74 dart converted to hei In my race car .I keep killing batteries. No wiring in car but power switch pushbutton starter alternator and gauges. Every thing seems grounded well. just like every setup I've seen in a street car conversions. Any ideas where I'm missing something. Or a simple diagram for a hei race car set up.
dart hei killing battery
- Thread starter hudson368
- Start date
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67Dart273
Well-Known Member
How do you know it's hei? If the HEI is drawing power, it should not shut down the engine
More about how it's wired?
How about an alternator? You run one? You sure it's charging?
And how do you know anything for sure based on what you have posted?
Under "what conditions" does it kill the battery?
Sitting parked? have you checked for parasitic drain? You do that by first putting a test light in series from ground to the disconnected battery NEG post. Look for a light
Charging? What is the running voltage?
More about how it's wired?
How about an alternator? You run one? You sure it's charging?
And how do you know anything for sure based on what you have posted?
Under "what conditions" does it kill the battery?
Sitting parked? have you checked for parasitic drain? You do that by first putting a test light in series from ground to the disconnected battery NEG post. Look for a light
Charging? What is the running voltage?
hollywood hig
King of the assklowns
u have a circut that is on, drawing current then. like del said, put a test light in between neg. batt. cable and the post. if it lights up, u have a draw on the battery. start pulling fuses until the light goes off. the circut that shuts the light down has the draw, now determine what part of the circut is pulling the power. of course this test is done w/the key in the off position.
higgs
higgs
67Dart273
Well-Known Member
PLEASE do not do this. It proves nothing
This problem will not be a bad ground.
THIS above. It may not have anything to do with ignition, and I'd guess "not."
On a side note, some ignitions draw current with the key in "run" and the engine dead. This includes points systems with the points closed (hard on them and the coil) and also the Mopar breakerless systems.
What does NOT draw much current in the above situation is a GM HEI module!!!
nm9stheham
Well-Known Member
Just as an FYI, pulling off a battery terminal when the alternator is running can damage/kill the alternator or regulator.
How long sitting does it take to kill the battery? If this is a race car, why do you not have a battery cutoff switch? Most/many sanctioning organizations require them....or is that what you are calling a 'power switch'?
Waht HEI do you have?? We do not know if the HEI circuitry is wired correctly. Maybe he just needs a good wiring diagram for whatever ignition system he has.
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