Remove the distributor cap and inspect the inside for flash over, cracking of the carbon button, lack of spring tension on the carbon button, cracking of the cap, and burned, worn terminals. Also check for broken distributer cap towers. If any of these conditions are present, the distributor cap and/or cables should be replaced.
When replacing the distributor cap, transfer cables from the original cap to the new cap one at a time. Ensure each cable is installed into the corresponding tower of the new cap. Fully seat the wires into the towers. If necessary, refer to the appropriate engine firing order diagram.
Light scaling of the terminals can be cleaned with a sharp knife. If the terminals are heavily scaled, replace the distributor cap.
A cap that is greasy, dirty or has a powder-like substance on the inside should be cleaned with a solution of warm water and mild detergent. Scrub the cap with a soft brush. Thoroughly rinse the cap and dry it with a clean soft cloth.
Replace the rotor with a new one if it is cracked, the tip is excessively burned or heavily scaled. If the spring terminal does not have adequate tension, replace the rotor with a new one.
REMOVAL & INSTALLATION
See Figures 1, 2, 3, 4, 5 and 6
- If equipped, detach the distributor connector from the engine wiring harness connector.
- If applicable, remove the distributor cover by removing the cover hold-down bolts.
- Remove the distributor cap retaining screws.
- Label and disconnect the spark plug cables from the spark plugs and the ignition coil cable from the ignition coil.
- Lift the cap off of the distributor. If the distributor cap is found to be defective, remove the spark plug cables as described in the previous inspection procedures or in the spark plug cable procedures located earlier in this section.
- Note in which direction the distributor spark pick-up (rotor) is pointing, then pull the rotor off of the distributor shaft.
- Push the new rotor onto the distributor shaft until it is fully seated on the distributor shaft. Make certain it is pointing in the same direction as when removed.
- Set the distributor cap back onto the distributor.
- Tighten the distributor cap retaining screws until they are snug.
- Connect the spark plug cables to the spark plugs and the ignition cable to the ignition coil.
- If necessary, install the distributor cover.
- If equipped, attach the distributor connector to the engine wiring harness.