Guys 1st Post so be gentle
I have a Bond Mk2 with a 2500 engine that's been upgraded to Alternator. Simple issue being that the ignition Light is full on with ignition switch on and when the engine is started it goes dim but its still on. when its fitted into the speedo behind the red gem, it can only be seen at night or I shade the front of the speedo. Its been like this for months and seems to be charging as the volt gauge is showing 12.5 -14 volts running, no problem with flat batteries all over the winter with very little running.
I'm sure I have seen a check for the alternator with a separate lamp, I have 2 connections on the back. Any simple explanation of how this lamp works.
I Have a switched white going to the lamp with 12V then a brown and yellow on the other side that disappears into the loom.