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Finally got around to working on the old Johnson..
Smitty500mag
Member Posts: 13,603 ✭✭✭✭
No, not that one you perverts! [:D]
I'm talking about my old 3hp Johnson outboard motor that I was planning to work on last year. I haven't cranked it since 1988 and it had a miss and had to be run with the choke partially open at that time so it needs at least a carburetor kit and a good cleaning. The motor was made in 1966 and I inherited it from an uncle.
I started tearing it down and I noticed the gas line is as hard as a rock and it's broken and the spark plug wires don't look very good either. So I'm going to replace the electrical stuff too including the 2 coils, 2 sets of points, condensers, plugs and plug wires which I've ordered.
I also ordered a new water pump impeller and grease seal. All together I ordered $163 in parts.
I just went to Home Depot and bought some flange bolts for my flywheel puller. I thought maybe I could get it off without the puller but it won't budge.
This ought to keep me busy for a few days. After this motor I've only got one other motor that's not running and that's an old Homelite chainsaw that will be my next project. All my other pieces of equipment are running now including my pressure washer, rototiller, 2 lawn mowers, trail bike and generator.
I replaced the 2 carburetors on my lawn mowers this past year and put a new carb kit in my Honda trail bike. NO MORE ETHANOL GAS at my house ever!
I'm talking about my old 3hp Johnson outboard motor that I was planning to work on last year. I haven't cranked it since 1988 and it had a miss and had to be run with the choke partially open at that time so it needs at least a carburetor kit and a good cleaning. The motor was made in 1966 and I inherited it from an uncle.
I started tearing it down and I noticed the gas line is as hard as a rock and it's broken and the spark plug wires don't look very good either. So I'm going to replace the electrical stuff too including the 2 coils, 2 sets of points, condensers, plugs and plug wires which I've ordered.
I also ordered a new water pump impeller and grease seal. All together I ordered $163 in parts.
I just went to Home Depot and bought some flange bolts for my flywheel puller. I thought maybe I could get it off without the puller but it won't budge.
This ought to keep me busy for a few days. After this motor I've only got one other motor that's not running and that's an old Homelite chainsaw that will be my next project. All my other pieces of equipment are running now including my pressure washer, rototiller, 2 lawn mowers, trail bike and generator.
I replaced the 2 carburetors on my lawn mowers this past year and put a new carb kit in my Honda trail bike. NO MORE ETHANOL GAS at my house ever!
Comments
Looks like my uncle might have tuned it up at one time or another because those parts look like Mallory parts instead of stock parts. They have an "M" stamped on them.
Regardless they're still pretty old because I've not used the motor for 30 years and my uncle had a long illness before he died that kept him from being able to go fishing for the last 10 years of his life so the parts are at least 40 years old.
I just pulled the flywheel and I'm surprised at how well it looks under there.
Looks like my uncle might have tuned it up at one time or another because those parts look like Mallory parts instead of stock parts. They have an "M" stamped on them.
Regardless they're still pretty old because I've not used the motor for 30 years and my uncle had a long illness before he died that kept him from being able to go fishing for the last 10 years of his life so the parts are at least 40 years old.
All of my parts are considerably older than that and "most" of them still work ....... [:D]
I only have 10-15 after dumping a bunch of them over the last 5-10 years.
My favorites are my 1939 Evinrude Mate 1/2HP and my 1939 Elto Cub 1/2HP.
The Clarke Troller single cylinder from the same time period is an engineering masterpiece! So simple....
A .75 HP Elto Pal is always a fun little motor too!
I still have my Dads 1953 Evinrude 3hp that I ran on our river starting at about age 7. "First pull every time!"
Keep us posted with your progress!
The old Johnsons and Evinrudes are damn near bullet proof!!
The gas tank is also as clean as the float bowl so obviously running the carburetor dry and dumping all the gas out of the tank after each use worked.
The carburetor still had the cork float in it so I don't think it's ever been apart before.
Anyway the only way it would run the last time I cranked it up back in 1988 was with the choke half open so there's a dirty jet some where.
I've got all the parts soaking in Berryman Chem-Dip tonight. Tomorrow I'll put them in my ultrasonic cleaner and then blow the parts out with air and spray carb cleaner.
had to go look...out to shop and it's an Evinrude Zephyr 4 cyl 5.4 hp 1946-48 ??
I remember seeing the Evinrude Zephyr like the 1949 model below at my grandpa's boatdock & restaurant back in the 50s & 60s but I never realized they had 4 cylinders. Seems like a lot of cylinders for just 5.4 hp?
quote:Originally posted by spasmcreek
had to go look...out to shop and it's an Evinrude Zephyr 4 cyl 5.4 hp 1946-48 ??
I remember seeing the Evinrude Zephyr like the 1949 model below at my grandpa's boatdock & restaurant back in the 50s & 60s but I never realized they had 4 cylinders. Seems like a lot of cylinders for just 5.4 hp?
I have one.
Yup, 4 tiny little cylinders. When they run right, they run as smooth as silk!!
I just pulled the flywheel and I'm surprised at how well it looks under there.
Looks like my uncle might have tuned it up at one time or another because those parts look like Mallory parts instead of stock parts. They have an "M" stamped on them.
Regardless they're still pretty old because I've not used the motor for 30 years and my uncle had a long illness before he died that kept him from being able to go fishing for the last 10 years of his life so the parts are at least 40 years old.
I put the old motor back together a few days ago and it's running as smooth now as it was 52 years ago.
I replaced the coils, plug wires, points, condensers, gas line, fuel filter, rebuilt the carburetor, installed a new water pump impeller and changed the lower unit gear grease.
I put her in the water barrel for a test run and she did just fine from a low idle to full speed without having to use the choke.
Now I need an aluminum Jon boat. I found that they are a lot more expensive today than they were when I bought the last one I had about 40 years ago but then so is everything else.