EVINRUDE Detachable lightweight sport model

[2fast4me]

This is a new motor to me, it looks to be a pre 1925.
The Knuckle buster knob and flywheel look to be an Evinrude Model B. Transom clamps are aluminum. There is one decal on the gas tank that is very readable it reads "EVINRUDE Lightweight Sport Model". The Serial Number reads K 1598
I’ve done the preliminary "POSTMORTEM" and I know some of the parts that I need. what have I got here.
Pictures yeah I’ve got ’em, could not attach.
Thanks for any help.
Jim

2Fast4Me

[garry-in-michigan]

The aluminum model "K" was only produced in 1922 as an answer to the aluminum Elto. They used the same patterns as the cast iron model and so although lighter, it wasn’t as sturdy. So many aluminum parts broke that it was an embarrassment and quickly dropped from the line. It isn’t even included in later Evinrude model lists. So you have a very rare bird for which parts are impossible to find. . . 🙄

[2fast4me]

"1922" just what I was looking for Garry and yes the tiller has been repaired with steel straps and a hickory hammer handle and both transom brackets have been broken and repaired multiple times. It probably died many years ago then was put in some corner only to be discovered during an archeological dig of some old hoarded years later. I’ll take it to the Constantine meet in july and get some help with it.

2Fast4Me

[2fast4me]

I need piston rings- two of mine have been removed….
Has anyone had gaskets made?…
How is the flywheel removed, special flywheel puller?

2Fast4Me

[Tubs]

How to remove the flywheel.
I welded some nuts together but you
can just jam them together on the bolt.

https://www.youtube.com/watch?v=RWgE9XiIBnk&t=4s

Rings
http://pistonrings.net/

A "Boathouse Repair" is one that done without having tools or the skills to do it properly.

[2fast4me]

Thanks Garry it’s always good to hear from you your knowledge, wisdom, insight and humor are always refreshing

quote :

So many aluminum parts broke that it was an embarrassment

quote :

how true,

a very rare bird for which parts are impossible to find. . . 🙄

well said.
It’s my plan to just get it running and do all the functional stuff. I don’t think I’ll restore it as I don’t want to replace any original decals. The transom clamp has been repaired multiple times and is now showing signs of breaking in new places. I may find a transom clamp assembly from a similar motor (hybrid if you will) just to have it on the back of a boat.
Thanks also Tubs for the flywheel removal instructions, I’ve done this in the past I just did not know if it was the accepted method for this motor. And thanks for the direction for the rings.
Wish me good fortune.
Jim

2Fast4Me

[2fast4me]

Pictures added

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Attachments:

2Fast4Me

[PM T2]

I saw Evinrude K-1598 at Constantine, and have photos of it in my archives. I guess it was you who brought it to the display tent.

Chances are the lower unit also broke, they originally were aluminum housings, not bronze. I have seen aluminum lower units that survived. Funny that they replaced the housing but not the water pump.

#1598 has been well "loved", judging by the attempts to bolster weakened/fracture original pieces.

Good luck with it.

Best,
PM T2

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...

[Author]

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