Richard Spandit Posted July 31, 2006 Share Posted July 31, 2006 Just bought a Defender 90 200tdi and was made aware of the fact that the charge light was on constantly. Was assured it was only a case of tightening the belt and it would be fine. Got the car (?) home and checked the belt tension - seemed OK but tightened it a little to make sure. Charge light is quite bright at idle but dims as the revs increase (never extinguishing completely) I presume the battery is charging as I've had the vehicle for a few days now and the battery hasn't gone flat. Is my alternator on the way out, or just the rectifier pack? If so, where can I source a new one from? Richard Quote Link to comment Share on other sites More sharing options...
BogMonster Posted July 31, 2006 Share Posted July 31, 2006 Probably the regulator but you can check it with a digital voltmeter - voltage at the battery should be about 14.2-14.4V with a few revs on (say 2000rpm) if it is less than 14V then there is a problem and if less than 13V then it is definitely knackered. Not sure at what voltage the light comes on though. Personally I can't be bothered fixing things like alternators, new ones aren't that expensive and if the regulator is on the blink there is a good chance that bearings and things will be past their best as well. But many people do recon them to save a few £ Quote Link to comment Share on other sites More sharing options...
Gromit Posted August 3, 2006 Share Posted August 3, 2006 Personally I can't be bothered fixing things like alternators, new ones aren't that expensive and if the regulator is on the blink there is a good chance that bearings and things will be past their best as well. But many people do recon them to save a few £ I had something similar-ish to your problem. My alt needed a bit of a rev to excite and start charging in the mornings. The amount of revving needed increased until it stopped charging one day. I whipped off the alt and removed the regulator/brush pack from the back of it; only one or 2 screws IIRC. My local mechanic donated a regulator from an old tractor alt and it's still going strong. Worth looking at and alot cheaper than buying a new one. Quote Link to comment Share on other sites More sharing options...
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