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Magneto

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Sammy in Kansas

Member
I have two mags that I would like to know what they fit. One is a American Bosch that is hot and has a repair tag and the number on mag of MJC4/2C-301 and the second mag is just a nos that insides has been removed, so is housing and new cap. It is a Wico model XB spec number is XB4016 and serial number of 007908.
Any help on what they may fit would be very much appreciated.
 
The Wico XB is NOT a Magneto, its a battery powered coil distributor ignition, although it looks similar to a Wico Model XH Magneto. They were used on some styled John Deere Model B Tractors late forties vintage.

John T
 
I have not pulled the cap off but it is so light weight and spins so freely, I assumed the insides were missing. I do not have a way to post pictures, but the cap has 4 wire insert area for like a 4 cyc???
 
Sammy,The Wico XB4016 Is a 6volt distributor for a 4 cylinder engine with a built in ballast resister.I believe Caterpillar gasoline engines used them. The 2 cylinder Wico XB would be a XB2xxx.The points ,condenser and coil is the same in both units.The coils in the XB are kind of hard to find.
 
Yes, they made them for 2 and 4 cylinder engines and as I said were used on 2 cylinder John Deere B's.

They are light weight and spin easy as theres no impulse spring assembly with a tight spring that winds up hard/tight.

Inside the brown plastic/phenolic input terminal board theres a small internal ballast resistor and if used on a 12 volt tractor an additional external ballast resistor is required to reduce 12 volts to their required 6 volt input

John T
 
I pulled the cap off and this unit looks like brand new old stock inside and out. Any idea on best way to describe this unit on ebay and a starting no reserve price??
 
I pulled the cap off and this unit looks like brand new old stock inside and out. Any idea on best way to describe this unit and a value
 
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