Replace magnets in flywheel of a Kohler SV 590 engine

S

staninlowerAL

501 Club
Anyone have information on how to replace the magnets in this engine? 3 are broken have come loose. Picture is example of good flywheel with 6 magnets attached. The application is a MTD CC 1000 Series 1042 riding mower. Tks. Stan

SV590 flywheel3.jpg
 
I doubt you can even buy the magnets, separately. I’ve certainly never done it. Maybe gut the magnets and charge coil and mount up a stand alone alternator. Maybe you’ll luck out and find a replacement flywheel, as requested in your other post.
 
Check with your local small engine repair shops. A lot of engines and equipment get left there when the owner finds out that it's going to cost more to fix it than it's worth. Maybe he's got a old engine laying around that he'd part with for little money.
 
ricky racer said:
Check with your local small engine repair shops. A lot of engines and equipment get left there when the owner finds out that it's going to cost more to fix it than it's worth. Maybe he's got a old engine laying around that he'd part with for little money.
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Great idea. My local small engine shops have junk yards with non fixables. Probably have to take the whole or part engine to get the flywheel.
 
Gary Dotson said:
I doubt you can even buy the magnets, separately. I’ve certainly never done it. Maybe gut the magnets and charge coil and mount up a stand alone alternator. Maybe you’ll luck out and find a replacement flywheel, as requested in your other post.
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I'm told that Amazon has them listed for about $40/pair. At that price one could probably purchase a new flywheel.
 
FYI: OK, here's an update. "Borrowed" a good flywheel from a Kohler SV590 (2 years later model made in 2007) and installed it on the SV590 engine made in 2005. It was a different part number by the manual and had a different casting number but visually looked the same. 3 installation attempts using neversieze on the C/S resulted in a sheared key when attempting to start. Some more internet research found technical instructions that the installation should be metal to metal (no lubrication of any kind) on the mating surfaces. Removed and cleaned with brake-clean, reinstalled with a new key and torqued to spec, engine started and ran on first attempt. So the takeaway is don't use neversieze on the flywheel replacement.
 
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