Electric choke wired to coil?

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darc1722

darc1722

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Can I connect my edelbrock 600 electric choke positive to the coil? Has anyone done this or will it cause any issues? Trying to clean up wiring and looking for the easiest way, any thougts on this? Thanks
 
Coil gets lowered voltage in run. Tap the blue, switched 12 volts at the alternator is comming right by there.
I would prefer a oil pressure sensing switch so the choke doesn't heat up until the engine runs. Otherwise the choke is heating any time to key is turned to on.
 
I ran an electric choke off of the 12v side of the ballast resistor; result was poor idle due to a voltage reduction at coil via parallel path to ground. In other words coil was receiving less than its 5-6 six volts.

To correct the voltage drop, I used a relay triggered by the blue ignition wire, and choke is powered from battery.

Chargingcircuitrelayupgrade.jpg
 
Jr has a good point. Many of these cars suffer from HARNESS VOLTAGE DROP, which can be caused by one or more problems, the top suspect being poor connections in the bulkhead connector.

IN my 67, when I got it, there was ONE VOLT drop in the ignition run (blue) going to the regulator/ ign system

Using a relay to power ALL ignition run loads is a good idea if you cannot run down the drop, and even if you do, it relieves the strain on these components.
 
I have been using the one of the field wires on my 73 duster for 7 yrs now for the electric choke on the eddy 600 carb.
 
kt340sport said:
By rights , it is supposed to go right to the fuse box on accessary
Click to expand...

uh, no. You don't want the choke powered in "accessory." They probably advised against any "underhood" source for liability. That's what this is all about. The factory "ign run" (dark blue, IGN1) circuit is NOT fused, and is a little on the "weak" side, due to (in the older cars) smaller wire gauge, and deterioration of connectors in the bulkhead and igntiion switch, as well as the switch itself, and in worse cases, problems with the ammeter connections, or the "in harness splice"

Part of the reason I put a relay box under the hood. Mine is out of a junker minivan. Enough relays for headlights, pump, ignition, and fans (if ever) and FUSES

Mine is out of a 90's Voyager and snuggles right up to the side of the fender apron behind the battery

image.php
 
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