AUTOOL HTS518 Car Engine Carbon Deposition Cleaner Intake Pipe Valve Cleaning Machine Decarbonizing Auto Decarbon Wash

AUTOOL HTS518 Car Engine Carbon Deposition Cleaner Intake Pipe Valve Cleaning Machine Decarbonizing Auto Decarbon Wash

✅What Is Walnut Sand?

• Walnut sand is made from walnut shells, which are processed through strict screening and classification after being broken. It is a walnut extract and serves as a metal polishing medium. Walnut sand has high hardness, high-pressure resistance, and wear resistance, with a microporous surface. It provides strong adsorption and sewage interception ability, and it does not cause corrosion or pollution.
• Using walnut sand as an abrasive will not damage the workpiece’s surface or harm the engine when cleaning carbon deposits. The cleaning effect is remarkable, and the cost is low.
• The walnut shell abrasive size should be between 0.6~1.2 mm. Under normal conditions, walnut shell abrasive can be reused 5~10 times.

✅What Is Carbon Deposition?

• Some hydrocarbon olefin residues attach to the engine intake and cylinder when the fuel does not burn completely. It residues change into a hard black shell in high-temperature conditions, called carbon deposition.

✅Why Need Clean Carbon Deposition?

• Carbon deposition will decrease the air-fuel ratio, cut down engine output power, increase fuel consumption, engine drastic shake on idle status all the thing will hurt the engine deeply. So normally we should clean carbon deposition after every 40000-50000 kilometer trip.

✅Air Compressor Configuration

• Air pressure up to 0.7mpa, 6bar or more air pressure.
• We recommend using an air compressor equipped with a dryer filter to effectively prevent moisture buildup, which can cause walnut shell media to clump and result in poor blasting performance.

⚠️Walnut Blaster Warm Tips

• AUTOOL HTS518 walnut blaster is a special machine for the engine Intake pipe and intake valve back side.
• Close the intake valve, then spray walnut powder into the engine intake via air pump(not included), meanwhile, HTS558 will recycle walnut powder by vacuum.
• This is a closed loop. The walnut powder will impact carbon deposition on the inner wall of the intake pipe. After thousands of impacts, carbon deposition will be clear thoroughly
• A chemical cleaning agent will corrode the pipe and shorten the lifetime of the engine.
• Walnut powder is a pure natural polish material. It shows high performance in hardness, anti-pressure, and wear resistance.
• Walnut powder hardness was lower than metal but higher than carbon deposition. Take these advantages,
• AUTOOL HTS518 walnut blasting machine will clean the intake pipe and back side of the intake valve thoroughly but with no damage
• The high-precision engine system is sensitive to the foreign matter of the intake pipe, such as the BM-W Valvetronic system.
• That is why we need the AUTOOL HTS518 walnut blaster to clean the carbon deposition in the intake pipe. AUTOOL HTS518 cleans one intake pipe each time, and the 6-cylinder engine should cleaned 6 times one by one(and so on).
• AUTOOL HTS518 walnut blaster is special for the intake pipe and intake valve back side clean only, if you want to clean carbon deposition on the injector/throttle valve/cylinder, please click here to shop for Injector Cleaners.
• The package does not include walnut sand and a high-pressure air pump.
• Walnut powder residual in the intake pipe will go to ashes at a high temperature after the engine starts.

📔AUTOOL HTS518 Manual

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What is the difference between Auto Engine Decarbonizer Machine?

How to Choose a Walnut Shell Blasting Machine？

Comparison: AUTOOL HTS678 vs HTS728 Walnut Shell Sand Blaster?

The AUTOOL HTS678 features a rated power of 1800W and is equipped with a high-efficiency particulate air (HEPA) filter, ensuring a cleaner working environment. It model incorporates a three-section telescoping handle design for ease of operation and mobility, and offers two operating modes—Standard Mode and Expert Mode—to accommodate different user needs. Pressure regulation is conveniently controlled via a dedicated knob, and the machine is fitted with a pressure gauge to monitor operational safety.

In contrast, the AUTOOL HTS728 Walnut Shell Sand Blaster is an upgraded version of the HTS678. This model utilizes finer walnut shell abrasive (0.4–0.6mm), making it ideal for more precise engine cleaning tasks. The most significant difference is that the AUTOOL HTS728 supports engine combustion chamber cleaning.

Comparison: AUTOOL HTS558 vs HTS559 vs HTS518 Walnut Blaster?

The AUTOOL HTS558 is the basic model of the walnut blaster, featuring a rated power of 1200W and equipped with 5 types of adapters to meet different user needs. It is highly suitable for individual users or workshops.

The AUTOOL HTS559 is an upgraded version of the HTS558, with a rated power of 1400W and a 30L main unit capacity, offering greater efficiency and durability.

Compared with the HTS559, the AUTOOL HTS518 supports High/Low Mode and Low-Speed Mode, allowing users to choose between different cleaning modes according to the application.

All three walnut shell sandblasting machines share the same core functionality. The main differences lie in power output and main unit capacity, allowing users to select the most suitable model based on their budget and operational requirements.

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AUTOOL HTS518 Walnut Blaster Features

• External Air Source Design:  The walnut blaster has a powerful 1400W motor and uses an external air source for continuous power. This enhances the impact force of the walnut shell abrasive, ensuring thorough removal of carbon deposits from the engine pipes.
• Deep Removal of Carbon Deposits: Deeply removes the highly sticky carbon deposits on the intake manifold, intake & exhaust valves. (Solve the problems of unstable idling, insufficient fuel combustion, and reduced air-fuel ratio.)
• Multiple Adapters:  The AUTOOL HTS518 walnut blaster with 23 kinds of adapters, this tool is highly versatile, making it suitable for a wide range of models. For example, it works with BMW, Volkswagen, Mercedes-Benz, GM, VOLVO, NISSAN, and many more.
• Integrated Design: The walnut shell sand blaster not only performs spraying and recovery simultaneously but also ensures efficient cleaning. Moreover, the filter effectively separates the walnut shell abrasive from the carbon deposits, thus allowing the abrasive to be reused. At the same time, it prevents residual particles from damaging the exhaust system at high temperatures. As a result, the cleaning process becomes both effective and safe.
• Built-in Dust Filter: It can separate the recovered walnut sand grit from carbon deposits for recycling.
• User-Friendly: The rear storage box is designed to store adapters, and the telescopic rod offers three adjustable height levels. Equipped with swivel casters, the unit can rotate 360°, allowing technicians to easily move the equipment during maintenance.
• 3-Year Warranty: For damage caused by non-human factors, we promise to resend parts for free within 3 years.

How To Use the AUTOOL HTS518 Walnut Blaster?

• Step 1: First, open the headcover of the AUTOOL HTS518 walnut blaster. Next, pour in 2-4KG of walnut powder. Then, press the dust guard firmly onto the walnut powder. Finally, close the cover securely.
• Step 2: Join the spray gun muzzle and recycle the hose together. (there is a hole in the recycle hose)
• Step 3: Remove the intake manifold of the engine, plug the spray gun into the intake, and turn the crankshaft to close the intake valve. Then connect the high-pressure air pump((not included)) to HTS518.
• Step 4: Connect AC power, and start clean. The process should last 1-3 minutes. (depending on carbon deposition circumstances)
• Step 5: Close AUTOOL HTS518, check cleaning result. Normally the walnut powder can be reused 5-10 times. (depending on carbon deposition circumstances)

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