Help identifying model and year – Johnson 10 hp

[63lstrition]

Great video. That did run sweet! Hopefully I have good luck with getting mine to run and idle that well.

[fisherman6]

Thanks! And definitely good luck with yours! This is a great place to come for help if you should run into any trouble along the way. 🙂
-Ben

OldJohnnyRude on YouTube

[Steve D]

quote 63LSTriton:

Thanks guys! For future projects, where did you find the reference for the serial numbers?

Here you go, someone else posted this at one time. Would like to get the numbers after this one if anyone has them.

[garry-in-michigan]

Johnson serial numbers are listed through 1961 in Peter Hunn’s "The Old Outboard Book" . . . 🙂

[jerry-ahrens]

Garry, I’d love to learn more about the oil injected V4 motors that are mentioned at the bottom of the serial # list… I don’t want to hijack this thread though.. maybe you could start a new one ? I have heard of these motors and wondered if any pictures have survived ?
It amazes me how many times I see ”new technology” on modern outboards and think ”hey, they used that way back when on such and such a motor”. Anything from replaceable prop hubs to the dual line pressure fuel system, the same basic idea used on a
Merc V6 oil injection system. Pretty cool when you think about it.

[garry-in-michigan]

The oil injection system survived and was used in the V-4 engine in the "Sweet Sixteen" fiberglas boats OMC produced. Many auto companies were working on fuel injection in the mid 1950. I owned a fully injected VW Square Bace in later years. As they aged, the 90 PSI carried in the fuel lines caused many fires as age caused leaks where they were subject to heat & vibration.

It was long known that much fuel was waisted on two cycle outboards because of having the bypass port and the exhaust port open at the same time. GM’s two cycle diesels proved fuel injection could make them efficient. I will work up a report for our members on the Dockside Chat. Perhaps it should go toward an Antique Outboarder article. . . 🙂

[Author]

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