1959 35hp johnson super seahorse

[HENE_USMC_78]

I'm hoping i can find some information on my motor i have. I got a damn good deal on my 59' Johnson super seahorse. I payed $60.00 for it. when i picked it up the motor wouldn't start. Or so the guy told me. he had told me he thought the coils were bad. I had a buddy, and my completely inexperienced butt looking (my buddy was doing circles around me...obviously very experienced) at it about 3 days ago and after do a quick and thorough look over, we were able to get it running. It will run with no dying, but im not getting full throttle out of it. We already decided that come payday im gonna go pick up some new coils and points. Problem 1. Where in the world am i gonna find points and coils for a 59? My buddy said that they are the same coils that are used on the old Briggs and Strattons. Can anyone confirm or deny this? i looked on the Johnson/Evenrude website, but their site only takes you back to about 1968 or so. i found somewhere on line to purchase a repair manual and its fairly cheap...$25.00. im working on getting it now. But I'm the kind of guy who'd rather take sound experience over trying to read a book. I also want to replace the oil in the lower end. 2. what kind of oil do i use? i guess basically i want to give her a good tune up. but im not sure on specifics. can anyone help me out here please?

Chris

 

[tx1961whaler]

Re: 1959 35hp johnson super seahorse

They are definitely not Briggs and Stratton coils.
You can buy all that stuff here at iboats:
Coils:
http://www.iboats.com/mall/partfind...d_poid=109172&gd_row=133&**********=125599098
Points:
http://www.iboats.com/mall/partfind...gd_poid=111576&gd_row=23&**********=125599098
Impeller:
http://www.iboats.com/mall/partfind...gd_poid=109125&gd_row=39&**********=125599098
Carb Kit:
http://www.iboats.com/mall/partfind...gd_poid=109328&gd_row=42&**********=125599098

Lower unit takes regular 80-90W Marine gear oil.

 

[lindy46]

Re: 1959 35hp johnson super seahorse

Before spending a bunch of money, check compression. If compression is ok, then proceed. All parts are readily available. I'd also get a carb kit and rebuild the carb. Also replace the water pump impeller.

 

[HENE_USMC_78]

Re: 1959 35hp johnson super seahorse

Thnak you lindy46 for the advice. I think a compression check is a good idea. even though we had it running, it would be a good idea to make sure she is operating correctly. As far as the Carb? i would like to take it off and look at it and check the needle points. I'm thinking it may be a little gunked up. How difficult would you say it is going to be to replace the water pump impeller?

 

[1stgenbird]

Re: 1959 35hp johnson super seahorse

You can also find all the parts you need at:


http://www.laingsoutboards.com

I just ordered a carb kit and float for my '57 Evinrude.

 

[lindy46]

Re: 1959 35hp johnson super seahorse

Water pump is on top of the lower unit. You must remove the L/U to get to it. On that motor, there are 6 bolts which hold the L/U on - they go through from the bottom. There is also a large bolt hidden under the rear exhaust cover. You have to remove a bunch of small Phillips head bolts to get the cover off. Then you'll see the large bolt at the rear - goes through from the top. Then remove the oval cover on the side of the leg to get to the shift rod coupler. Remove the bottom bolt to free the lower shift rod from the coupler. The lower unit will now be free and should drop down. Remove the bolts which hold the water pump housing (be careful - they break easily) and the impeller is inside the housing. Make sure not to lose the key which fits into the driveshaft and drives the impeller. And don't forget to replace the o-ring at the top of the driveshaft.

 

[HENE_USMC_78]

Re: 1959 35hp johnson super seahorse

Good day to everyone. once again, thanks for all the help on this motor so far. i have had sucess in changing out the coils and points, and i even replaced the key way for the flywheel. my next hurdle seeems to be keeping her running at an idle. When i go to fire her up, she seems to have what seems to be a fuel issue. a couple quick squirts of starter fluid and she kicks right over and she'll run. And once she is running, i have to keep up a little on the throttle so she doesn't choke out. i looked up the chart for the fuel/oil mixture. Chart said 24/1. i know thats right. but with the way shes running, it just seems like the mixture isn't right. i go to kick her into full throttle, and she will get up for about a minute and then she kicks back down. then i come back on the throttle and let her idle for a minute and she will pick back up. Is thers something im doing wrong? wrong fuel/oil mixture? a couple other things is when i shut her down, there seems to be quite a bit ofg oil floating ont he water. i know theres suppose to be oil but it just seems like alot. and my plugs seem to keep fouling out. ive had to pull them 3-4 times so far to clean them out. What can i do? Thanks again.

Chris

 

[tx1961whaler]

Re: 1959 35hp johnson super seahorse

24:1 is correct.
It sounds like the carb needs a thorough cleaning. The idle circuit is up under a welch plug #42. The replacement is in the carb kit.

 

[lindy46]

Re: 1959 35hp johnson super seahorse

Yup - clean/rebuild the carb, and also check spark. Spark should jump a good 1/4 inch on both wires with a spark tester. Did you ever check compression? Without good compression, she'll never run right.

 

[MichaelHorowitz]

Re: 1959 35hp johnson super seahorse

I have a 1959 Super Seahorse 35hp with electric start on a 1962 14-foot Mirrocraft runabout. For the last two summers it can start in gear (at high RPM's) but not in neutral with the throttle limit. It needed a lot of gas to run, too much for limit.

I finally realized that I had mistakenly left fuel in the motor over a winter, and went through the carb twice, cleaning out the orifices with air and carb cleaner, removing the jets, cleaning the bowl. While at it, set points and replaced plugs. Put new primer bulb on fuel line. Checked compression - 120 in both cylinders. Adjusted low speed: gently seat, then 1-1/2 turns out. Adjusted high speed: seat, then 1 turn out. Put knobs at 12 o'clock, tightened screws. Re-attached linkage. Put all back together and ran in 55 gallon drum. Ran better than in years. Started in neutral. In neutral, throttle all the way down, still purred at idle. Throttled down has always killed my motor. Ran 5 minutes. Tried in gear. All worked. Brought to lake for camping trip on island 2 miles off shore. Figured I would set high speed on lake with friend.

At Dock, boat would not start, again, and had to get family in and start in gear. Ran sluggish at best. Died on the water half way, then after 15 starting attempts, got us to the island. At island checked motor again. Priming causes fuel to exit high speed jet behind butterfly, and the small intake to right of main carb intake. Ball never gets hard. Well, it did once, with fuel not coming out, and it started in gear, but died in a few seconds for what sounded like too rich mix. Then back to fuel pouring out of carb air intake.

I mess with again, prime sends fuel out butterfly again. I remove starter and carb (on water with 1-2 foot waves-never again). Carb looks clean. Float seems to float. Put back together. Stayed at motor while wife on key start. I work throttle from linkage and bypass throttle limit. Starts, run for a few seconds, fuel pouring out of butterfly. Cannot idle. Killed starter battery in frustration. Towed to shore.

1. Should I order rebuild kit? Sounds like it can only be the needle if fuel not stopping. if so, why, beyond murphy's law did it run flawlessly in the drum?

2. How can/should I set or adjust the needle/float assembly? I did remove it to check the needle and clean out its orifice. Cork float seems OK. What should I do to check it better.

Thanks ahead for any advice.

 

[kfa4303]

Re: 1959 35hp johnson super seahorse

HI Michael. Fuel coming out of the carb throat is a tell tale sign of a stuck float needle. They can be pesky some times. I would remove the carb and clean it one more time taking special care with the float needle. Be sure to remove the welch plugs so that you can thoroughly clean all passages too. Here are few links that may help with the job. They're for slightly different models, but all of the basic steps are the same. Once you've got the carb sorted out, verify spark on both cylinders (should jump a 1/4" gap with a bright blue spark). If you're getting weak, or inconsistent spark, then you'll want to remove the flywheel and inspect the ignition. The compression seems ok, considering the motor will start and run for a bit. Good luck. Holler if you get stuck.

http://www.marineengine.com/parts/v...ntage-evinrude-johnson/377809/37780900001.htm

http://www.duckworksmagazine.com/04/s/columns/max/24/index.cfm

http://www.outboard-boat-motor-repa...hnson 5.5 HP 1954-1964 Carburetor Tune-UP.htm

http://www.outboard-boat-motor-repa...on 3 HP 1952-1967 Ignition System Tune-up.htm