1972 Dart starting Problem

[zoto1a]

My 1972 Dodge Dart (slant 6 225) has had a problem in starting after running for 30 minutes or so.
So, I had the carburetor rebuilt: then I replaced the fuel filter: then I rerouted the fuel line: then I put in a electronic ignition.
When I took it to a mechanic, he told me it needed the head rebuilt, So I had the head rebuilt.
Afterwards, it still had the same problem, even with a brand new gas pump.
As a hunch, I had the ballast resistor replace.
After driving the car for forty mile and turning a key off for ten minutes, it refused to start for about 30 minutes, then it started!
Does anyone have any ideals why this starting problem still happens?

 

[70Valiant]

Sounds to me like your coil is everheating.

 

[RedFish]

sounds like classic temp related failure of ignition module.

 

[vynn3]

sounds like classic temp related failure of ignition module.

Yeah, does the car have points or electronic ignition?

vm

 

[6dart9]

one of my cars did that and it ended up being the solenoid on the starter. it was an 89 but more likely ignition. does your coil spark when you try to start it? if not then there would lie the problem

 

[6dart9]

: then I put in a electronic ignition.

Electronic it sounds like

 

[memike]

I have had at least three coils do that to me.8)
And they where all points cars.

Could there be a fused link that gets hot and when it cools, it gets you going again?:read2:

I would borrow a coil and give that a try.
Sounds like this has been aggravaiting .
Keep us updated, and I hope you get it doing good soon.
At least you got a good new head dun on it.:cheers:

 

[memike]

I have had at least three coils do that to me.8)
And they where all points cars.

Could there be a fused link that gets hot and when it cools, it gets you going again?:read2:

I would borrow a coil and give that a try.
Sounds like this has been aggravaiting .
Keep us updated, and I hope you get it doing good soon.
At least you got a good new head dun on it.:cheers:

 

[65 Dartman]

Had the same problem on wife's 70 Swinger 318/904. Let it cool 30 minutes or so and would start right up. It was the starter solenoid.