grinding in mag

~Basically if the grinding is actually coming from the mag it could be a dry bushing or sticking impulse dogs. Or even a build up of crud on the cap terminals that the spark rotor is contacting.. It could even be the internal magnetic rotor contacting the coil laminations due to rust.. If it has a gear reduction mag it could even be gear noise or dried out grease..

~If it just sounds like the mag [or in the mag area] it could easily be a dry R/H governor bearing or the bearing spinning in the governor case [common if the tractor has at a while & all the oil has run out of the bearing area].

~Even internal governor gear noises like fan gear noise can telegraph out to the mag area & sound like it�s coming from the mag..

~Use a mechanics stethoscope, or piece of hose, or even a long handled screw driver & listen to the governor & mag, maybe you can pinpoint the exact noise producing area..

~As John suggested, maybe just adding a little oil in the mag oil holes will stop your grinding..

~Listen to it a little closer & let us know what tractor & mag you are working with & maybe we can help you pinpoint your noise a little closer�.

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Remove the cap and clean and dry out any mud dawbers dirt and oil or dust etc. that can get built up, check the points gap and condition, clean and lube the rotor shaft with that regular cam lube, lube any external oilers, and see what happens. What mag you have???

Good Luck n God Bless

John T