In a message dated 1/4/2012 5:34:37 AM Central Standard Time,
aljlthomson@charter.net writes:
> Regarding # 3 - Turn the engine over so that the ignition points are
> closed.
> Check for voltage between ground and the 12V terminal on the coil that is
> connected to the side of the distributor. There should be no voltage at
> that
> time. If there is, the points may be corroded, not properly adjusted, or
> otherwise not grounding out as they should. Ground the points directly
> with
> a probe or screwdriver - that should cause a spark at the coil output
> terminal when the grounding is interrupted if the coil is good. Also, turn
> the engine over so the points are open. There now should be 12V between
> ground and the coil terminal that is connected to the distributor. If not,
> then the coil has an internal break.
>
All good information except for one typo, I'm sure. With the points closed
there should be no voltage between the coil terminal -connected to the
distributor- and ground. The 12 volt terminal on the coil should always have
12
volts when the key is on.
Alternatively you can measure the voltage across the coil with the points
open and then with the points closed. If you don't get voltage across the
coil with the points closed it might be something as simple as the broken wire
between the coil and distributor, a broken wire in the distributor between
the terminal and the points or a broken breaker plate grounding wire.
If you get a constant 12 volts it may be just incorrect assembly of the
points/condensor/wire which is quite common.
Dave
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