Joined: 20 Jun 2009 Posts: 131 Location: Skipton, North Yorkshire
Posted: Tue Jul 02, 2019 8:19 am Post subject:
So after my fan refurb the car went straight off to the paint shop for some tidying up.
I therefore did not realise my alternator was not charging my battery. The battery light is not coming on but checking the voltage at the battery with the engine running im only seeing 12v.
So i need to whip the alternator off and see if i also have got my wires crossed!
Or could it be a faulty voltage regulator which i fitted? Its marked up as a Beru part bit it was very cheap off the internet. You do hear of fake components being sold.
So to clarify, the blue wire goes to the insulated terminal and the brown wire to the alternator chassis?
But shouldnt my battery warning light be on ??
Cameltoe & Heel Barcelona
Joined: 26 Jan 2009 Posts: 1327 Location: Preston - Lancs
Posted: Tue Jul 02, 2019 10:08 am Post subject:
Hi there, I had the same issue after my rebuild, the alternator not charging the battery. It's unlikely to be your new regulator, it's more likely to be the alternator itself.
I took mine to a local specialist and he diagnosed an issue with the rectifier, swapped it out for a new one, cost circa £100. Put it back in and all was well.
Mine did cause the battery light to illuminate however.
Trev
andyobro Silverstone
Joined: 02 Nov 2007 Posts: 147 Location: Poole
Posted: Tue Jul 02, 2019 10:13 am Post subject:
Oilline wrote:
So after my fan refurb the car went straight off to the paint shop for some tidying up.
I therefore did not realise my alternator was not charging my battery. The battery light is not coming on but checking the voltage at the battery with the engine running im only seeing 12v.
So i need to whip the alternator off and see if i also have got my wires crossed!
Or could it be a faulty voltage regulator which i fitted? Its marked up as a Beru part bit it was very cheap off the internet. You do hear of fake components being sold.
So to clarify, the blue wire goes to the insulated terminal and the brown wire to the alternator chassis?
But shouldnt my battery warning light be on ??
You are correct on which wire should be where, the wires on mine naturally sat the other way round when I fitted it, hence my mistake. I think the battery light was on when I had my wires crossed, but not 100% sure now.
Edit, just reread my post when I made the mistake, I think I would have mentioned the battery light, so I don't think it cam on with the wires swapped, but not 100% sure, sorry i can't be definite on that point. _________________ 993 Carrera
www.instagram.com/993andy
Kat1 Monza
Joined: 04 Nov 2010 Posts: 167 Location: Ely, Cambs
Posted: Tue Jul 02, 2019 10:57 am Post subject:
Do these pics help?
Oilline Silverstone
Joined: 20 Jun 2009 Posts: 131 Location: Skipton, North Yorkshire
Posted: Wed Jul 03, 2019 6:47 am Post subject:
So was my own stupid fault. Found the 8mm nut securing the main power lead rattling around inside the plastic end cap ! I mustn’t of tightened it up when I put it back together after doing the fan.
Charging now but only 13v on tick over. I have a single pull conversion so alternator running slower than standard so maybe that’s why ?
andyobro Silverstone
Joined: 02 Nov 2007 Posts: 147 Location: Poole
Posted: Wed Jul 03, 2019 12:01 pm Post subject:
Oilline wrote:
So was my own stupid fault. Found the 8mm nut securing the main power lead rattling around inside the plastic end cap ! I mustn’t of tightened it up when I put it back together after doing the fan.
Charging now but only 13v on tick over. I have a single pull conversion so alternator running slower than standard so maybe that’s why ?
Ya wally I have single pulley conversion too, I haven't checked to see what it charges at at idle, I may get chance tonight. _________________ 993 Carrera
www.instagram.com/993andy
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I have single pulley conversion too, I haven't checked to see what it charges at at idle, I may get chance tonight.