Home › Forum › Ask A Member › New to me Rudder Twin J
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Tubs.
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March 18, 2026 at 10:28 pm #310372
Hi Everyone,
I finally found a decent Rudder Twin at a decent price!!! I’m very stoked about it!
I have never owned a Rudder Twin before and I don’t know much about them other than the fact that it’s now officially the coolest outboard I own!
The guy I bought it from said that it was owned by a member on here…a guy named Bill Bynum. Bill, if you read this, please reach out to me! I’d love to make your acquaintance!
I do have a few questions….
- These engines run CCW…..correct? If so, it looks like the propeller is going the wrong way. What am I missing here? Is it possible that the wrong prop is on it?
- I posted a picture of the rear of the engine. If you rotate the flywheel CCW, the propeller spins CW when viewing from the rear, which, looking at the propeller, seems to be reverse.
- I know I am getting way ahead of myself here…..but what should the tank look like when restored? Painted or polished? The tank has starting and oiling instructions on it that are in very good shape–VERY COOL!!!
Thanks everyone!
–Rob
Can’t wait to hear this thing run! But I am going to take it very slow so I don’t break something on this 100 year old engine!
Rob
March 18, 2026 at 10:35 pm #310377Sorry….2 more things…..
The serial number is J 46215 which I believe makes it a 1927….correct?
Also, there are some little ‘eyelets’ on the tank (see attached picture, ‘eyelets’ circled in red). What are those for?
Thanks again!
–Rob
Rob
March 19, 2026 at 4:43 am #310425Good morning. The motor spins in a clockwise direction, these Eltos use a LH rotation propeller.
It is a 1927 motor, as ’27 was the first year for the J (they did offer them in 1928 as well)
The gas tanks on those were provided from the factory with a finish known as “Terne plating”, which is a lead-tin alloy that is no longer used. Some folks have nickel or even chrome plated those tanks. I strongly recommend against that. Not only is plating them expensive, but it will show up every flaw, dent, or wrinkle that you didn’t notice before it was plated. Common practice now when redoing a motor is to paint them silver.
The eyelets are for control cables or cords that allow the timing to be adjusted from a remote area of the boat. YOu could run a control cord thru each eyelet and tie the ends to the timer, as there is a hole in the timer handle for just that purpose. Coupled with the rope steering, this gave the operator a choice of sitting further away from the motor itself, thereby enjoying a quieter ride and possibly getting out of the smoke trail. Fortunately, these Elto motors typically run well enough to allow a boater to sit further away from the transom and not have to sit next to it to make constant adjustments.
Hope this helps.
Best,
PM T2 (Elto Special Interest Group Leader, AOMCI)




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...
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March 19, 2026 at 9:50 am #310466
They will actually run in both directions. Here is a link to starting mine. https://youtu.be/hKX0mZji7aA To run forward, you spin the flywheel counterclockwise. If you have the everything set properly, the sparkplugs fire and the motor takes off, running clockwise. Do the reverse, and it will run in reverse. Once you get familiar with your motor you’ll see how well this works. Too many links can make a post disappear. If you search for the videos below it will give you some understanding of how the timer works.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.
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March 19, 2026 at 12:40 pm #310491I’ve got one, I gently media blasted past the surface rust, and exposed most of the original plating underneath. I now am waiting on parts to do a military coil swap!
"Shells sink, dreams float. Life's good on our boat."
1949 Mercury KE-4
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1952 Mercury KG-7Q1937 Evinrude Scout
1938 Elto Pal
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March 19, 2026 at 2:48 pm #310511
They will actually run in both directions. Here is a link to starting mine. https://youtu.be/hKX0mZji7aA To run forward, you spin the flywheel counterclockwise. If you have the everything set properly, the sparkplugs fire and the motor takes off, running clockwise. Do the reverse, and it will run in reverse. Once you get familiar with your motor you’ll see how well this works. Too many links can make a post disappear. If you search for the videos below it will give you some understanding of how the timer works.
Thanks Tubs! I am definitely going to have to circle back to you when I have more time to tinker with this one. I think this is the coolest antique outboard I will ever own….because I will never be able to afford a Clarke Troller haha 🙂
Rob
March 19, 2026 at 2:52 pm #310514I’ve got one, I gently media blasted past the surface rust, and exposed most of the original plating underneath. I now am waiting on parts to do a military coil swap!
Thanks for the advice!
So far, for my restorations, I have been removing paint the old fashioned way–with sandpaper and elbow grease. I’d love to get a media blaster someday, but they take up a lot of room and a decent compressor costs a ton of money, that I don’t have.
Please keep me posted on your project! I’d love to see some pictures! Also, I might need to ask you some questions about the military coil swap. I have a coil, and I’ve watched Tubs’ video, but I still have some questions before I dive into that side of this project.
Thanks again!
–Rob
Rob
March 19, 2026 at 2:55 pm #310516Good morning. The motor spins in a clockwise direction, these Eltos use a LH rotation propeller.
It is a 1927 motor, as ’27 was the first year for the J (they did offer them in 1928 as well)
The gas tanks on those were provided from the factory with a finish known as “Terne plating”, which is a lead-tin alloy that is no longer used. Some folks have nickel or even chrome plated those tanks. I strongly recommend against that. Not only is plating them expensive, but it will show up every flaw, dent, or wrinkle that you didn’t notice before it was plated. Common practice now when redoing a motor is to paint them silver.
The eyelets are for control cables or cords that allow the timing to be adjusted from a remote area of the boat. YOu could run a control cord thru each eyelet and tie the ends to the timer, as there is a hole in the timer handle for just that purpose. Coupled with the rope steering, this gave the operator a choice of sitting further away from the motor itself, thereby enjoying a quieter ride and possibly getting out of the smoke trail. Fortunately, these Elto motors typically run well enough to allow a boater to sit further away from the transom and not have to sit next to it to make constant adjustments.
Hope this helps.
Best,
PM T2 (Elto Special Interest Group Leader, AOMCI)




Great info! Thanks!
Just to be clear, when I do get to the point that I am ready to try to start it, I should ‘bump’ the flywheel back and forth off the compression a few times, and then flick it firmly CLOCKWISE? Is that correct?
Great pictures, by the way!
Thanks again!
—Rob
Rob
March 19, 2026 at 9:54 pm #310605Starting instructions for your motor are included in the attached scan.
Best,
PM T2He'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...
1 user thanked author for this post.
March 19, 2026 at 10:49 pm #310615 - These engines run CCW…..correct? If so, it looks like the propeller is going the wrong way. What am I missing here? Is it possible that the wrong prop is on it?
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