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Pictures or a more specific description of how old it generally is based on the styling would be helpful.
"Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."
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Probably a McCulloch Built Motor.
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Tom; many of us are familiar with the motor you have. As stated above; it is likely to have been made by Scott/McCulloch. One way to know is to post the ID number that should be on the motor, see if it has a 574 prefix. 574.xxxxx
They are very good runners; certainly one of the better motors made for Sears. Let’s get more information from you so things will move along and get you on the lake!
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We called them Mac motors. McCulloch motors were built here in Tucson Arizona moons ago. Only back then we used air cooled Mac motors on our go carts & mini bikes, They would FLY!! They had weird diaphram type carbs
You have a well built USA motor!!1 user thanked author for this post.
Growing up, my father bought a brand new 1965 Sears 7.5 hp outboard. White Ted Williams model. It had the 1-1/2” long barbed nipple on the side below the power head. A long rubber hose would push onto the nipple. At the other end was a round cast aluminum disc with a screen on one side. The cast piece, which was a little bit bigger than a hockey puck and pretty heavy for the size, sat on the floor of the boat in the bilge. It would act as a bilge pump constantly sucking any water that would get into the boat. It works only when the motor is running. I just remember the thing vibrating on the floor of the aluminum boat making a racket!
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Tom If you want….e-mail your pictures to me and I will re-size them and post them here. PM me and I will reply with my e-mail address.
The barbed fitting is used for the (infamous) bail-o-matic system. You would hook up a bailer “puck” with a rubber hose. The puck would lay in the boat and “bail” out the water.
Take a good look around that shed…..if you can find the puck….it might be worth more than the outboard.
The 574 number comes back to a 1966 model.
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