. I pulled the starter apart and it has a bushing at either end. I couldn't detect any play but there is play vertically. The armature can move 1/8th inch up and down. There's only one washer on the bottom and two on the top. Should this be tighter?
This starter only has a small drive gear on top so I guess the flywheel drive gear should be looked at as well.

 

[Andre]

Re: 1964 Evinrude 75hp, starter maintenance

This is only a suggestion. The brushs that make contact to the armiture may need a bit of cleaning. Also, check that the brushs are still good and don't need replacing. If they are almost worn out it could be your problem. You can always send it out for a rebuild if you're not sure what to do.

Andre

 

[Evinrude Boater]

Re: 1964 Evinrude 75hp, starter maintenance

Thanks Andre, the brushes are about 1/4 inch remaining. My manual indicates to replace at 3/8 inch so I guess they are due to be replaced. They look simple enough to replace. There was lots of dust in the bottom cap, likely the brushes.

 

[F_R]

Re: 1964 Evinrude 75hp, starter maintenance

There are fiber shim washers to take up the end play. Yours must be disintegrated.

 

[Evinrude Boater]

Re: 1964 Evinrude 75hp, starter maintenance

Now that you mention it, I did find a semicircle of fiber in the bottom cover. That would be it. Do you think that would cause the vibration sound?

 

[Chris1956]

Re: 1964 Evinrude 75hp, starter maintenance

If that is a reduction starter, then grease all four bushings, and the drive gear. Clean up the commutator, and check for any shorts.

 

[Evinrude Boater]

Re: 1964 Evinrude 75hp, starter maintenance

Yup, that's what I did. Didn't check for shorts though. It seems to work better though. Time for a rebuild this fall.