Why Choose Us?
Rich Experience
Hangzhou Hongtu Machinery Equipment Co., Ltd. was established in 2013. HTL's service tools are designed by field experts with more than 10 years to create a unified and professional tool.
Wide Product Range
Specializing in the production of automotive tools such as timing tools, air conditioning tools, body repair tools, brake tools, cooling system tools, electrical repair tools, engine tools, gear pullers, special pullers, steering and suspension tools, and general manual.
One-stop Service
Our products are exported to more than 40 countries in Europe, America and Asia. We're sure to be your one stop shop for all your auto repair tool needs!
Strong Production Capacity
We have 8 workshops, Current General Tools capacity can up to 150000000 per year , The Timing Tools can up to 12000000 per year.
What is Sparks Plugs?
A spark plug (sometimes, in British English, a sparking plug, and, colloquially, a plug) is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within the engine. A spark plug has a metal threaded shell, electrically isolated from a central electrode by a ceramic insulator. The central electrode, which may contain a resistor, is connected by a heavily insulated wire to the output terminal of an ignition coil or magneto. The spark plug's metal shell is screwed into the engine's cylinder head and thus electrically grounded.
The Benefits Of Replacing Spark Plugs
Better Fuel Economy
An important benefit of replacing your spark plugs is improved fuel efficiency. Over time, spark plugs can become fouled with carbon deposits, which can cause your engine to run less efficiently. Replacing your spark plugs will help ensure that your engine is running at its peak efficiency, saving you money at the pump.
Reduced Emissions
Another benefit of replacing your spark plugs is reduced emissions. As spark plugs become fouled with carbon deposits, they can cause your engine to emit more pollutants. Replacing your spark plugs will help reduce the amount of pollution your car emits which is better for the environment.
Improved Engine Performance
Another benefit of replacing your spark plugs is improved engine performance. Fouled spark plugs can cause your engine to misfire, leading to a loss of power and efficiency. Replacing your spark plugs will help ensure that your engine is running at peak performance.
Longer Engine Life
Replacing your spark plugs regularly can also help extend the life of your engine. Fouled spark plugs can cause premature wear on your engine's components, leading to engine damage. By replacing your spark plugs, you can help keep your engine healthy and running smoothly for many years to come.
Smooth Engine Idle
Another common symptom of fouled spark plugs is poor engine idle. If your engine is idling roughly or erratically, it could be time to replace your spark plugs. Replacing your spark plugs will help restore smooth and consistent engine operation.
Types of Sparks Plugs
Copper/Nickel Spark Plugs
Copper/nickel spark plugs use a nickel alloy coating for the electrode, with its inner core being primarily copper. Copper is a soft metal, which means that it would instantly melt if it were ever subjected to the extreme heat. It’s common for most spark plugs to have copper cores, as it makes for an excellent electrical conductor.
Single Platinum Spark Plugs
As the name would suggest, these contain a platinum centre electrode. Although platinum-tipped spark plugs are slightly more pricey than other alternatives, they’re impressively long-lasting, especially under normal driving conditions. Platinum is harder than a nickel alloy, which means it doesn’t erode in the same way that nickel ones do. Therefore, if your car has them fitted as standard, it’s advised that you don’t change them out for copper/nickel ones – especially if you have a modern car.
Double Platinum Spark Plugs
Double platinum spark plugs use platinum plating, not only on the centre but on the ground electrode too. These aren’t exactly budget friendly, coming in at one of the most expensive spark plugs on the market. They also manage to yield slightly higher performance than that of single, long-life platinum plugs, something they’re well-known for.
Iridium Spark Plugs
Iridium is highly corrosion resistant, able to withstand temperatures of up to 2000°C. Iridium-tipped spark plugs can allow for smoother-running engines as a result of more complete combustion. As well as this, they also have a considerably longer life-span than that of copper/nickel spark plugs, sometimes lasting as long as platinum spark plugs. Iridium spark plugs are the most expensive spark plugs that are available, featuring a ‘fine-wire’ centre which is designed to better conduct electrical energy.
Silver Spark Plugs
The centre electrode tip of a silver spark plug is made from a silver alloy, ensuring a relatively long lifespan (although not quite the same as platinum spark plug longevity), with ignition sparks of increased energy. They also have the best thermal conductivity in comparison to other spark plugs and are highly resistant to material erosion. These spark plugs also feature a ribbed insulator design which can prevent your car from misfiring. Generally, Silver spark plugs are fitted in older, European high-performance vehicles, and have even been known to be fitted in motorcycles.
Material of Sparks Plugs
Copper
Copper electrodes are among the most popular and find the most use in combustion engines. They are stronger conductors than iridium and platinum, and they are often used in high-performance or modified engines. However, these plugs do not last as long as the other two metals, typically wearing down or needing replacement about every 20,000 miles. Despite their shorter lifespan, these plugs are among the cheapest to replace.
Iridium Alloy
If you are willing to spend a few extra bucks, then you might consider iridium allow spark plugs. While these options do not have the highest conductivity level, they do last nearly twice as long, 40,000 miles, as copper plugs. It is necessary to note that these plugs are not recommended for modified engines.
Platinum
Platinum spark plugs are not recommended for every engine. However, they are known for having superior resistance to time-borne corrosion, and they have a similar life expectancy to iridium alloy. Although, these plugs are typically recommended for only newer vehicles with electronic ignition systems that are distributor-based or even DIS systems.
Automotive Engines
Spark plugs are widely used in gasoline-powered cars, trucks, and motorcycles. Each cylinder in the engine has at least one spark plug, though some may have two or more for better combustion.
Aircraft Engines
Spark plugs are used in the engines of many types of aircraft, from small general aviation aircraft to larger commercial planes. In fact, aircraft piston engines typically use two spark plugs per cylinder for redundancy and efficiency.
Marine Engines
Spark plugs are used in many types of marine engines, including outboards, inboards, and jet skis.
Small Engines
Spark plugs are used in many small gasoline engines, such as those found in lawnmowers, chainsaws, leaf blowers, and other power equipment.
Power Generators
Gasoline or natural gas-powered generators also use spark plugs.
Insulator
Insulates the terminal, center shaft and center electrode from the housing, preventing escape of high voltage from the electrodes. Since the bottom of the insulator projects into the combustion chamber, high purity alumina with superior heat-proof characteristics, mechanical strength, excellent insulation and thermal conductivity at high temperature, etc. is used.
Terminal
The terminal is connected to a high-tension cord through which a high-voltage current from the ignition system flows. A terminal nut is installed so this type can support almost any high-tension cord in the world. For vehicles not requiring a terminal nut, the terminal can be removed.
Ring, Packing Washer
Makes the insulator and the housing fit tightly to each other and maintains the airtightness.
Center Shaft (Stem)
Center shaft connecting the terminal and the center electrode. This shaft is made of steel and has the role of allowing high-voltage current to flow from the terminal to the center electrode without loss.
Housing
The housing forms an outer shell that surrounds the insulator supports the insulator and installs the spark plug in the engine. At the bottom, the ground electrode is located, so current can flow through the engine itself to the center electrode over the gap.
Glass Seal
Mounted between the center shaft and insulator to maintain airtightness. A special mixture of glass powder and copper powder is charged in the installation section for the insulator and center shaft and center electrode and melted at high temperature. This bonds the center shaft and the center electrode and fuses the insulator and the metal.
Gasket
Makes the housing and the engine fit tightly to each other and maintains the airtightness of the combustion chamber. There is a procedure for tightening and the appropriate tightening margin must be secured.
Electrode With Copper
Special nickel alloy is used for the center electrode to reduce electrode wear. Copper is sealed into the center section to improve thermal conductivity.
Center Electrode
A new iridium alloy tip with a diameter of 0.4 mm is laser welded to the tip of the center electrode to make the center electrode. This lowers the spark voltage, secures reliable spark, reduces the quenching effect, and improves ignition performance.
U-Groove Ground Electrode
Nickel chrome material used for the ground electrode and various measures is taken with the shape to improve ignition performance.
Tapered Cut Ground Electrode
The ground electrode has a shape in which the electrode tip is cut to a finely tapered shape. This reduces the quenching effect, so it improves ignition performance.
How Do Spark Plugs Work?
Step 1: You Turn the Key in the Ignition
When you start your car by pushing the "ignition button" or inserting and turning your key, the starter motor engages, which cranks your engine.
Step 2: Energy from the Battery Ignites the Plugs
Electricity from the battery travels to an induction coil on your car's combustion engine. The battery's 12 volts are transformed to as much as 45,000 volts or more before supplying it to the spark plugs.
Step 3: Sparks Fly
As the induction coil's voltage increases and is transferred to the spark plugs, the plugs ignite the air-fuel mixture inside the combustion chamber. This process generates a small, controlled explosion in the gap between the plugs' electrodes.
Step 4: Combustion Moves Your Car
Once the air-fuel mixture ignites, a chemical reaction occurs, turning the mixture into an expanded gas or exhaust. The pressure generated by this sudden expansion within the combustion chamber moves your car's pistons, ultimately turning chemical energy into the kinetic energy required to power the engine.
Step 5: The Cycle Continues
As you continue your journey, the spark plugs power through this cycle repeatedly, helping your car run smoothly until you reach your destination.
What Are The Signs Your Spark Plugs Are Failing?
Engine Has A Rough Idle
If your Spark Plugs are failing your engine will sound rough and jittery when running at idle. This can cause vibrations to resonate through the vehicle which could cause further costly damage.
Trouble Starting
Car won’t start and you’re late for work… Flat battery? Low fuel? One often overlooked cause is Spark Plug failure. Without that crucial spark for ignition, you’ll be stuck where you are.
Engine Surging
Again, this can lead to an uncomfortable – and potentially dangerous – ride. The engine is working inefficiently, sucking in more air than is usually needed in the combustion process, causing continual stop-start motions.
Engine Misfiring
When your engine misfires it momentarily cuts out and feels jerky because the cylinders are not firing correctly. This can lead to an uncomfortable ride and higher emissions.
High Fuel Consumption
Are you filling up more than you used to? Failing Spark Plugs can really take a bite out of your fuel efficiency. A simple change of Spark Plugs could be the solution.
Lack Of Acceleration
If your vehicle feels unresponsive and the accelerator has lost its sensitivity you might consider a service with a change of Spark Plugs to get things up to speed again.
What Causes Spark Plugs To Wear Out?
A leading cause of spark plug problems is a flow of engine oil into the combustion chamber. If oil leaks into the combustion chamber, it can cause the tip of the spark plug to get oily and dirty leading to premature failure. Especially a problem in older vehicles, take notice if your vehicle starts to burn oil, as it can be an indicator that your spark plugs may be damaged, and therefore have a shorter lifespan.
Repeated overheating of the spark plug tip can cause the plug to prematurely fail. Overheating can be caused by many things like pre-ignition and a malfunctioning cooling system. Pre-ignition can lead to heat building up in the combustion chamber causing the spark plugs to fail. In addition, if the cooling system isn’t functioning correctly, it can cause the engine and spark plugs to overheat. This overheating can lead to the spark plug’s electrode wearing out faster.
Black, dry soot on the electrodes and insulator tip indicates a carbon-fouled spark plug. This carbon buildup decreases the lifespan of a spark plug and can lead to hard starts, decreased acceleration, engine misfires and the check engine light coming on. Causes of a carbon-fouled spark plug include a dirty air filter, excessive driving at low speeds, too rich of a fuel/air mixture, dirty fuel injectors or idling your vehicle for too long.
The gap between the spark plug’s center and side electrodes needs to be calibrated perfectly to ensure optimal engine performance. Having the right gap ensures that the arcing occurs at the proper voltage to ignite the fuel and generate the combustion that makes the engine run. If the gap isn’t set correctly, extra stress could be placed on the spark plug tip which could cause it to erode and wear out prematurely.
How To Gap Spark Plugs?
Measure The Gap
The first step is to figure out the size of the gap that your vehicle requires. My vehicle requires a 0.054″ spark gap. We will now measure the gap on one of the new spark plugs using our spark plug gap measuring tool. As you can see this gap is about .002″ larger than what we need.
Adjust The Gap
In order to adjust the gap we will use our spark plug gap adjustment tool. The tool uses leverage in order to increase or decrease the size of the gap. Slightly adjusting the gap takes very little force. In this case we will gently pull the lever toward the opposite side of the spark plugs electrode. Be careful not to contact the ceramic or metal core in the center of the plug as this might damage the ceramic.
Re-Measure The Gap
Once you’ve completed the adjustment it’s time to re-measure the gap. This gap adjustment was successful. We now have a gap of .054″ If you don’t get the proper gap on the first adjustment, simply repeat the process until the desired result is achieved.
Locate the spark plugs on the engine. They are typically found on the top of the engine, near the center.
Remove the ignition coil or ignition cable boot from the spark plug. Gently pull the boot free using boot pliers if necessary.
Use the spark plug socket to remove the spark plugs. The socket is designed to fit snugly around the spark plug and will protect the porcelain from cracking.
Attach the ratchet or wrench to the socket and turn counter-clockwise to loosen and remove the spark plug.
Repeat this process for each spark plug.
Inspect the spark plugs for wear or damage and replace if necessary. If they are fouled but not badly worn, use your preferred method to clean them.
Tips For Maintaining Your Spark Plugs
Inspect Wires
Find a place with sufficient lighting and open under the hood of your car. Locate the spark plug wires and do a visual inspection. Look for damages to the cables. Scorch marks and cuts. Check for signs of corrosion.
Run Your Engine
Look out for electrical sounds. Listen to the sound from your engine. Noises may be from a high voltage leak.
Use Water To Spray The Wires
Spray the areas where boots attach to spark plugs. If arcing occurs or the presence of mist switch off the engine. Remove the spark plug from the boot and look inside the boot for traces of carbon tracking. The presence of carbon tracking means that you will need to replace the spark plug.
Clean Your Spark Plugs.
Disconnect the spark plug from the spark plug lead. Clean the spark plug thoroughly to avoid debris getting into the combustion chamber. Do not force or remove the spark plug with your hands. Use the spark plug socket wrench.
Use A Spark Plug Tester
A spark miss or spark misfire can make your engine lose its power and traces of black smoke from your exhaust. Run this checklist to know if you have a plug misfire.
Confirm If The Wires To Your Spark Plug Are Routed Well
Cross-cutting drains power from your car. If your vehicle has a manual, use it to determine which wire leads to which port.
Our Certifications
Our Factory
Hangzhou Hongtu Machinery Equipment Co., Ltd. was established in 2013. HTL's service tools are designed by field experts with more than 10 years to create a unified and professional tool. HTL offers automotive tools for virtually every vehicle use and project application.
FAQ
We're professional professional socket bit manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade professional socket bit made in China here from our factory.
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