Repairing Flywheels With Magnets

[@billbright1755]

I cut mine in two to fit my unavailable Kawasaki rotor, different diameter, been working great and fully charging system. It runs in hot engine oil. J B weld in place and die grinder sanded to get precise stator clearance. Only magnets I could find and they returned my 82 KLT 250 to service. Thanks for info!

[@imperfectfarm3436]

I just had to do this for a 1978 Craftsman Badger 1 riding lawnmower. Three of the six came off, re-glued them with metal reinforced JB Weld and it worked like a charm. Unfortunately the motor shaft broke when tightening the nut. Ended up welding the flywheel to the shaft, now back to running better then ever.

[@tinker0000]

The arc flywheel magnets are getting rarer to find every day. Each of them has three poles. Three arc shaped magnets are NSN and the other three are SNS. So out of 6 magnets, there are 18 separate poles that face the stator. You can use a compass as well to determine the order to install them. If you find yourself in a jam and are not able to locate new magnets, you can replace them with neodymium bar magnets of the same thickness and height of the flywheel mounting width. Just be sure to glue them in S-N-S-N-S etc. around the flywheel equally spaced apart. The replacement magnets are getting difficult to find, it seems manufacturers have moved to permanently bonded magnets in a steel ring. I guess the cost of producing ceramic magnets in the three pole order is expensive.

[@smurfinguitars]

do they need to be placed at a specific pointon the flywheel such as top dead center?, i have an old tecumseh that uses magnets a charging coil and for the ignition coil

[@HagemeisterEnterprisesINC]

No, they do not need to be in a specific spot on the flywheel. They do however need to be opposing each other and have a slight space between each one so they do not touch, but not too far apart where the magnet forces can’t work together.

[@nathanrice1796]

Interesting video. Lots of small engines have charging systems like that. Wonder if those are neodymium magnets?

[@hawleyj]

There are so many different kinds of Gorilla Glue and JB Weld. Could you tell us the specific types or either or both?

[@HagemeisterEnterprisesINC]

Let me see what I can put together

[@rubirosa4772]

I'm installing nine(9) magnets on a flywheel of of twelve. Only two(2) magnets pull toward the other. I've order new magnets but they are not magnetized. Can i install the two magnets along with the remainder? Thank you. Great video!

[@HagemeisterEnterprisesINC]

Unfortunately, I believe they all need to be magnetized so they work together as a unit.

[@robertlopez3249]

We're can I get those magnets at for my flywheel is can you drop the link

[@HagemeisterEnterprisesINC]

Unfortunately we don’t know. The customer purchased them and we installed them. Wish I could be more help.

[@robertlopez3249]

Man I have been looking everywhere for those magnets thanks anyway

[@welderfixer]

@@HagemeisterEnterprisesINC Seems like your customer could have told you where he got them. If could ask, there's lots of folks who'd like to know. Thanks a million.

[@redneckbryon]

I've seen JB well used but I wouldn't think of using gorilla glue.

[@brianbloom1799]

I don't understand why you would have to charge a set of magnets, That would be the first set of radius Magnets, I have ever seen that was not already magnetized.

[@HagemeisterEnterprisesINC]

Unfortunately they can and do loose magnetism. That is why we have magnetizes in our shop.

[@mafosa9563]

"way cool!"