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No spark or intermittent spark, new coil installed

  #1  
Old 10-23-2011, 07:15 PM
Junior Member
Thread Starter
Join Date: Oct 2011
Posts: 6
Default No spark or intermittent spark, new coil installed

Hi all.

I have a 62 falcon, 170 IL 6. I have a strange issue. For the engine to start I need spark, compression, and fuel.

I can get the car to start intermittently... When it runs it sounds good but the even with the gas petal down, and the time it's running depends, it will just cut off.

As far as the spark, it's not a bright blue or seems strong enough at all... Very dim spark and even non existent during cranking at times. The battery seems to be draining quite fast upon cranking as well.

I haven't gone crazy with purchasing parts yet because I really want to try troubleshooting it. I've changed the plugs, cap and rotor, and got a new coils. Points seem fine. #1 cylinder at TDC is fairly close to #1 on distributor.

If I can remember I got like 6.8vdc at the coil when the ignition was on. Not even sure what the voltage should be???

Is there anything else that can cause week or no spark besides the coils. I'm beating my head over what else could be the issue... And I'd rather not go out and just start buying parts. Maybe a specific wire could be brittle or something but not sure what one.

Thanks everyone, any input would be greatly appreciated....
 
  #2  
Old 11-22-2011, 10:07 AM
Senior Member
Join Date: Sep 2011
Location: Iowa
Posts: 757
Default

I would replace points and condenser. Failing condensers do funny stuff. In a way much of the energy is released at the points rather than the plugs if the condenser is bad.
Bluewind
 

Last edited by bluewind; 11-22-2011 at 10:11 AM.
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