See Figure 1
- Disconnect the negative battery cable.
- Disconnect the distributor wire(s) at its connector.
- Label and disconnect the vacuum hose(s) running to the vacuum advance unit on the side of the distributor, if so equipped.
- Remove the distributor cap (leave the spark plug wires connected) and swing it out of the way. If necessary, label and disconnect the coil and spark plug wiring at the distributor cap.
- Carefully note the position of the distributor rotor relative to the distributor housing (also note position of distributor to the engine assembly); a mark made on the casing/housing will be necessary during reassembly. Use a marker or tape so the mark doesn't rub off during handling of the case/housing.
- Remove the distributor hold-down bolt.
- Carefully pull the distributor from the engine assembly. Remove the O-ring from the distributor shaft if so equipped.
Engine not disturbed
- If the engine has not been moved out of position, align the rotor with the mark you made earlier and reinstall the distributor. Position it carefully and make sure the drive gear engages properly within the engine. Install the hold-down bolt.
- Install the distributor cap and connect the vacuum lines to their correct ports, if so equipped.
- Connect the wiring to the distributor and the battery cable.
- Check and adjust the timing as necessary.
If the engine has been cranked, dismantled or the timing otherwise lost while the distributor was out, proceed as follows.
- Remove the No. 1 spark plug.
- Place your finger over the spark plug hole and rotate the crankshaft clockwise to Top Dead Center (TDC). Watch the timing mark on the pulley; as it approaches the 0 point, you should feel pressure (compression) on your finger. If not, turn the crankshaft another full rotation and line up the timing mark to the 0 . This time you should feel compression.
- Temporarily install the rotor in the distributor without the dust cover. Turn the distributor shaft so that the rotor is pointing toward the No. 1 terminal in the distributor cap.
- Align the matchmarks on the distributor body and the block which were made during the removal. Install the distributor in the block by rotating it slightly (no more than one gear tooth in either direction) until the driven gear (lubricate the drive gear with clean engine oil) meshes with the drive.
- If necessary, rotate the distributor once it is installed, so that the projection on the pickup coil is almost opposite the signal rotor tooth. Temporarily tighten the hold-down bolt.
- Remove the rotor and install the dust cover. Replace the rotor and the distributor cap.
- Install the primary wire and the vacuum line(s) if so equipped.
- Install the No. 1 spark plug. Connect the cables to the spark plugs in the proper order by using the marks made during removal. Install the high tension lead if it was removed.
- Start the engine. Adjust the ignition timing as necessary.