Vertex Electronic Distributor (2 Wire Unit with Ground)

Old Distributor Removal:
Step 1-Disconnect the coil trigger wire coming from the distributor to the negative (-) side of the ignition coil at the coil terminal. Disconnect the wire supplying current to the positive side (+) of the ignition coil. There may be two wires on this terminal, one from the ballast resistor and one from the starter solenoid. The ballast resistor should have one wire left, the one to the ignition switch. Mark this wire for future reference. Remove the old ignition coil and ballast resistor, as they are no longer needed. Identify the ignition (spark plug) wire used to time the engine. It is usually #1 cylinder. Mark this wire location on the distributor housing and the distributor cap.
Step 2-Rotate the engine crankshaft in the direction of proper rotation until the timing mark on the harmonic balancer lines up with the indication on the timing tab for Top Dead Center (TDC).
Step 3-Remove the distributor cap (do not remove the spark plug wires from the old distributor yet) and observe the position of the rotor blade. The blade of the rotor should line up with the mark placed on the old distributor housing (step 1). If the blade is not lined up with the mark (180 degrees out) then repeat step 2 until the timing marks are aligned again. Once you have completed step 3, do not rotate the crankshaft again until the new distributor is correctly installed.
Note: Ensure the vehicle ignition switch is in the off position and battery is disconnected before proceeding further.
Step 4-Note the direction that the rotor blade is pointing, remove the distributor hold down clamp and remove the distributor from the engine. Clean the distributor mounting surface ensuring there is no grease, dirt or paint to interfere with the installation of the new Vertex® Electronic Distributor.
Vertex® Electronic Distributor-Motor Installation:
Step 1-Using a piece of tape, mark the position of the number one electrode of the Vertex® Electronic Distributor cap on the distributor housing. Remove the distributor cap from the Vertex® Electronic Distributor.
Step 2-Install the Vertex® Distributor on the engine with the rotor lined up with the number one electrode mark on the distributor housing. If the distributor shaft drives the oil pump, ensure the distributor shaft fully engages the oil pump. Note: it may be necessary to turn the oil pump shaft to effect proper alignment. Do not force the distributor onto the oil pump shaft or damage to the distributor and/or oil pump may result. Installation of the Vertex® Electronic Distributor may require indexing number one cylinder to a different electrode, positioning the cap to get the ignition wires in a desired direction. In this case, rotate the distributor housing until the ignition wires are pointed in the desired direction. Noting the position of the rotor, rotate the housing until the rotor is directly pointing to the nearest electrode. Connect the number one spark plug wire to the terminal that the rotor is pointing to.

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