Topic: 1955 Oliver Commander – Antique Outboard Motor Club,Inc

This topic has 12 replies, 9 voices, and was last updated 4 years, 4 months ago by A Hoskins.

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January 4, 2020 at 1:55 pm #190674
kevinrude
Participant
Happy New Year One and All!

I recently picked up a 1955 Oliver Commander and am in the process of giving it the old once-over. The flywheel nut appears to be made of brass and is weirdly shaped leaving me to believe that a specialized tool is required to remove it. Since it is brass, I don’t want to heat it up to remove it. I also don’t want to use pliers or vice grips for the same reason. I also do not possess the special tool.

So, how should I go about getting the flywheel nut off? I was thinking maybe a small strap wrench on the nut with a large strap wrench on the flywheel, but thought someone here might have a better idea.

Thanks!
- This topic was modified 4 years, 4 months ago by kevinrude. Reason: adding photos
January 4, 2020 at 4:06 pm #190693
dave-bernard
Participant
US Member
Got a pic????
January 4, 2020 at 4:42 pm #190709
frankr
Participant
US Member
That sure looks like a Merc nut. Possibly different size though???
January 4, 2020 at 5:05 pm #190710
kevinrude
Participant
Wouldn’t be surprising if it is a Merc nut — ChrisCraft was the first to make the Commander and they only sold their outboard business to Oliver because they were threatened with a lawsuit from Mercury for several patent infringements, or so the story goes…………………..
January 4, 2020 at 6:32 pm #190714
labrador-guy
Participant
US Member - 2 Years
I Kevin, good to hear from you! Do you have any big sockets? My KF7 mercury flywheel nut came right off with a 1 1/4 socket. Maybe mine is weird or something but you could try one on yours.

dale
January 4, 2020 at 6:38 pm #190716
kerry
Participant
US Member
If you have some scrap rubber material, wrap the nut good and use a pipe wrench. I use a piece of serpentine belt, a leftover piece from my homemade strap wrench.

If you have too many, AND not enough, you're a collector.
January 4, 2020 at 7:08 pm #190717
kevinrude
Participant
labrador-guy and kerry: good suggestions both! I’ll letcha know what works. Thanks!
January 4, 2020 at 7:55 pm #190719
dave-bernard
Participant
US Member
Good for taking it off. but make one to torque it on.
flat steel and 4 bolts for pins then weld a nut on top for wrench and torque.
January 4, 2020 at 10:16 pm #190983
kevinrude
Participant
dave-bernard wrote:

Good for taking it off. but make one to torque it on.
flat steel and 4 bolts for pins then weld a nut on top for wrench and torque.

Ah, very good point! I was so wrapped up in figuring out how to get the darn thing off that I forgot that I would need to eventually get it back on again!
January 5, 2020 at 1:25 am #191001
garry-in-michigan
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Lifetime Member
A metric 12 point socket ? ? ?
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