Re: 1938 Packard Dynamo carbon brushes replacement

Posted by John Harley On 2016/6/14 22:00:55

Hans/BDC


Cars with generators come both ways, positive and negative ground. The generator doesn't care, there is a procedure for setting the polarity after working on the charging system. This is described on other threads on this website, use the search function.

In a generator the rotating member,":armature" is a series of copper coils wound around a ferrous core that rotates inside a series of magnets producing direct current. In an alternator the magnet is the rotating member. The current from a rotating magnet reverses the direction of the current in the coils as if routes inside them. The current then passes through diodes i to sort this out into one polarity. Clear as mud?

I suspect my friend Owen Dyneto may have the reference materials to answer your parts question. He is currently enjoying the Packard Club national meet in Traverse City, Michigan, so I would expect a response after this coming weekend

Regards

John Harley