240 Alternator Repair

When the Bosch alternator in your Volvo 240 series fails there is a high probability that it can be easily repaired.These alternators use an"externally mounted internal regulator." This small assembly which consists of a solid state 14.4 volt semiconductor and a pair of brushes regulates the output current going to the battery. The brushes will wear down, effectively disconnecting the regulator. When if fails, and it eventually will, the output voltage drops from 13.8-14.4 volts DC to slightly less that the voltage of the battery with the engine off. Remove the two screws that attach the regulator to the rear of the alternator, remove, and check the brushes. if they're worn, replace either the brushes or best is to locate a self serve parts yard and get a better used regulator. Install it and you should be ok.Time to remove, examine, and reinstall the regulator assembly should be 20 minutes or less.