steve8274
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| posted on 25/11/11 at 09:47 PM |
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alternator test
hi all
is there a way i can check my alternator?
my dash warning light is staying on and it only just started to do it.
only just completed my wiring so not sure if its alternator or my wiring!!!
thanks
steve
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britishtrident
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| posted on 25/11/11 at 09:54 PM |
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Start the engine check the voltage across battery at 2000 rpm shouldbe 13.4v to 14.9v
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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BaileyPerformance
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| posted on 25/11/11 at 09:54 PM |
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Hi,
You can check if its charging by measuring the voltage across the battery with the engine running, Should be 13.5-14.4v.
If below 13.5v, rev the engine 10 1500rpm and see if the voltage goes up, if not you have a fault.
Check the alternator wiring, normally there will be 1 thick wire that goes to the battery + (somtimes via the starter) and 1 thin wire that goes to
the dash warning light. If you disconnect this thin wire with the ignition on the dash light should go out.
Has your alternator got more that 2 wires / connections? jap alternators are alittle different.
If the wiring looks OK the alternator is knakered!
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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steve8274
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| posted on 25/11/11 at 09:58 PM |
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thanks for prompt replies
i did put voltmeter across terminals but never revved it so will try again.
alternator has 2 wires. 1 thin goes to dash and other goes to starter motor
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britishtrident
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| posted on 25/11/11 at 10:59 PM |
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Should be to the battery connection on the starter.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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matt_gsxr
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| posted on 25/11/11 at 11:05 PM |
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quote:
Originally posted by britishtrident
Should be to the battery connection on the starter.
Also check the earth is good.
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