After some messing about, fitting twice and managing to burn the main cable (looks like it was shorting somewhere). Changed cable re-fitted up and running, checked voltage seemed ok at 12.7. Now battery light stays on?
Regulator is probably knackered And the shorting was probably the stuff too long on the back of the alternator?
Tried 2 regs, looks like trying a third? Edit- don't know if it helps but it was putting out 12.7 on D+
Voltage is too low to charge the battery. Do you get 12.7v on D+ with the engine running and with it off? My guess is the alternator is knackered either because of, or causing the burnt-out cable.
Looks like its coming off again . Checked with the engine running, and the plug off the reg. Edit - thanks for the replies
Sorted . If I give advise on things like this I always say it's a loose connection. And what was it At least I'm getting faster at changing it
I put a new connector on the alt cable and must not have crimped it right and as I put it back together it came loose - something you can't find without stripping it all down again.
If the cable that came loose went to the battery, wouldn't have caused damage (apart from a great shower of sparks). Sound like you're sorted now. What kind of output voltage are you getting?
In that case you can sit in the corner whilst you make your mind up Knowledge isn’t power But it does save you a lot of money and giving it a go the experience makes you stronger