Re: Zener earthing

Posted by Hendred on Apr 10, 2013; 8:29pm
URL: http://silk-motorcycles.221.s1.nabble.com/Zener-earthing-tp5000784p5000787.html

Paul,

Only had charging problems after inadvertently disconnecting the lead to the zener!  I'm gad I have an ammeter fitted, the 3AW relay just adds another complication.  Did you fit an original type 3AW relay or a modern electronic equivalent? The original is really a mechanical relay. The relay seems to have been used on early Lucas car alternators to supply the DC field current on start up.  Norton used the same relay on later Commandos for the same purpose as Silk and connected it to the AC side of the alternator. The original mechanical type relay works ok on AC but it would be interesting to know if the electronic type does as well.