AUTOOL HTS558 Walnut Sand Carbon Removal Cleaner is an entry-level engine carbon cleaning device. It provides cleaning and maintenance to the engine while keeping the engine running properly at a consistently high quality.The HTS558 Engine Carbon Cleaner Walnut is uniquely designed to be easy to maneuver with its relatively small size and power, and is equipped with a high quality motor that effectively removes carbon and restores the car's power to a potent state. ![]() | ||||||||
Why Choose AUTOOL Walnut Sand De-Carbon Cleaner ? ✅Deep removal of carbon deposits AUTOOL HTS558 Walnut Sand Engine Carbon Cleaner uses professional physical and harmless walnut grit blasting technology to efficiently and non-destructively clean engine carbon. For example, it is suitable for BMW's turbocharged 6-cylinder engine to effectively clean and de-carbonize the intake ports and intake valves, saving you hundreds of dollars by going to a BMW dealer for this service. ✅ Solve the problems of unstable idling, insufficient fuel combustion, and reduced air-fuel ratio. Walnut grit is injected into the engine intake tube and the back of the intake valves through a high pressure air stream for cleaning, the intake valves are closed, and then the walnut powder is sprayed into the engine intake through the air pump (not included) while the HTS558 recycles the walnut powder through the vacuum. The walnut powder will only affect the carbon buildup on the inner wall of the intake tube, this is a closed loop repetitive process, after thousands of impacts, the carbon will be completely removed. ✅ High efficiency without damage Clean the carbon without disassembling the main parts of the engine, when you start the engine after finishing the cleaning, the walnut powder left in the intake pipe will turn into ash under high temperature and let the engine back to high quality, it's the best helper for you to keep the engine in high quality and continuous working. | ||||||||
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Safe and Undamaged Walnut sand can deeply remove sticky carbon deposits on intake manifold, intake valve and exhaust valve without damaging them. Walnut sand residual in intake pipe will go to ashes at high temperature after engine cranking to avoid damaging automotive exhaust systems & parts. | External Air Source Design The use of external air source can provide continuous external power during the cleaning work, so as to promote the walnut sand particles to more strongly impact the carbon deposition in the pipeline, and more comprehensively complete the carbon deposition removal work. | Built-in Filter Screen Built in filter screen can separate the recycled walnut gravel from the carbon deposit for secondary utilization. |
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Practicality The overall structure design is simple and light, beautiful and compact, and has strong practicability. With universal pulley, it can move 360° in all directions, which is convenient and labor-saving. | Integrated Design When the sprayed walnut sand impacts and deposits carbon, the walnut sand particles will be recycled in the equipment at the same time, without manual recycling, saving time and effort. | High Efficiency When the high-pressure air flow and walnut sand are injected into the closed engine intake manifold, they will roll and collide rapidly inside, forming a closed loop of continuous injection and suction, so as to quickly remove the carbon deposits inside. |
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What is carbon deposition? Why need to clean carbon deposition? What is walnut powder? Precautions for use: 1 The pressure of the air pump should be more than 0.7Mpa (7bar/102PSI) You need to prepare your own air compressor. 2 Walnut particle size should be between 0.4-0.8mm and the dosage should be between 2-3KG. 3 Cleaning time between 1-3 minutes. |
Steps to use AUTOOL HTS558 | |||
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STEP1 Join spary gun muzzle and recycle hose together (there is a hole on recycle hose). | STEP2 Open head cover of AUTOOL HTS558 and pour into walnut powder (need 2-3KG ), press dust guard on walnut powder then close cover. | STEP3 Remove intake manifold of engine, plug spary gun into intake, turn crankshaft to close intake valve. Connect air pump((not include)) to HTS558. | STEP4 Connect AC power, start clean. The process should last 1-3minutes(depending on carbon deposition). Normally, walnut powder can be reuse 5-10 times. |
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Packing List 1piece * AUTOOL HTS558 Engine Carbon Cleaner unit 1piece * Spray gun 1piece * Spray gun nozzle 1piece* Goggles 1piece * Recycle hose 2pieces * spray gun connector 2 pieces* Walnut Grit Shells (1 kg/2.2 lbs per package 4.4 lbs total) 5pieces * Spray nozzle adaptation 1piece * User manual ![]() ![]() |

