car alternator :/

joemc · Borekit Bruiser Joined: 24 Apr 2016 Karma :

Ok so im driving along in my heap of turd 2002 fiesta, my battery light comes on, from past experience on my mazda 6 this means the alternator isnt doing its job. A day later i drive to morisons, nip in, come back to the car and BAM, batterys flat as a fart. All so far is perfectly normal, so i get our lass to push as i bump start the car in front of a few amused shoppers. Anyway, car starts, battery light didnt come back on, drove for half an hour, parked car on a hill. Turn ignition off, restart and the car starts fine. So.. the bump start has seemed to "fix it". Any ideas as to what this could be?
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Nsr 125 1990 - written off
Bandit 600 - Alive (for now)

mrbox · Wonderwall Joined: 30 Nov 2013 Karma :

CaNsA · Super Spammer Joined: 02 Jan 2008 Karma :

J.M. · World Chat Champion Joined: 27 Mar 2011 Karma :

When one of my old bikes was having intermittent charging issues I hooked up a voltage meter to see what the bike was doing whilst I was riding it.

Turned out that the reg/rec was dying and sometimes it was putting out the correct voltage, and sometimes it was putting out like 8v. I replaced the reg/rec and no problems after that.

I think most modern cars include the reg/rec within the alternator housing, so not really as simple to swap, but could be a sign it's on its way out?
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2004 R1 & 2018 XSR900

yen_powell · World Chat Champion Joined: 22 Jun 2008 Karma :

I had a new 2001 fiesta and the battery charging fault in the first year of ownership was caused by a broken earth strap.
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uberkron · Crazy Courier Joined: 12 Nov 2012 Karma :

Your alternator is nearly out of brushes. If you are so inclined you can remove the alt and rear brush it. I think your ecu controls the alternator.
It contains no regulator of its own
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joemc · Borekit Bruiser Joined: 24 Apr 2016 Karma :

New alternator jobby?
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Nsr 125 1990 - written off
Bandit 600 - Alive (for now)

Minty · World Chat Champion Joined: 23 Dec 2005 Karma :

joemc · Borekit Bruiser Joined: 24 Apr 2016 Karma :

[/quote]

She can push cars unaided. Do not want.[/quote]

I gave her too much credit, i was also hanging out of the door pushing 😂
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Nsr 125 1990 - written off
Bandit 600 - Alive (for now)

Minty · World Chat Champion Joined: 23 Dec 2005 Karma :

Ok, pics accepted then.
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