Re: No Ammeter Movement-No Charge?

Posted by Bob M on December 07, 2000 at 12:24:49 from (192.232.119.194):

In Reply to: No Ammeter Movement-No Charge? posted by David A on December 07, 2000 at 10:17:37:

David - Good chance your ammeter has a stuck needle - especially if the glass is cracked letting moisture get in. I've seen it happen a lot. You are however correct the ammeter shunt will still pass charging current even if the glass is busted and the needle is stuck.

If you have an accurate voltmeter, charging system testing is straightforward: Take a reading across the battery terminals with the engine stopped. Should show about 6.4 volts if the battery is charged. Now start the motor, run it at max throttle and read the voltmeter again. If it reads higher than the first reading, the battery's being charged. If the voltmeter reading is unchanged or lower you've got other problems - bad generator, cutout, wiring, etc.

Good luck! Bob M

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