What is the Standard Spark Plug Gap Size for Cars? Let's Find Out!
Knowing the standard spark plug gap size for cars is very important for car owners. This gap significantly affects the electrical spark results in the car's combustion system. So, what is the standard spark plug gap size needed? To answer that question, please refer to the review below.
Standard Spark Plug Gap Size in Cars
Before you find out what the standard gap size is for car spark plugs, it is best to first understand the shape of the gap in car spark plugs. Here is the complete shape of the gap.
1. Single Electrode
Spark plugs of the single electrode type usually have one central ground or ground point and have a gap at the end of the electrode. Spark plugs of this type have an elongated spark because the gap position is vertical. The spark plug gap for this type usually ranges from 0.72 mm to 1.62 mm.
2. Multi Electrode
The second type of spark plug is the multi electrode type. In this type of spark plug, the electrical spark or flame produced is located around the electrode. The number of sparks produced is usually equal to the number of central grounds or ground points.
This makes this type of spark plug used by cars with a fairly large cc capacity. For example, cars with a cc capacity exceeding 500 cc per cylinder. For multi electrode spark plugs, the standard spark plug gap size usually ranges from 0.8 mm to 1.0 mm.
Read Also: Iridium Spark Plugs vs Regular Spark Plugs, Here’s the Difference!
The Effect of Spark Plug Gap on Car Spark Plug Performance
You may be wondering why the gap in each type of spark plug is different. Does this gap affect the performance of car spark plugs? To satisfy your curiosity, let’s take a look at the following review.
The spark plug gap greatly affects the performance of car spark plugs. Why is that? Because the size of the spark plug gap significantly influences the ignition temperature produced by the spark plug. Not only that, the spark plug gap also affects the air circulation in the engine and the combustion process (the fuel combustion process).
A spark plug gap that is too large usually produces a small spark or electricity, resulting in less engine power. This condition has a positive impact, which is to save fuel. However, the negative impact is that the car's performance decreases compared to normal performance.
On the other hand, a spark plug gap that is somewhat smaller can produce a sufficiently large spark, resulting in much greater power. This condition can enhance the car's performance, suitable for those who want to modify the engine for increased speed. However, this condition has a negative impact, which is to make fuel consumption more wasteful.
Read Also: Tips for Recognizing Signs of a Damaged Car Spark Plug
It is advisable to use spark plugs with a gap that matches your car's specifications. You can check the type or size of the suitable spark plug gap in your car manufacturer's manual. If you do not understand it well, you can ask a professional mechanic when performing maintenance at the workshop.
The use of spark plugs for a long time can sometimes affect the gap's spacing. To address this issue, you can measure the gap using a feeler gauge. Make sure the spark plug gap you adjust is not too tight or too loose to avoid disrupting the performance of the car's spark plugs. Ensure the spark plug gap meets the standards required for your car.
If you are still unsure about measuring the spark plug gap on your own, you can take your car to the nearest Daihatsu workshop or dealer to resolve your issue.
