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I've been having a problem with my Starlet since I swapped the engine in it. Can't seem to get it to charge, have tried three different alternators, a new battery & still can only get 10.6 volts at the alternator.
One thing I have noticed is the battery light isn't on when the ignition is on, which I believe may well be related, but don't know how!
Anyone got any ideas what I can check/try? As my electrical knowledge isn't exactly great.
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does the engine have an earth strap?
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Someone just shot the elephant in the room. |
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Yes I've checked the earth, there's one from the engine & one from the 'box
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purplevanman
Posted a lot
Way too orangey for crows
Posts: 3,829
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Sounds like the wire to the dash light is not connected or the bulb is blown, this will stop the alternator getting exited and putting out a charge.
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Alternator/charging issuesHARDCORE
@hardcore
Club Retro Rides Member 190
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Sounds like the wire to the dash light is not connected or the bulb is blown, this will stop the alternator getting exited and putting out a charge. .. which can be checked when you first turn the key (before you start it) as presumably it lights up? |
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stealthstylz
Club Retro Rides Member
Posts: 14,845
Club RR Member Number: 174
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Alternator/charging issuesstealthstylz
@stealthstylz
Club Retro Rides Member 174
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I'm sure if you touch the small wire for the warning light onto the alternator body the light will come on if the alternator is knackered?
Matt
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purplevanman
Posted a lot
Way too orangey for crows
Posts: 3,829
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I'm sure if you touch the small wire for the warning light onto the alternator body the light will come on if the alternator is knackered? Matt I think thats right, A positive feed from the battery goes to the dash bulb then from there to the alternator where it finds an earth and exites the alternator into charging, if you earth the wire at the alt end it should light up, if it doesn't then the bulb or circuit is broken, if it does then it is the alt ... |
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Dec 10, 2009 10:00:13 GMT
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Have you checked for slipping belt?
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Dec 10, 2009 10:49:17 GMT
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I'll have a look at the feed to the bulb on the dash, as it isn't lighting up with the ignition on, so could be the root cause of it all.
It's not the belt, that's tight enough & I've checked the voltage at the alternator itself, so it seems as though it's not being excited into working. Job for Monday when I'm not at work.
Thanks for all your help
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bortaf
Posted a lot
Posts: 4,549
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Dec 10, 2009 14:26:31 GMT
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change the bulb if it doesn't light the alt wont work no matter what you try  |
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R.I.P photobucket
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Dec 10, 2009 17:15:40 GMT
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What they said - it'll be the bulb or bulb circuit. My mini didnt have one wired up at all - somehow I managed to drive it 120 miles with the electric fan and headlights on before it all styarted going wrong. I've got no provision in the dash for a bulb, so just bridged the wire with a 200 ohm resistor (1/2 watt) to a switched ignition feed.
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