New van , new electrical problems

[Professor plumb]

Afternoon all, owned an air cooled for years and always found great advice on here. Recently bought another t25 an lle 1.6 td needs a bit of love but structurally sound , mechanics also ok as had a new engine 50,000 miles ago. Electrics not so good , been usable up to now but this weekend started ok , then rev counter stopped battery light on drove ok , then flat battery. I’m not so good on electrics so any advice is gratefully received, many thanks in advance
Tony

[Stesaw]

Alternator or its wiring maybe if your battery light came on then you got a flat battery. Not so hot on diesel wiring sadly.

[Professor plumb]

Yes that’s where I was going to look , it had a new alternator just before I got it, I’ll check all the connections tomorrow when I can see.
Totally daft question is the rev counter wired from the alternator
Tony

[Mocki]

The alternator supplies the signal to the rev counter from the “W” connection
The blue wire from the alternator triggers the charge

I would suggest first inspecting the wiring loom to the alternator , checking for bad , broken or damaged connections and loom
And then checking the alternator hasn’t failed . Could just be the brush pack , which is a easy , cheap and quick fix for about £13 and ten mins with a Philips screwdriver

[Professor plumb]

Many thanks I stupidly assumed that new wouldn’t fail
I should know better , I’ll have a good look tomorrow and I’ll let you know
Many thanks again
Tony

[Professor plumb]

Hi all checked connections all seem ok , jumped started van and tested , got 12 v at battery, so I think I’ll try new brush pack and let you know. Thanks for your help
Tony

[Professor plumb]

Good news new brush pack fitted , charged battery van starts , charging properly , light out , rev counter working, many thanks to all. Thanks also to brickwerks for fast delivery of part