Magneto

[kat-a-tonik]

I have a 1966 25 hp evenrude, one of the magnetos is bent slightly in one corner, is this a problem or will the motor still operate ok

 

[racerone]

???-----1966 model 25 HP---------Do you have a model #

 

[kat-a-tonik]

No Title

My bad its not a 25hp its a 20hp model FD 20C, is this still usable, it has good fire

 

[F_R]

That damage is from the coil laminations rubbing on the flywheel magnets. That happens when the coil wasn't installed correctly. The laminations are supposed to be flush with the machined edge below it.
Yours may work ok after adjusting, But the individual laminated plates are shorted together, compromising their efficiency. They are supposed to be insulated from each other to prevent eddy currents. There's something for you to do in your spare time---Google magnetic eddy currents and transformers.

 

[kat-a-tonik]

It was caused by the flywheel but only when it sheared the key

 

[kat-a-tonik]

my guess is I would be better off replacing the coil

 

[kat-a-tonik]

Thanks everyone, I have several extra coils I will replace it