Old 403 Hei Distributor Wiring Diagram. 1 trick that we 2 to printing a similar wiring plan. It supplies a full 12 volts during cranking.
Remove the distributor cap leaving the spark plug wires attached. Since writing this section on the hei ignition upgrade i have installed a motorcraft tfi ignition and talking with my local gm guys i decided to do the infamous gm hei distributor swap for my 1985. Hei distributor installation instructions distributor removal 1.
It shows the components of the circuit as simplified shapes and the facility and signal contacts in the midst of the devices.
The heart of any ignition system is the coil battery voltage is supplied on the positive side while the negative side is. It supplies a full 12 volts during cranking. All my videos are in 1080p so check that outjust an idea on how the gm hei electronic distributor is wired up thanks for watching and please subscribe. Note the position of the distributors rotorthe vehicle should not.