[AT] No spark

[John Wilkens]

Matthew, I find your comments to Jeff interesting.  Think I'll copy them 
for future trial.  But, what is a "bug light" and a neon light?  Easy to 
get at a parts store?   Can you use a timing light?   John W.




At 09:21 AM 08/14/2005, you wrote:
>Take a 12V bug light and put it across the coil's low voltage terminals and
>try cranking the engine.  The light should flicker on and off as the points
>open and close.  If that happens, then the problem is on the high voltage
>side.  If that does not happen, then the problem is on the low voltage side.
>
>Put a neon lamp from the hight voltage contact on the coil to ground and try
>turning it over.  The neon lamp should flash brightly.  If it does not you
>have a bad coil.
>
>Next, re-connect the center wire to the distributer to the coil and try your
>neon light on each of the spark plug holes on the distributer.  Turn it over
>and you should get bright flashes, but less often (1/4 or 1/2 to be exact)
>If that is the case you got bad wires or plugs or something not seated right.
>If that fails, something in the top of the distributer or roter  is messed
>up.  The contacts on top of the distributer should be checked and the contct
>on the rotor.
>
>It is not black magic, just a matter of figuring out where it is broken.
>
>--MAtthew
>
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                    In the wide-open spaces of NE Oregon