Johnson 2R72M

[enrico-italy]

No news about this hybrid engine?

[slim60]

Buongiorno Enrico; I’ll bring the generator to an electric motor repair shop this winter. If it can be saved I’ll try to shoot a video. Or at least some pix.

[enrico-italy]

I will stay tuned….

😉

[Steve A W]

Slim60
Any news on this motor?

Steve A W

Member of the MOB chapter.
I live in Northwest Indiana

[slim60]

Steve A W; This project is way down the list for now. But since there is so much interest I’ll try to get the generator to the shop soon. Boats to store, motors and a house to winterize. Tonight I disassembled my TD-20 lower after soaking in ATF/acetone for three days. It still took some heat and vibration. It was bone dry and rusty but only damage was a flat spot on the drive gear. I’ll keep you posted on the 2R72M.

[PugetSoundBoater]

It is definatly an owner modification. If it is a generator, why would one put it underwater? The yellow wire is way too small guage for an electric start . It’d be way easier to run it off the flywheel in either case .I don’t think if it is a motor intended to propel the boat, that it would have the power to turn the 2 hp powerhead over in addition to turn the prop since it was built as a direct drive with no nuetral. That’s what is fun with human ingenuity. We try all kinds of things ,some work well, some"back to the drawing board". Please take that lower unit apart and show us what’s inside, may need an impeller. I have 2 of these 2 hp 1972 Evinrude and a 1977 Johnson. I carry one as a backup ,cause I don’t like rowing against the tidal current. Not that I don’t trust my work…

"Some people want to know how a watch works, others just want to know what time it is"
Robbie Robertson

[slim60]

In ’69 a Johnson rep came to my high school and took interviews. I started at the Waukegan plant in July as a flybore operator making parts for the big motors. Nine months later I was laid off. Never saw anything like this one though. I agree it looks like an owner modification as the yellow wire just seems strange being tie-strapped to the leg. I got it with no spark plug and two battery cables so I thought it was a troller. There is an old school electric motor shop in town I’ll check out next week.

[PugetSoundBoater]

Slim60 -the serial # you posted(E3532314) would be for a Evinrude . Where was the serial # located, on the metal transom clamp tag or the metal plug on the powerhead? The paint and decals all look like original factory Johnson. Anybody else ever had a Johnson or Evinrude with the E or J first digit on the other brand ,ie E on a Johnson ,J on an Evinrude? Unless the owner swapped powerheads ,it would have been done at the factory ? The serial # should match on the 2 locations, Mine allways have. Just a thought that maybe it was a factory prototype, with the wrong brand designator in the serial #. You have sure got our curiosity going. Just the detective in me ..Thanks for sharing!

"Some people want to know how a watch works, others just want to know what time it is"
Robbie Robertson

[slim60]

The transom clamp tag and the powerhead plug match.

[slim60]

The auto electric shop called today saying the motor had a dead short, probably in the windings. I’ll put it together and on the rack for now. A few questions still… Where did that L/U come from? How did it disengage from the gears? Did the prop push the gears away? It came with no spark plug so no compression… Would it have worked if the gears were removed? Is that how the motor burnt out? Well, my "gears are stripped" on this one. Maybe someone else would like to take a shot at it. Thank you all for your interest. Slim

[Author]

Posts