small engine windings

[midnite2336]

Got a small Briggs & Straton engine model Y made in 1934 and the ignition winding is bad. I can do most everything but I do not know a thing about
electronics. I need to know if I can rewind this coil myself and how to do it.
Like size of wire, connections, turns needed or direct me to a site I can find this stuff on. I don't even know what you would call this type of coil. Thanks for any help you can give me. Bob.

[Al_The_Man]

A few general guide lines if you have to rewind it, first see if you can remove the existing magneto coil from the armature, you may be able to use the old bobbin or will have to make one up from scratch, depending on how much the coil is impregnated with shellac etc, it may be impossible to unwind it to count the turns, if the old coil/bobbin is not re-usable, you could hacksaw it through and this will allow you to find out the amount of turns and the gauge of the wire.
Any motor rewind shop should be able to sell you the amount of enameled wire you need to rewind.
Mount the bobbin in a lathe chuck and using a very slow speed, with the new wire drum mounted on a shaft parallel to the chuck, carefully wind the coil evenly as possible.
After it can be dipped in shellac or ordinary varnish, if it is stationary coil.
Al.

[Geof]

Originally Posted by Al_The_Man .....Mount the bobbin in a lathe chuck and using a very slow speed, with the new wire drum mounted on a shaft parallel to the chuck, carefully wind the coil evenly as possible. After it can be dipped in shellac or ordinary varnish, if it is stationary coil. Al.

And if you don't have a lathe but have access to a sewing machine tape the bobbin to the flywheel at the back end and turn it that way. I found it even better than a lathe because it had the foot speed control.

[Al_The_Man]

Originally Posted by Geof And if you don't have a lathe but have access to a sewing machine tape the bobbin to the flywheel at the back end and turn it that way. I found it even better than a lathe because it had the foot speed control.

Just make sure SWMBO is out at the time.
Al.