From: Fred Martin (mung@in-touch.net)
Date: Thu Jul 10 2003 - 05:03:26 PDT
The capacitor can be rough tested by the use of an analog voltmeter by
setting the meter on the ohms scale ( X 1) and connecting the leads one
way and then the other. The needle will go up slowly as the capacitor
charges. This method will show you that at least it is doing what it was
designed for...to compare this measurement with a known good cap should
ease your mind. Fred Martin
Jim Newton wrote:
> Hi Doctor...
>
> You can test any coil by hooking it up to a power source (24 volts in
> your case) but leave the positive wire off for now. Put a piece of
> stiff bailing wire in the center high-voltage connection and bend the
> wire so it forms a 1/16" spark gap to the negative 24 volt connector
> on the coil. Then touch the positive lead to the positive terminal
> and then quickly REMOVE it...when you remove it you should see a spark
> appear across the spark gap you made. If it doesn't spark, then it is
> probably fried.
>
> I'm not sure how to test a condensor...but those rarely fail, and
> would not be likely to fail from having the ignition left on.
>
> Good luck!
>
>
>>Anyone know how to test a 24 volt coil and capacitor on a 71' M151A2?
>>My nephew apparently got in the mutt and turned on the ignition switch, and it stayed on for about 8
>>hours before I noticed it. The outer distributor was hot as a firecracker, and now it won't start. I
>>pulled the spark plug and held the wire up to the block while the starter was cranked and there was
>>no spark at all. I'm afraid the coil or capacitor is fried.
>>TIA,
>>Dr. Mike
>>
>>
>>
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>
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