21. Whenever installing new spark plugs, check the high voltage wires.
22. Before removing the wires, make sure they are labelled.
23. Check the tip for corrosion in the form of a white solid powder. The tip just slides over the spark plug, so make sure it fits snugly. If not, disconnect the wire and use a pair of pliers to gently crimp the metal ferrule until it sits securely on the end of the spark plug.
24. Wipe the wires with a clean rag. After that, check that there are no burns, cracks or other damage on them.
25. Disconnect the other end of the wire from the distributor cap (see photo). Also check the tip. If you have an ohmmeter, check the resistance of the wire by attaching a meter between the spark plug end of the wire and the toothed segment inside the distributor cap. Finally, connect the wire.
26. In the same way, check the remaining high voltage wires.
27. If new wires are needed, buy a kit that fits your car model and engine.
28. Remove the distributor cap, wipe it clean, and carefully inspect inside and out for cracks. burnt tracks, wear of contacts. Also inspect the distributor slider. Replace defective components. It is recommended that each time you install new high voltage wires, replace the distributor cap and slider. When installing a new cover, remove the high voltage wires from the old cover and install them on the new one in the same places.
29. Even if the ignition system is in excellent condition, some engines may be difficult to start due to moisture in the air shunting the ignition components. To remove moisture, there is an effective tool Holts Wet Start. Holts Damp Start is used to provide a cap seal to keep moisture from the air from entering the ignition system, and in emergency cases, Holts Cold Start will help start the engine with a weak ignition spark.