Lisle Corp.'s Valve Keeper Remover and Installer Kit, No. 36050, quickly removes and installs valve keepers on most overhead valve engines with valve stems from 4.5 to 7.5 mm and 5/16" to 3/8". Users can push or tap the tool with a hammer to remove valve keepers. Magnets in the tool body capture keepers for quick removal and valve disassembly. A new smaller size works on Toyota four cylinder and Chrysler New World Engine applications.