1985 Johnson 20hp with a big secret part 2 Gear Box Time

Let's see what is going on with this gear box.
Follow the links below for some of the items used in this video:
AMSOIL FULL SYNTHETIC Gear Oil 75W-90 1 Quart amzn.to/3xyjq3d
Heavy Duty Push Button Momentary Start Switch amzn.to/3cUjYso
Petrol Engine Cylinder Compression Tester Kit amzn.to/3iVme6C
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Electric starter
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CRANK N CHARGE Starter Solenoid Replacement For Johnson, OMC, Evinrude Outboard Motor
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wiring connector kit: amzn.to/2Um5N91
Lucas Marine Grease amzn.to/3yiKncn
Carb kits:
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Impeller:
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Johnson/Evinrude/OMC New OEM GASKET fuel pump
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Aluminum 3 Blade Propeller - RH, 10.5" Diameter x 11" Pitch x 14-Spline
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Aluminum 3-Blade Propeller - RH, 10.1" Diameter x 13" Pitch x 14-Spline:
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Aluminum 3-Blade Propeller - RH, 10" Diameter x 15" Pitch x 14-Spline:
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Video equipment used
Canon EOS M50 Mirrorless Vlogging Camera Kit with EF-M 15-45mm Lens, Black
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Comica BoomX-D D2 2.4G Wireless Lavalier Microphone System Digital 1-Trigger-2 Wireless Microphone Transmitter & Receiver SLR Clip-on Micro phone,Lav Mic for Smartphone Camera Podcast Interview
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email me at
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mail me at
RMD Creations
PO Box 387
Wellman, IA 52356

[@TheWalkWithAl]

Enjoy the video i used to do some repairs and overhauls on a lot of different boat motors and a lot of repairs on the lower unit I always enjoyed. Doing the work. 👍👍👍👍

[@Michaelsbackyardmarina]

Thanks for sharing and thanks for watching

[@MicahsMotors]

Just the video I was looking for! My buddy has one that seems to have a bad clutch dog, now I know how to get inside without breaking it!

[@Michaelsbackyardmarina]

Awesome, thanks for watching

[@mikewallace8087]

My hand basher impact is a Craftsman from the mid/late 1970's .

[@Michaelsbackyardmarina]

The tools last a long time for sure, thanks for watching

[@danielrobert7181]

I think that finding a spring and ball bearings loose inside the housing explains the problem. The shifting mechanism is held in place on the prop shaft by inserting a spring in a hole which in turns, pushes ballbearings out which lock it into place. Upon disassembly, It should have come all locked in. So it must have somehow come loose with the loose ball bearings chewing up those gears. I guess the yoke pivoting pin had been mistakenly tampered with at some time. Once removed, it cannot just be put back in. It must be installed within a complete gearcase reassembly. Regards !

[@Michaelsbackyardmarina]

That would be my guess as well, Thanks for watching and sharing.

[@jenz859]

the secret is you can put a 35 intake and carb on this 20. where are you located, im in cincinnati. i have a 1985 20hp johnson that i want to get running. great videos by the way.

[@christianousa9193]

I have this same split ring pliers, I Love Channellock tools. And once again, GOOD video! Keep up the great content coming Mr. Michael! Thank you!

[@Michaelsbackyardmarina]

I like cool tools, thanks for watching

[@TimsWorkshopTJY]

Hi Mike, yep that lower unit is toast. Who knows how that happened? Anyway, over here in the Seattle area marketplace on the Islands there are stacks of old outboards and parts. So, If I go over there it will be with a shopping list since the cost of the ferry boat ride is not cheap anymore

[@Michaelsbackyardmarina]

That would be neat to rummage through it sounds like. Thanks for watching

[@dirtybuzzard5977]

Yelp I reckon somebody was gonna change gear oil but pull out the shifter screw out instead. Or ran her with out oil then put oil in it .either way they tried it didn’t work left it sittin’ . Yelp it’s crazy how much gears cost . Hope ya can find a good gearbox .. 👍👍Drone👍👍. As always Sir thanks for the ride along

[@Michaelsbackyardmarina]

I will eventually come up with one, thanks for commenting and watching

[@codyj919]

I can't wait to see the big secret.... I've done one myself. I have done one myself, and i have a question about the timing... I just kinda need how too on going from 30° to 34° hope I'm not spoiling it

[@hammer9856]

Gear box damage might be due to operator error... tried to shift it into gear when the engine was at full rpm. The broken skag might be another clue... They hit an obstruction that broke that and also stopped the prop from spinning while at high speed damaging the gears. Hopefully you can find another working gear assembly for it.

[@Michaelsbackyardmarina]

I will be on the look out for one for sure, thanks for watching

[@richardcranium5839]

i didnt see the drive pinion coming out. my guess is the top drive pinion bearing seal went bad got water in and the top bearing went out and over time spalled the gears then at some point one of those needles dropped locking it up breaking the tooth. thats why pressure testing is so important any time you put a water pump impeller in. you are literally right there. a faulty top seal will let some water in but the oil level keeps most of it out. they almost never show an oil leak, unlike the prop shaft seal.

[@Michaelsbackyardmarina]

true, this lower unit had zero water come out when I drained it so it surprised me to see what was inside. Thanks for watching

[@samtate1260]

Someone hit something hard busted off the skag and caused carnage inside the gearbox looking like 👍🏻

[@Michaelsbackyardmarina]

could have been that very thing, thanks for watching

[@jrmrencso8716]

You lucked out on that bearing carrier pulling right out, most have to be destroyed, and removed in pieces.

[@Michaelsbackyardmarina]

I thought I might have to put some heat to it but it came right out. Luckily no salt water near here. Thanks for watching

[@Partimepeasant]

I had the same problem with a new Suzuki , the heat treat was the culprit. By the way Suzuki didn't cover the repair! I ordered a new gearbox / lower unit and installed it myself. I am still on the water, you can do this.

[@Michaelsbackyardmarina]

Oh it will be on the water again some day. I'll come up with another gear box assembly, Thanks for watching

[@k6outdoors]

Maybe you should do a craiglist rebuild... hahahaha

[@Michaelsbackyardmarina]

Like that Idea LOL

[@garyrichard2177]

I have a question? I live orange Texas and have a boat and 1985 40 hp Johnson so what is the best way to clean water jacks in motor? Some say vinegar in water tank

[@mathieujvideos4403]

on a Johnson 25 HP 2003 is it possible to convert it to 35 HP? with the carburetor and intake manifold? THANKS !! great video

[@timconklin8489]

I hate to see those gears so damaged, I hope you can find a donor motor to replace the gear box Thanks, Tim

[@Michaelsbackyardmarina]

I will keep searching, the power head runs too good not to use, thanks for watching

[@MsJon52]

I wonder if the channel, this old outboard would have a gearbox, might be worth an email, just a thought.

[@Michaelsbackyardmarina]

Him or Kodibass may have something. thanks for watching

[@henrikchristiansen6145]

Good video, but I wish you would have shown us the pinion gear and how bad it looked. Aloha..............

[@Michaelsbackyardmarina]

I will show you the pinion gear in an upcoming video. Thanks for watching

[@King-Frosch.]

But anyway show us that you can put it back together and get it “working” Just for the fun of doing it :-)

[@Michaelsbackyardmarina]

Cost cost cost, I will on one that doesn't have as many costly parts involved. Thanks for watching

[@nikoskag816]

Liar...you never told us the secret...😢