79 mercury 140 ob no spark #1 and#5 cyl

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  #1  
Old 04-20-05, 02:52 AM
tsilva
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79 mercury 140 ob no spark #1 and#5 cyl

tried changing plug,wires,coils help!
 
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  #2  
Old 08-23-05, 04:11 PM
snyderhouse2
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If you're only missing the spark to 2 of the cylinders, the problem would have to be the distributor cap, since you've already replaced everything else (plugs, wires, coil). I had a problem with no spark to any of my cylinders and the problem was the points.
 
  #3  
Old 08-23-05, 07:32 PM
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Do you have a distributor or distributorless ignition system? I believe 1979 had distributorless ignition. Correct me if I am wrong.
 
  #4  
Old 08-31-05, 07:34 AM
txtaz
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Nope, no distributor there. Check your power packs.
 
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