Any idea what model/year this Johnson is

[seahuntboater]

#218098

Greetings.

I will be picking this engine up in New Hampshire in a few months but in the meantime here are a few pics. The serial number looks pretty bad. Is there another place on the engine I can have someone look? Or does anybody have a good guess?

Thanks

Ralph

• This topic was modified 1 month, 2 weeks ago by Mumbles.

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[Ralph Simmons]

#218102

maybe a 1937 Johnson 4.2 HP Outboard Motor
the model number and serial number will tell the truth
if you can post it better
good luck

[seahuntboater]

#218107

I will try to get another pic but fear that the model and S/N are pretty corroded. If they are how do I go about ID ? Is there something on magneto? or other engine parts that will help solve the puzzle?

[wbeaton]

#218111

Decal is 1937. Serial number should be on the block as well.

Wayne
Upper Canada Chapter

uccaomci.com

[seahuntboater]

#218115

excellent thanks Wayne. Do you know if I can find any documentation for it in that Big Red book thing? Is the link working?

[Buccaneer]

#218116

Here’s a 1938 for comparison ….

Prepare to be boarded!

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[The Boat House]

#218120

You're only as smart as the person you're talking to.

• This reply was modified 11 months, 1 week ago by The Boat House.
• This reply was modified 1 month, 2 weeks ago by The Boat House.
• This reply was modified 1 month, 2 weeks ago by The Boat House.

[seahuntboater]

#218162

thanks guys. That is a nice looking motor

[seahuntboater]

#243828

The serial number is legible. It is 257089 Can also read LT37. Is it possible to get a schematic of this? I have no spark and will be removing flywheel soon to look at things.

Thanks

Ralph

[The Boat House]

#243832

You're only as smart as the person you're talking to.

• This reply was modified 1 month, 2 weeks ago by The Boat House.
• This reply was modified 1 month, 1 week ago by The Boat House.

[itchy]

#244376

That 4.2hp motor was made two years – 1937 and 1938. Should turn out as a good running motor.
Carefullly clean the points, replace the leathers in the primer, clean the inside of the tank and pump in
lower unit and it should be ready to go!

[lloyd]

#244403

For leather primer seals and detailed installation instructions with diagrams Send $10.00 cash (no checks or MO’s) and a self addressed Stamped Envelope to me : Lloyd Lautner 9289 North Long Lake Road Traverse City Michigan 49685

[seahuntboater]

#244435

thanks Itchy,

It had spark. After cleaning and reinstalling the carb I had it running briefly from a hose fed fuel funnel. Did not get enough time to adjust fuel mix. Can you please tell me what the initial settings should be on the needle(s). Also should there be an open hole on the part where the primer goes? Any other operational stuff appreciated.
Thanks Ralph

[lloyd]

#244462

Initial settings for both the high and low speed needles should be 3/4 turn open from lightly seated closed. Don’t know what you mean by “open hole on the part where the primer goes” Compression should be 70-77psi. Much good info at: pochefamily.org/outboard except the ad for leather primer seals is about 15 years old and I had to update the price for seals to $10.00 a few years ago. Hard to get the proper leather to make any more.

[seahuntboater]

#244463

here is a pic. Am I missing something? When I press the primer I do see fuel coming from the hole in the “Y”

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