1963 Super Sea Horse 40 hp No Start.

igot_it

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Allrighty here's the dirty dirt. 1963 Super Sea 40 horse (RDSL-25D) sitting for fifteen years. Of course no start. Following my manual and some advice here I have done the following.
New gas and mix. After reading here I mixed at 32:1 with a little extra.
Replaced-Fuel line and bulb from tank.
Replaced all lines on the engine itself...hard and nasty.
Checked for spark-OK
Checked spark plugs-Ok some gas on the plugs.
Checked compression 90/90 on the button
Tried the fuel down the carb no start.
Checked carb-lots of fuel in bowl and some fuel is in throat behind the choke plate.
Checked fuel pump looks like its pumping. Bowl on filter is clear and looks ok.
Pulled carb. Cleaned bowl and removed low speed needle. something doesn't feel right on the low speed adjustment. It's too tight or some thing not sure.
Flushed the low speed circuit with some carb cleaner and air. Seems clear....
For giggles reinstalled carb and looks like it's flooding out. Thats where I am at. Questions
Everything so far seem sensible?
Anything I might have overlooked?
I'm thinking a carb kit. Any other ideas?
Is this engine worth some money put in it. I have a 1970 20 horse that I re-habed and now is a champ. Will this motor be as reliable?
 

R.Johnson

Rear Admiral
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Sep 24, 2003
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4,446
Re: 1963 Super Sea Horse 40 hp No Start.

Have you checked compression. If the inlet needle in the carb is leaking, it would supply to much fuel, and flood the engine out.
 

igot_it

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Apr 21, 2010
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Re: 1963 Super Sea Horse 40 hp No Start.

Yup. Compression is 90 psi top and 90psi bottom. The inlet needle on the carb has a rubber tip that seemed to be in good shape. Dos those come in carb rebuild kits?
 

CATransplant

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Re: 1963 Super Sea Horse 40 hp No Start.

How did you check the spark? If there's fuel and air and compression and spark, you should get some reaction when you turn the engine over. Even if it doesn't start and run, you should get some attempt.

If the coils in the magneto of your engine haven't been replaced in the past few years, odds are they are cracked and nonfunctional. Semi-bad coils may produce a spark in open air, but not under compression.

That's a pretty simple engine (a good thing) so it shouldn't be hard to get going. But, you should probably pull the flywheel and inspect the coils, points and condensers, along with all the wiring. New coils, points and condensers are cheap. You can rebuild the entire magneto with new parts for about $100. It's a good investment in the future of your outboard.

The next step you should take is to get a factory service manual for your outboard. It will save you so much time you'd otherwise waste as you bring your old Johnson back to life that it will repay you again and again. You can order it right here on iboats. Only the factory manual will do.
 

igot_it

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Re: 1963 Super Sea Horse 40 hp No Start.

I have a Seloc manual and the original owners manual. Your talking about the big book right? I checked spark with a neon tester first and then by holding the plugs against the block. Nice fat blue spark. Would you recommend pulling the fly wheel before doing a carb re build?
 

igot_it

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Re: 1963 Super Sea Horse 40 hp No Start.

Yeow! I just looked at the price tag on the shop manual listed on iboats $87. Wow. Is that typical? Also has anyone had much luck with the parts vendors on here? They seem to be geared towards newer motors.
 

tx1961whaler

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May 31, 2008
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5,197
Re: 1963 Super Sea Horse 40 hp No Start.

The original manual is the best one, but it is expensive.
All of the common tune-up parts for your motor are available here at iboats, like all of the ignition parts (coils, points), the water pump impeller, and carb kit.

The 40 is as reliable as the 20, as long as the 40 is not an electric shift. The electric shifts aren't as bad as their reputation, as long as water has not been in the lower end, the proper oil was used, and the shift switch and wiring aren't messed up.
 

igot_it

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Apr 21, 2010
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Re: 1963 Super Sea Horse 40 hp No Start.

I was unable to find either a complete water pump kit, or a complete carb kit on this site. They had the fuel pump kit but there is a complete carb kit that contains a new float as well as most of the fuel pump parts. The water pump kit I'm looking for has a replacement housing as well as the impeller. I was advised that if I did a replacement I should put in a new housing kit as well.
Good advice?
 

igot_it

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Apr 21, 2010
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Re: 1963 Super Sea Horse 40 hp No Start.

Thanks for the advice everyone.JB thats a great tear down tutorial. I think thats where I'm at. I didn't think about turning the carb upside down to check the inlet needle. I'll try that.
 

JB

Honorary Moderator Emeritus
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Mar 25, 2001
Messages
45,907
Re: 1963 Super Sea Horse 40 hp No Start.

The Top Secret file is an archive of common questions, etc. about JohnnyRude outboard troubleshooting and procedures.

It is not a tear down tutorial.
 

igot_it

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Re: 1963 Super Sea Horse 40 hp No Start.

Ok it's not a tutorial. Useful, though. Got the rebuild kit from the dealer. One question though. The float that I got with the NEW kit is cork. I asked and the dealer said it was the only one factory available for this kit. (Its an OMC kit.) I asked about ethanol compatibility and they said it should be fine. I imagine I could get a plastic float someplace if I looked...do I need to? Thoughts?
 

Nasbinator

Seaman
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Apr 25, 2010
Messages
50
Re: 1963 Super Sea Horse 40 hp No Start.

I have your same motor but mine is a 61' and its float is made of cork. I rebuilt mine because it kept flooding. The valve was not seating correctly. Works fine now. I would do that and also check your points and coils like what was mentioned before. When you try to start it, take your plugs out and look to see if there dry or wet. If there dry your not getting fuel.. if there wet your getting fuel but not proper ignition.
This is my first season running my 1961 40hp seahorse and seems like a good motor.
 

igot_it

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Apr 21, 2010
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Re: 1963 Super Sea Horse 40 hp No Start.

Also the inlet needle is all metal. The old one had a rubber tip.
 

Nasbinator

Seaman
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Apr 25, 2010
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Re: 1963 Super Sea Horse 40 hp No Start.

You might have the wrong kit. Pretty sure the valve meant for that motor has a rubber tip. Mine does anyway.
 

igot_it

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Apr 21, 2010
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Re: 1963 Super Sea Horse 40 hp No Start.

I don't know if this belongs in a new thread or not but here goes....the same engine has one of those old school automatic chokes on it. If I recall correctly it never worked right even when it was new. My uncle always used the manual choke setting on the motor, which was kind of a pain. I have talked to others who have said the non-electric chokes were pretty problematic. Is there a retrofit/upgrade to the newer electric choke systems or the cable type available or am I stuck? Is it even worth messing with?
 

Nasbinator

Seaman
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Apr 25, 2010
Messages
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Re: 1963 Super Sea Horse 40 hp No Start.

I'm not sure its worth messing with. I use the manual choke also. But for me its not that big of deal. I only need to use the choke once, the first time I start it that day, then its all good from their. I dont know if the newer model of chokes fit or not. :(
 

igot_it

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Apr 21, 2010
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Re: 1963 Super Sea Horse 40 hp No Start.

Ok sorry it took so long to update this thread. Got the carb kit in all went well. The inlet needle seems to be seating and closing correctly now. When I squeeze the primer bulb it gets hard and no fuel pushes into the carb. Still no start. Do I move to electricals now? I had a twenty horse that sheared the key way and was out of time. Possible here yes? Cranked it I am getting some fuel on the plugs. Checked spark and it still looks pretty good. I'll re-trouble shoot this afternoon.
 

igot_it

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Re: 1963 Super Sea Horse 40 hp No Start.

I finaly got my tools together and rebuilt the carb. The flooding has stopped so good call on the re-build. I also ordered a new spark check like was mentioned previously. Spark was not as good as I thought. (Good call CATransplant :redface:) Pulled the flywheel to check coils and UH-OH! Both coils are cracked and one looks like it is blown as well. Ordering the coils and a kit will in stall and give an update. Thanks for the advice everyone....I think I'm getting somewhere now!
 

igot_it

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Apr 21, 2010
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Re: 1963 Super Sea Horse 40 hp No Start.

New Coil's in. New plugs ignition etc...done. First key it sputered and then fired right up. :0 Now I just need to get the controls lubed and the seats back in! Thanks everybody for the help.
 
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