Home › Forum › Ask A Member › Identify Ruddertwin Powerhead?
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PM T2.
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January 25, 2026 at 11:00 pm #303891

Some pictures of a C I had. It didn’t show signs of being messed with much. But – “A lot can happen over 100 years.” Of coarse the coil wires were rotten and it had a early set of spark plugs. I’m sure it hadn’t been run for decades. Someone had donated it to a museum. They had it laying on a concrete floor, covered with a tarp, in an unheated storage building. No idea how long they might have had it or what it might have look like when they got it. Those that are knowledgeable in these things can certify what is right or wrong with it. I have more pictures. Some when it was apart. If there is something your are looking for I might have a shot of it. This is a link to my first attempt to start it after who knows how long. https://youtu.be/hKX0mZji7aA?si=6PUIH6s-iXIt0R9A

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.
January 26, 2026 at 10:47 am #303895


A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.
January 26, 2026 at 11:16 am #303898Thanks Tubs! Great photos, very informative…..as usual. I really appreciate all that you contribute to this forum. : )
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January 26, 2026 at 11:19 am #303899Great looking restoration Tubs. the polished aluminum goes well with the painted parts. I believe that the tank was the only thing that was really painted but I will have to go outside to look at my motor to determine that, as the color could be either a dull aluminum paint job or just dull aluminum itself. My ruddertwin is in my profile picture but if anybody wants I can send them some more photos via email.
"Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."
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January 26, 2026 at 11:28 am #303900For some reason I think these tanks were plated???? Originally..
http://www.richardsoutboardtools.com
classicomctools@gmail.comJanuary 26, 2026 at 1:33 pm #303904
Great looking restoration Tubs. the polished aluminum goes well with the painted parts. I believe that the tank was the only thing that was really painted but I will have to go outside to look at my motor to determine that, as the color could be either a dull aluminum paint job or just dull aluminum itself. My ruddertwin is in my profile picture but if anybody wants I can send them some more photos via email.
This turned out to be a nice example once I got it cleaned up. There were very few nicks, or scratches, in any of the aluminum parts. I just went over them a couple times with some metal polish and a rag. I can only wonder what the flywheel and gas tank looked like before it went under that tarp. The only thing I had to fix, except for the coil, was the gas cap. The ball inside had become so rusty it was pushing the vent valve shut. While I’m a big Super Elto fan, I’m not of this model. It was great fun making presentable, learning about it, and getting running again, but after I displayed it some, it went into the hands of someone who plans to use it.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.
January 26, 2026 at 1:35 pm #303905
Thanks Tubs! Great photos, very informative…..as usual. I really appreciate all that you contribute to this forum. : )
Thanks David, but I get way more out of logging on here than I give. I recognized your OA-55 gear case in one of Lincolns recent videos. Surprise! I believe that style of pump is unique, as to Cooling for an outboard. Although there could be others, I’ve only seen this gear case on one other model Johnson.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.
January 26, 2026 at 1:39 pm #303906
For some reason I think these tanks were plated???? Originally..
Although most of it was gone on the outside, this tank still had most of its plating on the inside. I believe the cylinder were also plated .
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.
January 26, 2026 at 2:04 pm #303909cylinder was definitely plated and not painted. Nickel? I don’t know a whole lot about plating. The tank could be plated. The outside has what is either plating or paint, and the inside could have been as well, although it could have just been regular steel. The one I bought had been sitting in a well maintained basement since 1969 and had not been touched since then when I bought it last spring. I guess I got lucky, as it was 70 bucks with a stand from that era and started later the same day.
"Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."
January 26, 2026 at 2:07 pm #303910The only reason I think there is a chance of it being painted is that there seems to be very faint brush strokes. Given the fact that the last time my motor was touched was 1969 and the decals are original, I very highly doubt that it is not original, but I don’t know if these strokes were from plating or painting, but plating would seem to be more likely based on the way that it degrades.
"Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."
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