Correct installation is critical

NGK says it is the world’s leading brand of spark plugs, and also specialises in ignition leads that provide electromagnetic noise suppression, as well as long-life durability and compatibility for LPG fuelled vehicle applications.

NGK says it is important that the installation of ignition leads is done in the correct manner to ensure safety and to avoid damaging the car, and the engine.

Here are the steps that technicians should follow when installing ignition leads:

Before installation, please confirm that the engine is switched off and has been sufficiently cooled down.

It is advised that before commencing installation, protective gear, such as gloves should be worn to avert burns.

To avoid incorrect installation, remove and install each ignition lead one at a time. This will prevent lead mix-up and incorrect engine firing sequence.

Inspect and confirm that engine spark plug chambers are clear of water, oil or other foreign objects.

Remove the used leads by hand, by grasping and pulling straight on the spark plug boot and coil/ distributor boot. If the leads are difficult to dislodge, rotate the boots and then remove.

Do not pull on blue lead cable. Do not pull out boot at an angle. Do not use tools to remove leads as these may result in cutting of ignition lead cables, damaged boots, a broken terminal clasp and/or voltage leakage (flashover).

Install the spark plug and coil/ distributor boots securely. A loose or incorrect connection may cause water intrusion and/or voltage leakage. Dielectric grease can be applied to the inside of the spark plug boots, during installation to aid in keeping out moisture.

To confirm correct ignition lead connections have been made, a ‘click’ should be felt/heard at both terminal ends.

Ensure all lead cables are not bent or crushed, and are clear from heat sources and moving components.

Run engine to confirm correct ignition lead fitment has been completed.

To learn more about the product check the e-learning programme at; www.ngkelearning.com.au or visit the website: www.ngkspark.co.nz