no spark - evinrude 3hp

[Rallendk]

Hey there.

My old Evinrude 3hp from 1968 suddenly wont spark anymore. I have tried changing the plugs for new ngk g6s ones, which havent helped.

The problem started when the motor was dipped in saltwater last week. I rinsed it in cold tap water afterwards, let it dry and sprayed it thorougly in some kind og marine wd40 thing.

Any clues to what might have happened?

 

[Bosunsmate]

Re: no spark - evinrude 3hp

It may of ruined the condensor and or coil under the flywheel.
Theyd be about thirty dollars to replace in total.

 

[Rallendk]

Re: no spark - evinrude 3hp

Cool. How do i check those?

 

[JB]

Re: no spark - evinrude 3hp

Your coils are probably shot. Replace them.

Don't use NGKs in any JohnnyRude. That engine loves Champion J4C or J6C gapped at .030. J4C for all-round use, J6C for extended low speed or idle.

 

[Rallendk]

Re: no spark - evinrude 3hp

I have no idea what a coil is. Any guides or drawings that explains where to find it and chance it? Is it hard?

Also - what exact part am i looking to buy?

 

[kfa4303]

Re: no spark - evinrude 3hp

Hi Rallendk. Here's a great link that can walk you through an ignition tune-up/rebuild. I would also suggest you use Champion J4C plugs. Be sure you've any and all water from the cylinders as well.

3 HP Evinrude Johnson Outboard Tune-Up Procedure 1952-1967

3 HP Evinrude Lightwin Ignition System Tune-Up 1952-1967

 

[Rick.]

Re: no spark - evinrude 3hp

it is very important once a motor is dipped that it be started as soon after as possible. That being said, You need to pull the flywheel as stated above. Perhaps you got oil on the points so make sure you set them and clean them very good. Lacquer thinner on a buiness card works well. The carb. should be at least drained, at best cleaned. If you've had salt water in the cylinders that's not good but pull the plugs and pull the recoil a few times and put some fogging oil in them and pull the cord again a few times. Good information above for sure. Best of luck. Rick.

 

[Rallendk]

Re: no spark - evinrude 3hp

Okay. I pulled the recoil multiple times just the day after the accident. Both with and without the plugs, and before/after spraying that marine/wd40/oil spray inside the the plug holes, so I guess that I drained it pretty good pretty fast. So far, so good!

It seems like this little engine is about to turn into some kind of a bigger project, which is pretty good actually. I didnt run too well the times i've been using it, and if I can get it to run almost like new, that would be so awesome!!

I have been reading your great links and searching ebay for a bit. It sounds like I am about to order this parts:

Tune up kit: New Johnson Evinrude Tune Up Kit for Outboards 172522 18 5006 | eBay

2x Coils: New Johnson Evinrude Ignition Coil for Outboards 582995 584477 18 5181 | eBay

2x J4C spark plugs.


Shouldn't that pretty much be all I need in order to fix this old beauty? I guess it just need a lot of patience, waiting for the parts to be shipped from US to Denmark! Anything else I should pick up at the same time?

 

[Rick.]

Re: no spark - evinrude 3hp

I would add a new impeller, carb. kit, and plug wires and boots. It would not add much cost and if your looking at long term use it just makes sense to me. Some time ago there was a fellow posting from Holland who sold OMC parts. I remember thinking that would be such a plus for the European community. I'll have a look tonight and see if I can find his post. Rick.

 

[Rick.]

Re: no spark - evinrude 3hp

http://forums.iboats.com/johnson-ev...-hp-2-stroke-problem-updated-pics-589412.html
Well I found the thread I was thinking about. I hope you can make contact with this fellow from the Netherlands. You should include your location in your profile. Rick.

 

[Rallendk]

Re: no spark - evinrude 3hp

Seems like the spare parts are already waiting for me at the postal office. I'm going to pick them up tomorrow.

One bonus question, though. How much does the shaft need to be submerged in water when testing it off? I have usually submerged it to the line on this picture. But is that enough?

 

[lindy46]

Re: no spark - evinrude 3hp

Another 4-6" deeper

 

[kfa4303]

Re: no spark - evinrude 3hp

+1. 4-6" deeper is what you want. it won't make a super strong "pee" stream, but you should notice water coming out of the exhaust.

 

[Rallendk]

Re: no spark - evinrude 3hp

Thanks! I will try to get a bigger barrel to submerg it in. Otherwise, i might end up waiting with the startup untill I get to the water next time. If I just get the sparks to spark, I hope everything will end up working again.

Another bonus question, though. In the earlier mentioned guide -3 HP Evinrude Lightwin Ignition System Tune-Up 1952-1967 - the guy uses some grease on the rocker posts and some silicone on the wires connecting to the coils. Do I need this, or would it work without it? I hoped I would get a little with the kits I bought, but that wasn't the case. If I need it, what is the exact names of the products I am looking for? With a more specific name, I can try to look for something similar here in Denmark. I bet theres a 100 different types of grease and silicone products, I just need to find the right ones..

 

[Rallendk]

Re: no spark - evinrude 3hp

Btw - what does rocker mean in this context?

 

[kfa4303]

Re: no spark - evinrude 3hp

Hello again Rallen. You don't really have to use the silicone/diaelectric grease on the coil posts. It just help to prevent a bit of corrosion. The "rocker posts" in this context refer to the the small post the pivot of the points will be lowered on to. Any light oil, such as 3-in-1 (not sure if you have it in Denmark) will work. Adding a small amount to the rocker post simply helps the points open and close more smoothly, but it will be ok without it. There will also be a small, fiber oiler wick that comes in the kit which you apply a bit of oil to as well, which will help lubricate the crank shaft cam. The key is to be very light in your application of any oil you use. You simply want to add enough (1-2 drops maximum) so that all of the moving parts are lubed.

 

[HighTrim]

Re: no spark - evinrude 3hp

Dielectric grease on the coil post is what you want to prevent corrosion. You can buy it at any auto store, no matter what country you are in, in very small tubes. I also smear it over the plugs before I install the boots on them. There are many, many other uses for it. I promise it wont go to waste. If you want your motor to last, dont take short cuts. Do er right, and enjoy it for years to come.

I also wouldnt reccomend oil on the rocker (not like Van Halen ) arm. Use a light, LIGHT coat of grease. The oil will spray off and coat the points, limiting spark. If you but an OEM tune up kit, and maybe even the Sierra, but not sure as I dont buy aftermarket, you will get a little pill filled with grease. Split it inhalf, the put it over the rocker arm,and back up. That coats the arm and you are ready to go.

The 3 in 1 is good for the oil wick, if you dont get a new one in the kit. Just a drop though, a little goes a long way. Light coat of grease under the mag plate as well, you dont need alot. A little goes a long way here to protect the brass from wearing.

You can tell alot about the experience and knowledge of a previous owner by the way he maintained his motor. Do it right, and get complimented by the next guy to wrench your motor. If you do it right, it will be your great grand son complimenting you!

 

[Rallendk]

Re: no spark - evinrude 3hp

Today, I finally had the time to try and replace the mentioned parts of the motor. The process didn't turn out as good as I had hoped, though. I have borrowed a flywheel puller, but I couldn't manage to get of the flywheel. In the process, I ended up breaking a small part of the flywheel of. I forgot to take a picture of the damage, but I have tried to illustrate it in this picture:



Its only the very top layer of the wheel that has been damaged, and it doesnt seem to interfere with any of the functions. I am a little bit worried about the balance of the wheel though. Do you think it will be okay?

 

[nwcove]

Re: no spark - evinrude 3hp

You must be using a gear puller!! Dont do that. You need a harmonic balancer puller and three grade 8 bolts.

 

[kfa4303]

Re: no spark - evinrude 3hp

+1. You MUST use a proper flywheel puller (aka harmonic balancer puller) along with 3 grade 8 bolts and washers. As you can see, using the gear puller will only damage the flywheel. You should be able to find a puller at any auto parts store. Here's a great pic of how it should be used.