Engine Air Valve Holder Pressure Pipe Cylinder Leakage Testing Assistant Tool with Ball Valve M12 M14 Thread to 1/4 NPT Universal for Mustang Ford GM Trucks LS Engine Item Description Used with M14 or M12 spark plugs in gasoline engine cylinders; the spark plug must be removed prior to installation of this tool. The majority of LS engines may be used in gasoline-powered vehicles like cars, trucks, boats, motorcycles, ATVs, and UTVs. Not for use with diesel engines When replacing valve springs or valve stem seals, pressurized air can help maintain the valve closed by pressurizing the cylinder. assist in swiftly determining the cause of low cylinder pressure (Exhaust pipe leak or Throttle leak) Install the joint on the location of the spark plug when using a 300Psi/20Bar pressure tube with M12 and M14 thread to NPT. For convenience, there is a 1/4" NPT quick coupler male plug for the air compressor and pump. Take note of the operating pressure range of 30psi?P?110psi(2bar?P?8bar). Use sturdy rubber tube and brass fitting connections for durability against abrasion, corrosion, and high pressure. The valve is kept from falling into the combustion chamber by air pressure. PACKAGE CONTENT -PACKAGE CONTENT - 1 Pc Engine Air Valve Holder Pressure Pipe. Please double-check before making a purchase. Please be aware that the working pressure is 30psi?P?110psi and not the mark 4500 PSI on the tube which indicates air working pressure. ? See more product details *The working pressure range 30psi?P?110psi (2bar?P?8bar). *A 1/4" NPT air compressor air pump quick coupler male plug for easy work. *300Psi/20Bar pressure tube with M12 and M14 thread to NPT, install the joint on the position of the spark plug. *Durable rubber tube and brass fitting connectors, anti-wear, high-pressure resistance, anti-corrosion, and abrasion. *Air pressure avoid the valve from falling into the combustion chamber. *The car may tremble if the cylinder pressure is insufficient. *Find the source of low cylinder pressure as soon as possible, be it valve or piston ring leakage. *Uses pressure to raise the valve without removing the cylinder head, making it easy to replace the valve oil seal. *When replacing valve springs or valve stem seals, pressurized air can help maintain the valve closed by pressurizing the cylinder. Guteauto Engine Air Valve Holder Kit is used to pressurize the cylinder to keep the valve closed under the action of compressed air. Therefore, the oil seal of the valve can be replaced without disassembly. During the compression stroke of the cylinder. You can hear the sound of continuous air leaking if the engine airtightness is inadequate. Locate the leak by listening for damaged parts. Our pressure pipe has a 1/4 NPT ball valve and an M14+M18 thread. The spark plug position must be used to install the connector for this tool. This kit is compatible with gasoline-powered vehicles like automobiles, trucks, ships, motorbikes, ATVs, and more. Not for use in automobiles with diesel engines. Why Need this Engine Air Valve Holder Pressure Pipe? Payment We accept payment only through PAYPAL Shipping We ship products worldwide through standard express courier service, it will reach within 7 to 10 days to abroad buyers, we ship the product after recieved clear payment and give full information about shipment to the buyer Return We accept product return 25 days from delivery date but product should be in original condition.