Guteauto 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 - 230410gu0025

• 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.