Neptune magneto question(s)

[Tubs]

I wasn’t the first to do that. It had to be over 30 years ago a friend came over with a Champion Sweet 16 that needed coils. He had brought a pair of the OMC style coils because he heard that they would work. I told him I didn’t see how. The Phelon coils were still available then, but 3 or 4 times the money. So this “Doctor” had to bite the bullet and spring for the correct coils. When they stop manufacturing the Phelon coils there was a need for a substitute. Knowing it was possible, anyone that would give it some thought would figure out that the obvious thing is to file down the laminates. When I started doing videos I thought one would be worthwhile for those that didn’t know it could be done. I will take credit for using a 7/16″ wrench for a gauge though. I’m sure a ton have been done by now. I’ve just finished one and have to do the other for this Champion I have.

A "Boathouse Repair" is one that done without having tools or the skills to do it properly.

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tibor

[tibor]

Update: How the hell do people cut that 2499 gasket material???

So after I gave up cutting said material for a new head gasket, I put one of the engines back together, I cleaned the head surfaces and added a bit of the copper spray to the original gasket. Now I am measuring 90 psi compression which – according to my brilliant calculation above 😛 – is impossible.

I think this is time to just enjoy having nice compression, rather than trying to calibrate the compression tester 🙂 I also checked spark again, this time with that gap-type spark tester, I am getting 1/4 inch spark just fine. So now I will move onto actually trying to get fuel into that cylinder. (I already cleaned the carb.)

[tibor]

It’s alive!

After doing the whole vinegar then baking soda then dry it tank cleaning routine, first time I put gas into the tank, naturally it all got clogged up with the remaining rust. Nice :-/

So I had to create this beautiful experimentation tank and I am happy to report, the old 77 year old engine ran!  It has not been started – according to its previous owner – since 1989.

I will now hook it up to a small submersible pump to get some water circulated so we can tune it or just be amazed by its noise and smell 🙂  Then it’s onto cleaning, etc the water impeller and in general the lower stuff.

What do people do with the water return pipe? It would seem safer is one could see that water is actually coming out of the engine.

[tibor]

Another update: the 2nd Neptune also runs! The 15A1 has a simpler carb – easier to clean. The cork float was sliding up and down that shaft, so I tried to put (2/3 of) a wine bottle cork on there, probably don’t have it at the right height, or the volume is not enough as it does not make that little shaft protrude out on the top. Not that that matters, the motor still runs. It does not look like that other than a calming indication that you have fuel in your carb the float actually does anything.

I did put a new condenser on both, not sure if they were needed but it cannot hurt probably.

It looks like that someone must have swapped the magnetos in the past as the little decorative Neptune plates on top indicate the other model (on both). And I cannot swap the plates only as one of the plates would need a bigger hole …. which is probably what will happen (getting a bigger hole) as now that I have both running, I do not want to swap everything.

Now I am back with the tank project, put a bunch of nuts in there and swished it around with the already rusty gas. Now I have a better looking tank (on the inside) and a mason jar full of rusty mixed gas with a bunch of nuts 🙂 I’ll see if that tank sealer I got is worth the hype.

On to the two lower units…

 

[tibor]

Scanning the metal parts – drawing – printing – cutting (paper) – trying it on and now I have the two bottom gaskets.

These are done at 300 DPI, will probably redo the others with the better resolution too.

Now I have to cut them out of the gasket material. Does anyone around here use a vinyl cutter for gaskets? Like I said above, mine is too old and weak, I would love to get one that just works. Which one would ppl recommend?

 

[tibor]

Got some cork from Amazon and filed it to size. 1/16 hole in the middle and I have a nice new float that works. Also made a 5/32 shear pin as one of the Neptunes did not have it. Now the prop should stop flopping in the air.

They wanted $10 for a single 5/32 x 1 shear pin online, so I got 5 twelve inch rods for $8 and was totally ok cutting a 1″ part off of one.

 

[tibor]

Update again, printed gaskets on sticker material, stuck those on the gasket material.

Punch holes and cut with scissors later we have one of the lowers working! Prop turns and the cooling works too. (I did not add the water exhaust pipe back for now just to see if I get water flow.

Amazing, 80 year old motor, has not run in 35+ years and a few weekends later it all works. Also, this thing is built like a tank, nothing today is as sturdy and long lasting as these two old motors.

Need to clean them, put the lower for the 2nd one together and make them look pretty but in general these two motors will work.

I got a 1976 Evinrude 6 HP for free, that is the next project …. but that’s for another thread 🙂

 

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