Home › Forum › Ask A Member › How to best go about putting the flywheel back on an early johnson
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Waunnaboat.
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February 23, 2026 at 9:08 pm #305000
Today I got spark on a Johnson A that I bought a while back and just put a new condenser on, but while I have gotten it to spark with the flywheel just on top and tightened down, I have not been able to get the two flywheel keys to line up when I try to put the flywheel on to actually have it on and functional. Does anybody have any advice on how I should be positioning the two keys so that the flywheel will go on without knocking the keys out first? Prior to this, I have only succeeded in knocking the keys onto the mag plate every time I put it on.
"Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."
February 23, 2026 at 9:57 pm #305001
What I do when the keys are that loose is take a punch and put some dimples in the sides of keys large enough that the hold the keys in the crankshaft.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.
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February 24, 2026 at 8:38 pm #305012Tubs suggestion is about the best one you’ll get, but take the time to make sure the keyways aren’t damaged because those keys usually fit in there pretty snug, so if they’re so loose they fall out when you put the flywheel on, something funny is goin’ on…..
PM T2
He's livin' in his own private Idaho..... I hope to go out quietly in my sleep, like my grand-dad did..... and not screaming, like the passengers in his car...
February 25, 2026 at 8:43 am #305019The flywheel took a good hour of heating and pressure to get off and then I had difficulty getting it off because somehow one of the keys got kinda stuck and the other one did not….so that created a whole mess and I suppose that a very slight amount of material could have gotten shaved off the keys or where they fit into in the process…not so much that it would cause issues but enough that it does not fit very snugly. I suppose there also could be resistance in the flywheel keyway because they will stay in place without falling out before I try to put the flywheel on. I will try the dimple method.
"Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."
February 25, 2026 at 11:46 am #305024if solder sticks give is a brushing to fatten it up
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February 25, 2026 at 4:57 pm #305026It’s not so worn down that solder would do any good…that would make it too large.
"Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."
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