VERY Stuck Flywheel

[Rkymtn57]

1954 Evinrude Fleetwin 7.5

Well I thought my last motor’s flywheel was tough to get off but this thing is NO way !

Ive tried all the tricks / pullers , striking with a hammer , lube , im to the point im afraid to hit it any harder.

Would  anyone care to share any more tips / ideas to remove it.   I havnt tried heat yet .

Thank you ! D

[seakaye12]

With the proliferation of pneumatic and battery electric impact tools….badly stuck flywheels are becoming more common?

To the point where the flywheel is damaged and has to be replaced.

[fleetwin]

What flywheel puller are you using?  The OMC puller and an electric impact would probably do the job…

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Rkymtn57

[Rkymtn57]

Do you have an OMC # for that puller please ?

[Buccaneer]

I bought one like this a few years ago……. saved the day many
of times.
Mine didn’t have the two super long bolts though…… not
sure what application uses those.

https://www.ebay.com/itm/364895647570?_nkw=omc+flywheel+puller&itmmeta=01J6M6V20T2MFV4W4DMZM2VF5B&hash=item54f579b752:g:5FgAAOSwTtllofl0&itmprp=enc%3AAQAJAAAA8HoV3kP08IDx%2BKZ9MfhVJKnviy1Zvn1sYhaPxLjf6tjWLJ8MungYIOosq25pQjkOFAULV0d8Hh5DCrgLfn992J0gY5hnKsO57KpRaqVvUSkhILIfkWNmx3KjXp%2BeUil3qPhSF6k4t3ACsyJKqPxtxUbQ8qVY3BT1k20kv6TYk95bGVWsrQOeamAKbxsd4YSVnfuk%2FuiGuMh4K2oXaemUMYc8GUB3A2y2swkN0DdTlj165L93jujFhtqlqX7FekGCejZJv6urLwP7EKrAhvdIfHaNVIOqzc9EJXdzyW7sSIQmBvR30JdeHzvdqHHjycaSeg%3D%3D%7Ctkp%3ABk9SR76g7Ia1ZA

Prepare to be boarded!

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Rkymtn57

[aquasonic]

If you work on motors frequently this is money well spent. Make sure the shoulder bolts are all fully embedded and flush for even tension or threads in the flywheel can strip. Once tension is applied, some light heat around the hub and upward glancing blows with a rubber mallet can help.

0378103 Flywheel Universal Puller Set – Evinrude & Johnson, OMC | Crowley Marine

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Rkymtn57

[The Boat House]

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Rkymtn57

[Rkymtn57]

Man I cant believe how frozen on this thing is  !    I’ll let it soak for a few days , but……

Has anyone ever had to  cut one off  ?  Im not there yet but im beginning to think about it ?

[dave-bernard]

try hanging pressure while soaking and very tight puller, just enough so it won’t fall if it lets go during the night. 1/4in should do it.

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Rkymtn57

[aquasonic]

Sometimes patience is the most important tool. By carefully applying light heat around the hub followed by penetrating oil and then a cooling period forces of capillarity will help the oil to seep into the keyway and passageway. Multiple heating/oiling/cooling cycles may be needed. Emphasize light heat as you don’t want to damage ignition components or warp anything.

[Author]

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