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vdubluv1998

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Posts: 2
Reply with quote  #1 
I have 12 volts at positive and negative side of coil and i don't know if I'm supposed to but when ignition on 12 volts out plug wire on coil. But I'm not getting any spark from coil when i turn motor over. Any suggestions
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vdubluv1998

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Reply with quote  #2 
I'm getting spark at my points as well but no where else
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Wayne

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Reply with quote  #3 
If you are getting spark at the points that means you are getting power from the coil right? The spark should travel from the rotor to the cap down the wires to the plugs. Do you have spark at the plugs? If not, a good place to start would be new points, condenser and rotor. I would change to cap and wires too if they have not been replaced in a while. Shoot, change the coil too.
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Wayne Dean

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Dubmatix

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Reply with quote  #4 
It is normal to see 12V on all terminals of an HT coil if the engine isn't turning and the points are OPEN (with the ignition on!).  Inside the coil, there is essentiallu a (coil of) wire between +and- and also between - and HT output terminal so that's totally normal.

It is most likely to be your condenser failing causing the coil to dump the stored charge back down across the points which will show as a big spark.  This stops your plugs getting the energy from the secondary winding.  I would change the condenser first and inspect the points to make sure the contact faces are not pitted of have raised areas (possible given the failed condenser). If it has then then clean the points contact faces up with a diamond file or change the points too.

Internally your coil wiring is like this - you can see the (coiled) wire links between the terminals :


[circ_ic]  


Regards

John
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texson

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Reply with quote  #5 
You do have the distributor hooked to the negative coil side? Next try would be to change plugs.
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