keithjh Posted February 2, 2006 Share Posted February 2, 2006 Hi All, The battery charge light is staying on till i give it a lot of revs then goes out, alternator is charging fine once light goes out, is a right in thinking the brushes are goosed or should i just change the alt? Regards Keith Quote Link to comment Share on other sites More sharing options...
AJL Posted February 2, 2006 Share Posted February 2, 2006 Hi All,The battery charge light is staying on till i give it a lot of revs then goes out, alternator is charging fine once light goes out, is a right in thinking the brushes are goosed or should i just change the alt? Regards Keith Check the connections and the earth otherwise its a new alternator i'm afraid Quote Link to comment Share on other sites More sharing options...
02GF74 Posted February 3, 2006 Share Posted February 3, 2006 how much is high revs? also have you checked belt tension? it is quite normal for alternator to start charging (lamp goes off) at around 1,000 rpm - but if you are having to go beyond 2,000 then that is not a good sign. Could be someting as simple as poor contacts so check & clean all connections and the brushes; if it is still there, you can use it but start putting pennies away for a replacement. Also put voltmeter to measure voltage when lam pis out to check it is not overcharging as they will cost you a battery as well (13.5-14.0 V is what is should give) Quote Link to comment Share on other sites More sharing options...
headhunter Posted February 3, 2006 Share Posted February 3, 2006 I have a low tension rev counter fitted, which is driven off the alternator feed. It does not show revs until the throttle is blipped then it shows 1000rpm. Once this has happened the rev counter will settle down to 800rpm on tickover. So below 1000rpm not a lot seems to happen from the alternator. John Quote Link to comment Share on other sites More sharing options...
simonr Posted February 3, 2006 Share Posted February 3, 2006 I would look at brushes, then regulator / brush pack (probably about £15 to buy). The fact that it is charging meand the rest of the alternator is fine. Si Quote Link to comment Share on other sites More sharing options...
keithjh Posted February 3, 2006 Author Share Posted February 3, 2006 Belt tension is fine contacts are fine i would guess the light goes at at around 12-1500 rpm, it carges at 14.1 volts at its max. Regards Keith Quote Link to comment Share on other sites More sharing options...
02GF74 Posted February 4, 2006 Share Posted February 4, 2006 Belt tension is fine contacts are fine i would guess the light goes at at around 12-1500 rpm, it carges at 14.1 volts at its max. Regards Keith doesn't sound like a problem to me. I can't you drive so the revs never go beyond that! Quote Link to comment Share on other sites More sharing options...
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