Andrew, Escorts are like that, that if the Alt Bulb is blown (in the dash), your alt won't work, i thought my alt was stuffed because the light didn;t work but it turned out to be the bulb. the bulb is part of the elect circuit for the alt.
Heath ----- Original Message ----- From: GREENBURY, Andrew Robert <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, October 10, 2002 10:11 AM Subject: Re: alternator question - SOLUTION! > Hi list, > > Thanks heaps to everyones ideas recently of why my alternator light > wouldnt go out until the engine revved to 2000 rpm or so. Based on this > discussion I did some tests on the alternator operation and its wiring > (its a bosch IR alternator, replacing a lucas internally regulated alt the > PO had wired up, with the external reg removed). > > It turns out the problem was the actual indicator light!! It appears the > alt requires an indicator globe of sufficient current draw/wattage to be > connected, perhaps to tell the alternator circuit that the engine is about > to be started. Without this initial current draw of sufficent size (about > .2A) when turning the key, the alt doesnt "know" the engine is on, so the > alternator doesnt kick in, and the light stays on. But then you hit 2000 > rpm and this must be a failsafe trigger to turn on the alternator, for > example, when the indicator light blows. > > I had no idea the actual light would have any effect on an alternators > operation, so it never occured to me to mention I had been playing > around with replacing my warning lights with LEDs! It turns out because > the LED draws 1/20th of the current of the globe, the alternator didnt > know the engine had been turned on until it hit 2000 rpm as above. > > So for those whos alternators are doing the same, check that the indicator > light wire to be the back of the alternator is of a good connection, same > at the connection to the instrument panel, and that the globe hasnt been > changed to a lower wattage (at least 2W). > > Thanks for the help and sorry for the length > Andrew > > --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ ---------------------------------------------------------------------
