Topic: 1950 Elgin 57158741 7.5 outboard help – Page 2

This topic has 17 replies, 7 voices, and was last updated 8 years, 7 months ago by fisherman6.

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July 13, 2016 at 9:56 pm #40137
fisherman6
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US Member - 2 Years
Hemlockman,
The magneto is WICO. The points have a bake lite of phenolic slider that needs to be clean and lightly lubricated to work properly. The contacts should be able to be cleaned up unless the condensers were really bad and it was run for some time that way. I believe the new OMC condensers will function fine as a replacement. The capacitance isn’t perfect but is probably better than the originals and shouldn’t cause any problems. I remember the coils in mine being cracked and in bad shape. The OMC replacement coils can be used on the original WICO laminations to repair the magneto. I believe there is a link to this procedure on the elginoutboards.org website also if you need some help with this procedure. I still have to work on mine at some point.

I have not had the flywheel off the latest one I acquired which is just like yours. I expect it to look very much like the later one that I have looked at before, but I could be wrong. If I get into that one and it needs coils I’ll try to get some pics and describe the process for you. I’ll see if I can get some pictures of the mag tonight. That should at least help you know what yours should look like when you get there.
-Ben

OldJohnnyRude on YouTube
July 13, 2016 at 10:33 pm #40139
Steve A W
Participant
US Member - 2 Years
Hemlockman
I found out the 5 and 7.5 are the same clamp, so if your parts motor
doesn’t work out shoot me a private message.

Steve A W

Member of the MOB chapter.
I live in Northwest Indiana
July 13, 2016 at 10:58 pm #40140
frankr
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US MEMBER PAY BY CHECK
I’m thinking it probably has the orange shellac coated coils. If it does, you are in luck. Those things are bulletproof. But not cockroach proof. Those buggers think they are delicious.
July 14, 2016 at 2:45 am #40161
fisherman6
Participant
US Member - 2 Years
Well, I pulled the flywheel on my old Elgin. My magneto is complete and functioning properly although it looks.like the pinto need to be gapped properly. Looks like more than 0.020 gap there to my eye. Other than that it throws a mean spark and you can’t hardly turn the flywheel slow enough to not make a spark at the plug. I took some pictures to show what the complete magneto should look like. I’m glad my coils are still good. No way OMC coils I’m used to are going to fit over those laminations. My later Elgin has different coiks than this one. I believe the poins are the same between the two though. Also, the points appear to be contact points rather than breaker points. The points cam keeps both sets of points OPEN until they close to fire the plug. You can see the cam has a low spot cut in it and the rest is a larger diameter. That’s another thing I’m not used to.
-Ben

OldJohnnyRude on YouTube
July 14, 2016 at 6:37 am #40167
frankr
Participant
US MEMBER PAY BY CHECK
Thanks for looking, Ben. Yep, those are the good ol’ orange shellac coils. They came in two sizes, 5/8" laminates (early) and 7/16" (later). They’ll still be good another 60 years from now. I’d be very much surprised to learn that they are maker points, which I doubt.
July 14, 2016 at 11:36 am #40169
fisherman6
Participant
US Member - 2 Years
Frank,
I think you are right about the points as I think about it more. Even though the cam profile is different I still doubt these points are ‘maker’ type. I’m thinking they close up in time for the coil to charge the condenser and then break to fire the plug. I’d have to study it a bit closer to find out for certain but I bet you’re right about them still being breaker type points. I am quite impressed with the spark this magneto makes. I don’t think I have found another yet that will make a strong spark with any less rotational velocity than this one.
-Ben

OldJohnnyRude on YouTube
July 15, 2016 at 12:11 am #40220
hemlockman
Participant
Fisherman6..thank you very much for the pictures..I will using them for reference once I pull the flywheel..also..thanks Steve AW..I will keep you in mind..still waiting for the guy with the parts motor to get back to me…and thanks to all for your input..it will help me get this motor up and running!
July 15, 2016 at 2:18 am #40228
fisherman6
Participant
US Member - 2 Years
Hemlockman,
You are very welcome. I’ll do what I can to help if I can. I’m sure mine will need an impeller and I believe it’s the flexible vane type. I put a new one in my later Elgin and I’ll probably pull that one and put it in this one as the other one needs plenty of work. I had Bob Long recast a new one on the original brass hub. Here is a link to his website http://home.earthlink.net/~flyingscott/
My other one has pieces of the impeller stuck in the cooling paths so I have to take that one all apart and get way onto it. Not ready to do that yet so long as this one doesn’t have the same issue. Maybe getting this one going will inspire me to work on the other one but I have lots of other project motors to work on.

Let me know if you need other pictures or help. The only thing I have found missing on mine yet is the idle mixture screw. The carb needs a bit of TLC but pretty decent and complete other than that. Hopefully that will help both of us and anyone else that may have the same questions.
-Ben

OldJohnnyRude on YouTube
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