Muddylandy Posted September 5, 2008 Share Posted September 5, 2008 Guys, my head now hurts. A quick update, I have a ex mod 110 with a 200tdi with charging issues. I have replaced the alternator and battery and still no charge! I have a voltmeter function on my radio display which suggests the voltage output is almost nothing. The symptoms started on the way to Billing when it was reading 15 - 16 volts on the way there and on the way back almpst nowt and the battery ran flat. Sorry to ask for help but I am pulling my hair out! Cheers Quote Link to comment Share on other sites More sharing options...
Eightpot Posted September 5, 2008 Share Posted September 5, 2008 Is the engine earth strap well connected and in good order? Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted September 5, 2008 Share Posted September 5, 2008 Do you have the warning light circuit wired correctly? Do you have a good earth? does the engine start ok? Are the new battery and alternator known good? Quote Link to comment Share on other sites More sharing options...
Eightpot Posted September 5, 2008 Share Posted September 5, 2008 If you can bump start it, you could try putting a jump lead on the battery negative and on the engine block - see if the voltage starts picking up - if it works its your earth strap, if not a grown up will be along in a minute.. Quote Link to comment Share on other sites More sharing options...
V8 Freak Posted September 5, 2008 Share Posted September 5, 2008 I can help a little with info guys.... Alternator new.. Installed last night. Mark then tried another battery and got the same results. I don't know that much about either battery. I'm assuming he has good earth because it starts fine when jumped. Can I test the excite lead by running wire from battery live to the pole on the back of the alternator one the engine is running ? If needed, I can run over with a known good bettery as well for another test. Any more suggestions and thanks in advance ? Neil Quote Link to comment Share on other sites More sharing options...
GBMUD Posted September 5, 2008 Share Posted September 5, 2008 On a 200Tdi the starter has it's own earth. It is not unknown for the alternator to be insulated from the engine by corrosion on the mountings. Try again with a jump lead between the alternator body and the battery neg. Check for continuity and good clean physical connection between the battery live and the starter solenoid and the solenoid and the live on the alternator. Check continuity on the battery light circuit. Chris Quote Link to comment Share on other sites More sharing options...
Muddylandy Posted September 5, 2008 Author Share Posted September 5, 2008 Car jump starts with no problems, I will have a go with the jump leads isolating earth faults if and when it stops raining. I will update when I know more. Cheers guys and hope all have a good weekend. Quote Link to comment Share on other sites More sharing options...
defender dave Posted September 5, 2008 Share Posted September 5, 2008 Guys, my head now hurts. A quick update, I have a ex mod 110 with a 200tdi with charging issues. I have replaced the alternator and battery and still no charge! I have a voltmeter function on my radio display which suggests the voltage output is almost nothing. The symptoms started on the way to Billing when it was reading 15 - 16 volts on the way there and on the way back almpst nowt and the battery ran flat. Sorry to ask for help but I am pulling my hair out! Cheers hi there you could see if the big brown wire from the alternator is connected also the small wire next to it only i had that happen to my it was the small wire that had broke Quote Link to comment Share on other sites More sharing options...
GBMUD Posted September 5, 2008 Share Posted September 5, 2008 when it stops raining. You are not in any hurry then? Chris Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted September 5, 2008 Share Posted September 5, 2008 Could be a broken feed wire from alt to battery ? Mo Quote Link to comment Share on other sites More sharing options...
western Posted September 5, 2008 Share Posted September 5, 2008 should be 2 thick earth cables 1 from battery -ve terminal to gearbox/transfer box joint bolt on left of vehicle 1 from power steering/alternator mounting bracket to the chassis part of the left engine mounting, so it jumps the rubber bush mount. Quote Link to comment Share on other sites More sharing options...
Muddylandy Posted September 9, 2008 Author Share Posted September 9, 2008 should be 2 thick earth cables1 from battery -ve terminal to gearbox/transfer box joint bolt on left of vehicle 1 from power steering/alternator mounting bracket to the chassis part of the left engine mounting, so it jumps the rubber bush mount. I have checked and tightened earths and I am now seeing 13.5v accross the battery is this ok? I thought it should be more like 14-14.5 thanks in advance chaps. One other small issue(could be quite big actually) my water pump developed a leak and I overheated last month. Water pump changed and refitted but I am concered all is not well as temp guage sits between half and three quaters and the coolant hoses feel very firm and bloody hot after a run of say 10 miles. I cant see ant water in oil or oil in water am I being paranoid. Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted September 9, 2008 Share Posted September 9, 2008 Engine off - 12.5v Engine 2000 rpm, no load - 14.4 Engine 2000 rpm, load - 13.8 Or there abouts, certainly less than 13.8 or more than 14.4 with the alternator running is bad news. Quote Link to comment Share on other sites More sharing options...
zim Posted September 10, 2008 Share Posted September 10, 2008 I have checked and tightened earths and I am now seeing 13.5v accross the battery is this ok? I thought it should be more like 14-14.5 thanks in advance chaps.One other small issue(could be quite big actually) my water pump developed a leak and I overheated last month. Water pump changed and refitted but I am concered all is not well as temp guage sits between half and three quaters and the coolant hoses feel very firm and bloody hot after a run of say 10 miles. I cant see ant water in oil or oil in water am I being paranoid. your coolant system is not related to your charging system. 13.5 is your alternator charging, maybe a little lower than what is liked but it is working what does your battery read with the engine off (and been off for a little while - 5 / 10mins). G Quote Link to comment Share on other sites More sharing options...
Aragorn Posted September 10, 2008 Share Posted September 10, 2008 13.5v wont charge the battery properly, simply not enough volts you need 13.8 as a minimum for the battery to take a charge (and feeding it 13.5v for a long time wont do it any good either), ideally you want 14.1v for a 6 celled lead acid battery. Anything over 14.4 will damage the battery too, which might explain the problem if you were seeing 15-16v before the battery died. It might just be that the alternator cant supply enough current at idle RPM's so try bringing the revs up to 2krpm and see if the voltage climbs to 14.1ish Quote Link to comment Share on other sites More sharing options...
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