defender dinky Posted February 4, 2010 Share Posted February 4, 2010 hi all, electical problem on my rebuild defender 90 with a 200tdi disco engine,problem is wired alternator back up, on doing so crossed spanner on terminals and big blue flash jumped out my skin and now battery light stays on when ignition is turned off, being informed by forum member that diodes knackered, or igntion wiring incorrect, checked ignition everything fine there,don't know anything about diodes so wondering if i could fit my spare alternator which came off the old td engine, as anybody done this and has any pictures as regards wiring set ups i would be very grateful cheer's defender dinky Quote Link to comment Share on other sites More sharing options...
western Posted February 4, 2010 Share Posted February 4, 2010 it should fit OK, most likely fried the rectifier diodes in the now dead alternator, take it to a auto electrical place 7 have them test it on their rig/bench, it should be repairable. thick brown cable to the B+ terminal brown/yellow [charge light] to the D+ or IND or WL terminal the items in bold should be marked on the alternator rear cover/casing. Quote Link to comment Share on other sites More sharing options...
defender dinky Posted February 4, 2010 Author Share Posted February 4, 2010 it should fit OK, most likely fried the rectifier diodes in the now dead alternator, take it to a auto electrical place 7 have them test it on their rig/bench, it should be repairable. thick brown cable to the B+ terminal brown/yellow [charge light] to the D+ or IND or WL terminal the items in bold should be marked on the alternator rear cover/casing. hi could my problem be a earth?? should there be an earthwire on the alternator if so where should it go, i have an earth from the belhousing to chassis transferbox to battery should i have more cheer's defender dinky Quote Link to comment Share on other sites More sharing options...
western Posted February 4, 2010 Share Posted February 4, 2010 no earth wires on alternator. there should be a earth cable from the alternator/PAS bracket [below the alternator bolts] the earth cable should be attached to the chassis bracket of the left engine mounting. Quote Link to comment Share on other sites More sharing options...
tychoS Posted February 5, 2010 Share Posted February 5, 2010 hi all, electical problem on my rebuild defender 90 with a 200tdi disco engine,problem is wired alternator back up, on doing so crossed spanner on terminals and big blue flash jumped out my skin and now battery light stays on when ignition is turned off, being informed by forum member that diodes knackered, or igntion wiring incorrect, checked ignition everything fine there,don't know anything about diodes so wondering if i could fit my spare alternator which came off the old td engine, as anybody done this and has any pictures as regards wiring set ups i would be very grateful cheer's defender dinky Try swapping the voltage regulator unit, which consists of the diodes, the brushes etc. Last time I bought one it cost me slightly less than £10. With the alternator out of the vehicle it took me a couple minutes to swap the regulator unit. I've seen two different types of regulators on Land Rover alternators on NA/TD/200tdi types of engines. It the alternator on the table, you will easily see which type you have. In some cases it's hidden under a plastic cover covering one end of the alternator. (Links are only to get images so you know what to look for, I have no connection with the actual auctions) : http://cgi.ebay.de/Lichtmaschinenregler-Regler-Ford-Fiesta-Rover-Neu_W0QQitemZ360189261761QQcmdZViewItemQQptZAutoteile_Zubeh%C3%B6r?hash=item53dcf3f7c1 http://cgi.ebay.de/Lichtmaschinenregler-BMW-AUDI-CITROEN-FERRARI-FIAT_W0QQitemZ360223478099QQcmdZViewItemQQptZAutoteile_Zubeh%C3%B6r?hash=item53defe1153 Quote Link to comment Share on other sites More sharing options...
crwoody Posted February 5, 2010 Share Posted February 5, 2010 One other small (BIG) point - Always disconnect the battery negative lead before touching alternator or starter motor wiring, or any other permanently live wiring for that matter. It could save you a lot of trouble & expense. Quote Link to comment Share on other sites More sharing options...
ronancounty Posted February 5, 2010 Share Posted February 5, 2010 Im doing the same converition right now.The td alternater wont work because the tension bracket nut is in a different place and the 200 alt revs faster because of the pas pump drive ratio, it could burn out or go on fire. the problem i have is , there are 3 wires on the old plug &a spade clip and i can only see 3 points of connection on the 200 alternator. can anyone tell me where all 4 wires go on the 200 alt.? Quote Link to comment Share on other sites More sharing options...
western Posted February 5, 2010 Share Posted February 5, 2010 What wire colours ? my 110 was a TD too, didn't have any problem connecting the alternator up to the TD engine loom. Quote Link to comment Share on other sites More sharing options...
ronancounty Posted February 6, 2010 Share Posted February 6, 2010 i have 2 heavy brown 1 light brown wire and 1 light yellow/brown wire .i understand the heavy brown go to b+ the brown/yellow goes to d+/ind/wl . what about the light brown.? Quote Link to comment Share on other sites More sharing options...
western Posted February 6, 2010 Share Posted February 6, 2010 depends where the other end of the light brown ends, it might be for a Rev Counter[if one is fitted] then it needs to go on the 'W' terminal. Quote Link to comment Share on other sites More sharing options...
defender dinky Posted February 6, 2010 Author Share Posted February 6, 2010 depends where the other end of the light brown ends, it might be for a Rev Counter[if one is fitted] then it needs to go on the 'W' terminal. hi,i have 2 thick brown wires 1 brown/yellow wire, do the 2 thick brown wires go to the same terminal on the alternator meaning b+ thin brown/yellow to d+ because i have three terminals stud type, at the moment i have thick brown going to b+ thick brown going to w thin brown/yellow going to d+ battery light stays on, when i try ignition it goes out but i have no power to turn car over need help need dinky for monday cheer's defender dinky Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted February 6, 2010 Share Posted February 6, 2010 (edited) The two thick browns should go to the same B+ terminal, and the brown/yellow to the smaller terminal. The 'W' terminal is not generally used, but is for a rev counter if fitted. Edit: Corrected information Edited February 6, 2010 by Retroanaconda Quote Link to comment Share on other sites More sharing options...
western Posted February 6, 2010 Share Posted February 6, 2010 The two thick browns should go to the same D+ terminal, and the brown/yellow to the smaller terminal. The 'W' terminal is not generally used, but is for a rev counter if fitted. B+ is battery connection thick brown cable to the B+ terminal brown/yellow [charge light] to the D+ or IND or WL terminal the items in bold should be marked on the alternator rear cover/casing. Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted February 6, 2010 Share Posted February 6, 2010 My mistake, I was going by this: http://forums.lr4x4.com/index.php?showtopic=12692&view=findpost&p=132542 But fair enough Quote Link to comment Share on other sites More sharing options...
defender dinky Posted February 6, 2010 Author Share Posted February 6, 2010 The two thick browns should go to the same D+ terminal, and the brown/yellow to the smaller terminal. The 'W' terminal is not generally used, but is for a rev counter if fitted. hi, D+ or B+ i think western said B+ if it's right you have just got me out the ****e big time being looking for bad earths for three days cheer's defender dinky Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted February 6, 2010 Share Posted February 6, 2010 B+ is right, seems the source I searched up was wrong. My mistake B+ - two thick browns to battery (they go via starter) Quote Link to comment Share on other sites More sharing options...
defender dinky Posted February 6, 2010 Author Share Posted February 6, 2010 The two thick browns should go to the same D+ terminal, and the brown/yellow to the smaller terminal. The 'W' terminal is not generally used, but is for a rev counter if fitted. Quote Link to comment Share on other sites More sharing options...
western Posted February 6, 2010 Share Posted February 6, 2010 Just added a diagram from a vehicle electrics book I have, mian feed from Alt to Battery is B+ glad it helped Quote Link to comment Share on other sites More sharing options...
defender dinky Posted February 6, 2010 Author Share Posted February 6, 2010 Just added a diagram from a vehicle electrics book I have, mian feed from Alt to Battery is B+ glad it helped hi, just change wires over on alternator battery light went off well done lads, but still gotignition lights but no power to turn engine cheer's defender dinky Quote Link to comment Share on other sites More sharing options...
western Posted February 6, 2010 Share Posted February 6, 2010 hi, just change wires over on alternator battery light went off well done lads, but still gotignition lights but no power to turn engine cheer's defender dinky are the cables to the starter connected to the soleniod not the starter motor ? does the soleniod click when you try to start the engine ? Quote Link to comment Share on other sites More sharing options...
defender dinky Posted February 6, 2010 Author Share Posted February 6, 2010 are the cables to the starter connected to the soleniod not the starter motor ? does the soleniod click when you try to start the engine ? hi, four brown wires go to starter jioned in pairs, one white/red goes to spade connector, thinking about it can't remember if i connected wires back on ignition barrel have a look tomorrow, cheer's defender dinky Quote Link to comment Share on other sites More sharing options...
western Posted February 6, 2010 Share Posted February 6, 2010 that would prevent it starting. Quote Link to comment Share on other sites More sharing options...
ronancounty Posted February 8, 2010 Share Posted February 8, 2010 OK , i wired up my alternator it seems to work ok except the charge light glows when running , whats this about? and what can i do about it.? Quote Link to comment Share on other sites More sharing options...
western Posted February 8, 2010 Share Posted February 8, 2010 Either a poor rectifier pack, faulty diode or worn brushes, time for a vist to a auto electrician, have the test & rectify any faults. Quote Link to comment Share on other sites More sharing options...
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