2. The check begins with an external inspection of the insulation of the wires with the engine running. Drive the car into a dark, well-ventilated area, start the engine and check for sparking on the wires. Sparking is a sign of insulation breakdown. Avoid touching moving components in the engine compartment. Make the necessary notes on the replacement of defective wires, then let the engine cool down and proceed to check the condition of the ignition distributor cap and runner.
3. Checking the spark plug wires is carried out one by one in order to avoid violating the order of their connection during assembly. Usually, there is a corresponding marking on the insulation of branded wires. If there is none, apply it yourself with tape and a marker.
4. Disconnect the BB wire from the spark plug (it is best to use a special tool). In no case do not pull on the wire itself, only on its tip.
5. Inspect the inside walls of the tip. Corrosion usually appears as a brittle, crusty, white deposit.
6. Pull the tip back over the shank of your spark plug, making sure it fits snugly. If necessary, remove the ferrule again and fold the terminals inside the rubber boot accordingly.
7. With a clean rag, wipe the wire along its entire length, completely removing traces of dirt and grease from the surface of the insulation. Inspect the wire insulation for cracks, burn marks, or other damage. Try not to bend the wire at sharp angles to avoid breaking the integrity of the conductor cores inside the insulation.
8. Disconnect a wire from the distributor, - again pull only for a tip, but not for a wire. Check the tip for signs of corrosion, evaluate its fit on the terminal. Reconnect the wire to the distributor.
9. In a similar manner, check the condition of all remaining spark plug wires one by one. Make sure that they are securely connected to the spark plugs and distributor terminals.
10. If it is necessary to replace the BB wires, make sure that the replacement wires correspond in size to the parameters of your car engine. In branded stores of car accessories and service centers of the company, you can always purchase ready-to-use sets of BB wires, cut to length and equipped with tips. Remove and replace wires one at a time to avoid misfiring.
11. Having unscrewed the mounting screws, remove the distributor cover and carefully inspect it both from the outside and from the inside for cracks, carbon tracks, traces of burnout, loosening of contact connections and other damage.
12. Pulling up, remove the slider from the distributor shaft and inspect it for cracks and carbon tracks. Replace defective components.
13. It is good practice to replace the distributor cap and runner, regardless of their condition, each time new BB wires are installed. When using old components, carefully clean the contact surfaces of their terminals and measure the resistive resistance of the wires and the roof (see Specifications to this Chapter).
14. When installing a new distributor cover, transfer the wires from the old BB to it, connecting them strictly in the same order - try not to disconnect all the wires at the same time, transfer them one by one.
Note. The order of ignition is specified in Specifications at the beginning of the present Chapter. On most models, the protective tab (lining) the terminals for connecting the wire of the spark plug of the first cylinder on the distributor cap are marked accordingly.