14-11-14, 09:53 AM
Initially check the alternator brushes, they wear. At tick over you should get around 13V across the battery, rising towards 14V when revved. Hope this helps. Also check condition of the commutator as poles can get worn, hence not giving a good contact with the brushes. A Haynes manual should have all the tests that need to be carried out on the charging circuit. Check battery plates aren't contaminated & electrolyte is good (should be no problem with new battery though). Alt' brushes are pretty cheap, Reg/rectifiers are expensive. Check the cheap option first. :rolleyes :rolleyes :rolleyes
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