Help me identify BILL FISCHERS JOHNSON MOTOR

[KEVIN RINEHIMER]

I am Bill Fischers’ son in law and I’m fixing one of his boats and motor. The model number is unreadable and all I have is a serial number for his Johnson super sea horse 40 hp on the aluminum Starcraft boat. I will attach pictures of the motor and I hope someone can give me a year or model number so I can order parts. I need a fully functional lower unit, impeller and possibly other tune up parts. Any help is appreciated!

Thank you!!

Kevin Rinehimer

Kevinrinehimer@yahoo.com

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[kees]

.
looks like a model
RD-22 from 1960 or
RD-23 from 1961 a.s.o. a.s.o.
😉

[KEVIN RINEHIMER]

Thank you. I can see what looks like RJS-20 or ROS Or RDS. I looked those models up and can only come up with a 1958 which has a different hood and design.

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Attachments:

[kees]

Then it must be a RDS-20 year 1958
but that model has 35 hp ???

[KEVIN RINEHIMER]

That’s why I’m stumped. And it is a long shaft vs the short for those years. There should be an L in the model number for long shaft I believe. Is there anyone you know of that can look up serial numbers to id it?

[outbdnut2]

It was common back then for dealers to convert inventory from short to long shaft and vice versa, so that’s not surprising. The ID plate is from a 1958, 35 Super Sea Horse and the case is 1960 40 HP. Look at the engine block on top behind the flywheel or on the starboard side for a quarter-sized shiny silver welch plug with model and serial stamped on it. It tells you what the engine is, regardless of what the ID plate says. i have a few motors where these numbers don’t match and I’m guilty of swapping powerheads on a couple also to make one good motor out of two. Note the 1958 Super Sea Horse and the 1960 40 HP do not accept the same cover without changing a lot of other parts out, so maybe just the transom clamp assembly was swapped?
Dave

[garry-in-michigan]

According to the serial number list in the Old Outboard Book it was built in 1959 . . . 🙄

[outbdnut2]

My 2nd and 3rd Editions of The Old Outboard Book shows the RDS-20 as a 1958, and the RDS-21 as a 1959, as does Marineengine.com.
Maybe I need to get a newer edition of the book? The 1959 and 1960 would easily interchange covers.
Dave

[kees]

quote outbdnut2:

My 2nd and 3rd Editions of The Old Outboard Book shows the RDS-20 as a 1958, and the RDS-21 as a 1959, as does Marineengine.com.
Maybe I need to get a newer edition of the book? The 1959 and 1960 would easily interchange covers.
Dave

what Garry wrote here was based on the serial nr. only ??
or………..
😎

[KEVIN RINEHIMER]

The silver button on the engine block has the same serial number as the transom mount. No model number stamped anywhere on motor that I can find after looking for quite some time.

[Author]

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