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post #4 of (permalink) Old 16th July 2006
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You need to check a battery under load.A seemingly perfectly healthy battery could show low voltage when the lights are on mainbeam....

Try putting a multimeter accross the battery with the ignition on,the engine not running,and the lights on full beam.If the battery stays around 11-12 volts,then it's OK.Below 11,then it's past it's best.Also check the alternator is charging(around 14 volts with engine running).

As Chris rightly points out,double check any earth connections,there are well known problems with corroded leads and connectors and this will give similar symptoms.

If all seems well,then suspect the starter motor.As with most things,it's a process of elimination,although now you have the starter out,I'd be tempted to change it anyway as sods law dictates that if you reuse it,2 weeks down the line it will go t#ts up!!.

Good luck,and keeps us informed on developments.

I'd rather push my Alfa than drive a BMW....
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