Quote:
Originally Posted by joeypoconos
Popeye31 - performed first of the tests (positive cable to positive post). Test light DID NOT come on. Does this eliminate a short anywhere in the system and point to an un-regulated generator ??
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The test light is used to check for battery voltage. If you probe the + battery post and + cable end on that post you are just checking for voltage drop. For this you need a DC volt meter with a low voltage reading. You also need current flow to measure voltage drop, so you crank the engine over while doing this test. You shouldn't be able to measure any voltage. If you measure voltage, the the clamp must be loose or dirty.
A test light is handy to locate where the voltage is or isn't. On the Model A the horn and coil should always have 6 volts and operate when a ground is sent by the horn button and by the points. The lights have power up to the point of the switches, so the headlights have power to the light switch on the bottom of the steering column and the brake light has power up to the brake light switch.