Chainsaw flywheel switching polarity of magnets?

[dynodave]

On the Briggs mount the coil upside down.
Kash

I will assume you mean front to back instead of upside down. It won't mount otherwise. The coil armature must still face the flywheel.
The early engines are N-S-N and late are S-N-S.
I'll offer this to the Simple tractor forum as this advice has never been offered in the many years I have been a member. The factory no longer regausses/repolarizes flywheel for the public. I will end up makeing my own B&S flywheel gausser armature and do them my self. I have/own several engines to do.

 

[Bob_w]

Saw a video last night of someone “referencing “ another video about someone removing a flywheel the tooless way, hammering it off with a hammer and punch. Said it somehow reversed the polarity of the magnets.
Can this actually happen? Believe this was a saw that had points if that makes a difference. Thanks

Wow, sounds impossible. Maybe he just came back from a snipe hunt, while camping.

 

[Bob_w]

Wow, sounds impossible. Maybe he just came back from a snipe hunt, while camping.

Yep we used to take flywheels of with a plastic hammer, doesn't sound good for the bearings. In the lab we did not apply 24 Ft Lb. I just drilled new 1/4 in holes in one of my pullers for the 5mm screws on the MS391 and pulled the flywheel.

 

[Maine choppa]

To answer the op. Yes..magnets can be destroyed by being hit or with heat. Either method disorients the magnetic lines of flux that creates the magnetism.

 

[HarleyT]

Hitting the flywheel helps me sell flywheels.