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72 318...need voltage number into coil please #1256110 06/23/12 05:50 PM 06/23/12 05:50 PM
Joined: Jan 2009 Posts: 124 Pittsburgh, PA B bigdaddywiz OP member
bigdaddywiz OP member B Joined: Jan 2009 Posts: 124 Pittsburgh, PA	i'm posting this for a friend of mine with a 72 challenger with a 318... 72 challenger 318 stock electronics, i'm getting 12.5v at the battery, getting 12.5 from battery ground to the fuse box under the steering wheel, once key is turned to ignition (not starting, but on) all voltage drops to 10.2v. i'm trying to figure out if 10.2v is normal going into the coil or should i be getting the full 12.5v? and yes, i replaced the external ballast. i want to make sure i dont fry the coil. thanks guys

Re: 72 318...need voltage number into coil please [Re: bigdaddywiz] #1256111 06/23/12 05:52 PM 06/23/12 05:52 PM
Joined: Jan 2003 Posts: 32,934 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 32,934 Grand Prairie,Texas	The ballast resistor drops the voltage so you are in the ballpark. The ballast is bypassed in the start positon so the coil gets full 12v while cranking.

Re: 72 318...need voltage number into coil please [Re: stumpy] #1256112 06/23/12 05:54 PM 06/23/12 05:54 PM
Joined: Jan 2009 Posts: 124 Pittsburgh, PA B bigdaddywiz OP member
bigdaddywiz OP member B Joined: Jan 2009 Posts: 124 Pittsburgh, PA	Quote: The ballast resistor drops the voltage so you are in the ballpark. The ballast is bypassed in the start positon so the coil gets full 12v while cranking. thanks a lot stumpy! i'll let him know!

Re: 72 318...need voltage number into coil please [Re: bigdaddywiz] #1256113 06/23/12 07:33 PM 06/23/12 07:33 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	Is he having an electrical issue or just double checking live every 24 hour block of time like it's your last day on earth

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