Remagnetizing armatures.

[John Fenner]

I've been at this set of trades for 38 years, build them from ground up from raw material, build, rigging, engines, trailers, all of the likes,,, here is my snafu, been building magnetos as well for about the same period of time,, how in hades do you "re magnetize" a magneto armature?

 

[Slidin Gator]

I've been at this set of trades for 38 years, build them from ground up from raw material, build, rigging, engines, trailers, all of the likes,,, here is my snafu, been building magnetos as well for about the same period of time,, how in hades do you "re magnetize" a magneto armature?

John,

This is where we all miss GMAC76 for sure

Sounds like you are itching for a science project, cause I've never tried it either. Are we talking something like this? It takes permanent magnets or DC coils to magnetize.

https://irp-cdn.multiscreensite.com...gnetisation of magnetos, Sec D-6, Issue 2.pdf

The Magneto Guys - Vintage, Veteran, Classic Magneto Repairs

 

[John Fenner]

John,

This is where we all miss GMAC76 for sure

Sounds like you are itching for a science project, cause I've never tried it either. Are we talking something like this? It takes permanent magnets or DC coils to magnetize.

https://irp-cdn.multiscreensite.com/532006cc/files/uploaded/Remagnetisation of magnetos, Sec D-6, Issue 2.pdf

The Magneto Guys - Vintage, Veteran, Classic Magneto Repairs

View attachment 98212

Appreciate the reply!
I've been thinking "insert smoke from ears here" about starter field coils, build a fixture for them and the armature, add the power to them, after all they run on N/S magnetism.
Got a few to recharge, not even "or barely" feeling the poles lock in to the fields, should throw a thick blue spark by hand rotation to the case but not the ones I have at this time, will update on the "science project" as it happens.
Just another "trade" to add to the list.

 

[Gary S]

you tube has a bunch. I think one guy used old battery charger transformer.

 

[glades cat]

Hey John.
Here is a pretty good write-up on remagnetizing weak magnets. You need a Neodymium magnet, which can be purchased easily.

How to Remagnetize Magnets

Steel or ceramic magnets may lose their magnetic properties after years of improper storing and handling. You can remagnetize a weakened magnet by carefully bringing it into contact with a working neodymium magnet.

sciencing.com