Mud-club
Vehicle & Technical => Discovery => Topic started by: remmy7 on February 11, 2008, 19:53:44
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Hi all,
My V8 series 2 Disco is currently dead and lying 200 miles from home. The problem started on Friday night when the battery light came on (its a new battery) after 2 minutes or so it went out when I revved the engine. Then on Saturday morning I set out early hours on a deer Stalking trip. After a few miles I noticed that the battery light was on again but no amount of revving would extinguish it. Due to the time of morning lights heater etc were all on. After a few minutes the lights began to dim and the suspension lights came on followed by the autobox lights flashing followed by ABS light and others. Then the rev counter and speedo stopped working and I began to get a misfire. This all happened within a few minutes and I parked her up. Checking under the bonnet revealed nothing obvious and having been towed back to our digs by a friend we put jump leads on and every thing was fine although the battery light was still on. Alternator I thought and duly removed it to take home to get repaired. The auto electrician has had a look at it and reckons every diode has blown therefor he states he cannot repair it. A new one is obviously needed but I have been cautioned by the auto sparky that I should find the short that caused the problem first. This is where I am confused as if there was a problem elsewhere why has it not manifested itself by other means (eg blown fuse, something not working etc). The alternator had been squealing for sometime and had in the past been treated with copious amounts of wd40. I have stripped it myself and it was best described as moist also one of the brushes has jammed and is nearly gone although it still makes contact.
Anyone got any ideas as to what is going?
Cheers Remmy7
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Running with a sticky brush should just make it stop I wouldnt expect it to kill the Diode pack.
You didnt by any chance get the batter on backwards, even for a split second?
Ric
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Hi Rick,
No the polarity has never been reversed. However when taking the alternator off I took the prize for muppetry as I forgot to disconnect the battery. I had removed the bolts and eased off the belt before taking the instrument lead off before the main lead .as I lifted the alternator away from the engine the battery lead came into contact with the bracket with the usual spectacular result but it was for a brief millisecond and I dont think the alternator was still in contact with the engine.
pete
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Hi Rick,
No the polarity has never been reversed. However when taking the alternator off I took the prize for muppetry as I forgot to disconnect the battery. I had removed the bolts and eased off the belt before taking the instrument lead off before the main lead .as I lifted the alternator away from the engine the battery lead came into contact with the bracket with the usual spectacular result but it was for a brief millisecond and I dont think the alternator was still in contact with the engine.
pete
May have cooked something and/or killed some wiring.
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Hi all,
Troubles in obtaining an alternator saw the supplier giving me a 150amp job that was supposed to be for a 98-02 4.6 v8 Rangie. It looked identical and I have now fitted it and the Disco is now home with me. It would appear that I have no other issues with the electrics. As a footnote for anyone finding themselves in the same position as myself the alternator I sourced is half the price of a Landrover supplied one and is even cheaper than the one designated for the 4.0 v8 Disco. It makes me wonder how many other parts designated for the other rangerover/discovery models can be sourced cheaper than those intended for the V8 Disco. Perhaps another thread listing members experiences with interchangeable parts that could be searched for reference is a possibility.
Cheers all, Remmy7.