What is BR8HS 10?

NGK Standard marine spark plugs have alumina silicate in its ceramic insulator, copper core and is triple sealed to help dissipate the heat. NGK Standard marine spark plugs have alumina silicate in its ceramic insulator, copper core and is triple sealed to help dissipate the heat.

Are NGK pre gapped?

While most NGK spark plugs are pre-gapped, there are occasions when the gap requires adjustment. Care must be taken to avoid bending or breaking off the fine-wire electrodes. If the gap must be adjusted, use a tool that only moves the ground electrode and does not pry between or against the electrodes.

What is the difference between BR8HS and B8HS?

Yes, BR8HS is the resistor version of the B8HS. The reason for introducing resistor spark plugs (and wires) in the evolution of internal combustion engine ignition was to decrease the electromagnetic interference (EMI) of radio signals and such by nonresistor ignitions.

Do NGK Iridium plugs need to be gapped?

In most cases your Iridium Power plugs do not need to be gapped. Should you decide to re-gap your Iridium Power plug, use extreme caution as improper gapping may damage or destroy the Iridium center electrode or porcelain center.

Do OEM spark plugs need to be gapped?

Do Spark Plugs Always Have to Be Gapped? Not always. In the past, it was necessary to gap spark plugs, but today spark plugs are usually pre-gapped. It is advisable to double check that the gap is correctly set to the vehicle’s recommended setting when installing spark plugs.

Are pre-gapped spark plugs good?

Gapping the plugs to your engine’s specifications is important to prevent pre-ignition, detonation, fouling and poor fuel economy. Even if the preset gap matches that required by your engine, it is always good practice to physically check the gap as it may have shifted during transportation.

What happens if plug gap is too big?

If the spark plug gap is incorrectly set, it can lead to engine issues. Too small of a gap may give too weak of a spark to complete the combustion process within the engine; too wide of a gap can lead to the spark plug not firing correctly, causing misfires at high speeds.