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1997 Mercury 90 flywheel magnets

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pyrodenis

Member
All 6 of my flywheel magnets are loose and 3 are broken. I'd like to find new magnets and do the repair myself. Anyone know a resource? The flywheel is 261-9007-C3 (probably not original). The i.d. of the flywheel is 192mm (7 19/32") and the i.d. of the magnets is 170mm (6 3/4").
Can anyone guide me?
Thanks,
Denis
 
The flywheel mags on my '92 40hp 4cyl 2 stroke are glued on; don't know what kind of adhesive Merc used; trying to reattach the mags can be problematic as there is very little clearance between the mags and the multiple heads on the stator; I would just get a new flywheel rather than risk destroying the stator - CDI replacements start at around $280. Also, the flywheel and magnets are probably balanced to minimize vibration.
 
thnx all. I bought a used one off ebay. Not worth the misery of getting stranded. While waiting for it, I did glue up what I had and it's producing spec voltage.
 
So, the ebay purchased flywheel doesn't fit. The taper angle seems correct, but a smaller diameter.
I bought a 261-9007-C2 to replace a 261-9007-C3.
On marineengine.com I found that the original was 261-2008A58, replaced by 261-859234T12, replaced by OEM 261-878226T10. (This is using serial# from the freeze plug, as no other serial# can be found.)
I found another on ebay with both 261-9007-C3 and 261-878226A2 stamped on it.
Does anyone know about this taper difference? Thinking I should get this other one.
Thanks,
denis
 
pyrodenis said:
So, the ebay purchased flywheel doesn't fit. The taper angle seems correct, but a smaller diameter.
I bought a 261-9007-C2 to replace a 261-9007-C3.
On marineengine.com I found that the original was 261-2008A58, replaced by 261-859234T12, replaced by OEM 261-878226T10. (This is using serial# from the freeze plug, as no other serial# can be found.)
I found another on ebay with both 261-9007-C3 and 261-878226A2 stamped on it.
Does anyone know about this taper difference? Thinking I should get this other one.
Thanks,
denis
Click to expand...


Were you ever able to find the difference? Mine on a 1995 90hp Mariner is currently a C2 and was shearing the woodruff key...the flywheel actually scraped the top of the engine block...im wondering if it was replaced at some time and might be the cause of some trouble if it were the wrong one.
 
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