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lewain wrote:
I am getting about 19 volts on my volt gauge. Also tach works up to about 1400 rpm then dies. I am thinking rectifier. What do you guys think?
Rectifier converts AC voltage from your stator (alternator) to DC voltage to charge your battery. Voltage Regulater does what it implies. 19 volts is way too much. How are you validating the charging voltage? I would first hook up a separate volt meter like a Digital volt ohms meter to validate the high voltage while the engine is running. Check the state of your battery, water level, and state of charge after it sits overnight. Should be 12.5-12.6 volts if it's healthy. Some engines combine the voltage regulator and rectifier in one assembly. Others are separate. If your tach is partially working like it sounds I would suspect the voltage regulator.
was reading volt meter in dash. Tested it with digital fluke meter and at 1200 rpm was getting 12.7 at battery.
As far as the tach, The regulator and rectifier is one unit. This an OMC tach with warning lights. The warning seem to work.
Still think I should look at the regulator/rectifier?
What is the procedure for testing the regulator/rectifier? I have a good ohm meter. Would like to test before I buy a new one.
I am pretty sure that is my problem since I am not getting over 13 volts at battery with engine running.
