Weight of a Johnson 40hp supersea horse

[MossLandingPaul]

Hello all,
New member to the forum, my first post! Just bought a 1958 Thompson Bros woodie runabout (project boat in decent shape) that came with a 1965 Johnson 40 hp motor.
It’s model RDS-27A, s.n. J2513573. It’s an electric start. I’m wondering if anyone knows the weight of this motor? I figure it must weigh at least 100lbs. Currently it’s lying
on it’s side in the boat and I’m thinking of renting an engine hoist to lift it out so I can start going through it.
thanks
Paul

[frankr]

145 pounds. Rasseling those things around by hand back in “The Day” is one reason my back is shot today. That and a lot more abuse.

1 user thanked author for this post.

MossLandingPaul

[crosbyman]

well… the 1964 rds 26 says 150 lbs close enough ?

Joining AOMCI has priviledges 🙂

1 user thanked author for this post.

MossLandingPaul

[MossLandingPaul]

thanks Frank and crosbyman. I knew that beast was heavy but 145 lbs, yikes! Definately not trying to lift it without a chain hoist or engine hoist!
It looks in good shape but want to do the usual (plugs/points/wires/carb) and see if she’ll run
thanks again, appreciate the info.
Paul

[outbdnut2]

Your idea of renting an engine hoist should work good. I have one and use it for the bigger motors. I believe your 40 HP Johnson has a lifting ring on top of the engine block if you can get the cover off with it laying on it’s side n the boat.
Dave

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• This reply was modified 4 years, 8 months ago by outbdnut2.
• This reply was modified 4 years, 8 months ago by outbdnut2.

2 users thanked author for this post.

vintin, MossLandingPaul

[MossLandingPaul]

thanks Dave, great photo, a hoist looks like the way to go. I was surprised to see how much this motor weighed. I had to shift it around inside the boat a bit (supporting the powerhead and securing it so it
wouldn’t punch a hole through the boat on the drive home with the boat!) and figured it was at least 100 lbs. but 145! Yikes. Here’s shots of the motor and boat

[lindy46]

And that’s a long shaft so even heavier. Boat looks pretty nice.

[outbdnut2]

There weren’t many boats in 1958 that needed a long shaft motor, but, yeah there were a few. If the cavitation plate extends more than a couple inches below the hull, you have a short (approx 15 inch) transom and should then have a short shaft motor. Nice looking boat!
Dave

[joecb]

Hello Paul, welcome to the forum… So which model Thompson do you have? I’m a Thompson owner also, 1957 Sea Lancer 16′ 8″ . Pretty big boat, I run a 1961 , 75 hp Evinrude. Can you post pix of your boat? and where’s home?

Joe B (SE – Michigan)

[MossLandingPaul]

thanks Dave. good point on shaft length, I was wondering that myself. I’ll have to measure the transom height and determine if this motor is appropriate for the boat.
I assume it is, as it came with the boat but who knows? The person I bought it from had purchased it three years ago with the intention of restoring her. He put it in his barn
and never got around to it. (sounds like me with about 18 motors in the garage!) I’d like to pick up a 1958 motor so I have one the same age as the boat anyway. I’ll get the
40hp working and sell or trade it to get a 58 motor.
Paul

[Author]

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