does anyone have a wiring diagram on how to remove the voltage reg on a series 2a, i have replaced the petrol engine with a perkings 2ltr. the battery is showing 13.8v with no load and 13.3 with lights on but the charge light stays on and gets brighter if i rev the engin but the headlights dont get brighter and the battery stays on 13.3 if you can make head or tale of what is happening please help.