Lisle 19700 Valve Holder , black
Brand: Lisle
Color: black
Commonly used when valve springs or valve stem seals are replaced
Comes with two-step fitting for both 14 millimeter and 18 millimeter threads
Thread fitting to spark plug hole and other end to air supply
Heavy duty 12" flexible hose allows easy access to spark plug hole and air supply
Air pressure helps prevent the valve from falling into the combustion chamber