small post next to the block is the starter trigger wire. big post is battery cable and alternator charge wire. the outside small post next to the exhaust is for the 12v during cranking that went to the ignition coil on points to give 12v only during cranking.
Chevrolet wiring colors and locations for car alarms, remote starters, car stereos, cruise controls, and mobile navigation systems.
Unplug the primary wire plug from the HEI distributor. Use a flat blade screwdriver to turn the two distributor hold-down screws 180 degrees, and pull the distributor cap away from the distributor. Crank the engine just a little bit to see which direction the rotor button rotates. For instance, a Chevy small block goes clockwise.
1953 & 1954 Chevrolet Tech-Tips. Download the 1953 Chevrolet AEA Wiring Diagram in PDF format. This Yellow wire end needs to connect to the + terminal of the Ignition Coil. I continued to route the yellow wire along the back firewall, in back of the engine, and down to the Ignition coil.
Here are the complete wiring harness schematics for the 73-87 series pickups. These are HUGE jpgs so you may want to save them to your hard drive and print the pages you need.
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