Individual magneto coils
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
-
Topic author - Posts: 245
- Joined: Wed Jan 09, 2019 10:14 pm
- First Name: Dennis
- Last Name: Brown
- * REQUIRED* Type and Year of Model Ts owned: 1926 Roadster pickup
- Location: Spring Hill Fl
Individual magneto coils
If indidual magneto coils test good but have bad wrappings, has anyone rewrapped 16 of them and made up a new magneto coils ring without rewinding them and putting new insulating material between the windings?
-
- Posts: 7238
- Joined: Fri Jan 04, 2019 9:37 pm
- First Name: Steve
- Last Name: Jelf
- * REQUIRED* Type and Year of Model Ts owned: 1923 touring and a few projects
- Location: Parkerfield, Kansas
- Board Member Since: 2007
- Contact:
Re: Individual magneto coils
I doubt it. If you get the ring out of the car and the coils off, you're into a pretty big job. Might as well do it all the way.
The inevitable often happens.
1915 Runabout
1923 Touring
1915 Runabout
1923 Touring
-
- Posts: 5018
- Joined: Tue Jan 08, 2019 7:31 pm
- First Name: Dan
- Last Name: Hatch
- Location: Alabama
Re: Individual magneto coils
Yes you can do it. But you have a couple of problems.
First is you will need to soak the whole mag coil for a few weeks to get the oil out it. If you don’t you have an oily mess.
Next is cleaning up the ring, cutting new insulation for the ring.
Last you will need to take it to a local motor shop to have the whole thing dipped and baked so the coils will stay on the ring.
First is you will need to soak the whole mag coil for a few weeks to get the oil out it. If you don’t you have an oily mess.
Next is cleaning up the ring, cutting new insulation for the ring.
Last you will need to take it to a local motor shop to have the whole thing dipped and baked so the coils will stay on the ring.
-
- Posts: 4634
- Joined: Tue Jan 08, 2019 1:39 pm
- First Name: Norman
- Last Name: Kling
- Location: Alpine California
Re: Individual magneto coils
I have two that I wound on two of my cars and they work fine. I used the book "Electical System". I cut the insulators from Amphanol which I got from an electrical supply store, and wrapped with fiberglass tape. I painted with boat varnish from the marina. Didn't need to bake anything. I also made another and donated it to an auction at the local club. Have not heard anything was wrong with it and it was over 20 years ago.
Norm
Norm
-
- Posts: 4433
- Joined: Sun Jan 06, 2019 8:00 pm
- First Name: John
- Last Name: Kuehn
- * REQUIRED* Type and Year of Model Ts owned: 19 Roadster, 21 Touring, 24 Coupe
- Location: Texas
Re: Individual magneto coils
I’m glad you can buy a rebuilt coil ring. Could I have rewound one? Yes and it’s time consuming and if you want to do it that’s great. There’s lots of information on how to do it.
I bought a rewound for each of my 3 cars. They still work fine after several years.
For any rebuild of a Model T engine the magneto coil is a BIG must do to get the electrical system right.
For a good dependable Model T a good or new radiator core at least and a good rebuilt magneto coil ring is a bottom line must.
I bought a rewound for each of my 3 cars. They still work fine after several years.
For any rebuild of a Model T engine the magneto coil is a BIG must do to get the electrical system right.
For a good dependable Model T a good or new radiator core at least and a good rebuilt magneto coil ring is a bottom line must.
-
- Posts: 1174
- Joined: Thu Feb 21, 2019 1:20 pm
- First Name: Joe
- Last Name: Bell
- * REQUIRED* Type and Year of Model Ts owned: 24 Fordor
- Location: Tiffin Ohio
Re: Individual magneto coils
I have done them years ago, soaked them in draino to clean the copper, it was time consuming and decided after to just buy them done they are to deep in the engine to mess up.
-
- Posts: 4634
- Joined: Tue Jan 08, 2019 1:39 pm
- First Name: Norman
- Last Name: Kling
- Location: Alpine California
Re: Individual magneto coils
One very important thing about rebuilding an engine or installing a coil ring is to get the funnel for the inside oil line aligned correctly and not bent. Many years I bought an engine transmission from the swap meet. It had been built by a good mechanic and machinist in the area. The first time I drove the car after the work was done, I was running on magneto when all of a sudden the engine quit. I switched to battery and it ran fine, but with less power and speed. I drove it for 10 years and then needed to pull the engine to do some work and I found the funnel from the oil line in the bottom of the crankcase. I did have an auxiliary oil line from the magneto plug down to the front of the engine. The winding on the magneto ring was cut when that happened years before. That was when I installed one of the coil rings I had rewound. Now I have changed from one of the slowest cars on tours to one of the faster ones. I can keep right up with the others. I
If I were in your position, I would either rewind the coil ring or buy one already rewound, because it is one of the hardest to get to parts and the better condition it is when installed, the longer it will work.
Norm
Norm
If I were in your position, I would either rewind the coil ring or buy one already rewound, because it is one of the hardest to get to parts and the better condition it is when installed, the longer it will work.
Norm
Norm