Diesel injector sleeve remover

Abstract

A tool for removing a Diesel Injector Sleeve from a Diesel engine head is built of a split, threaded expander section within which is mounted at plunger having an angled end. The plunger extends to form a handle upon which slides a weighted hammer section. The tool is inserted into the neck of an injector tube. A downward blow with the hammer drives the expander over the plunger, expanding the threads into the sidewall of the tube and creating a positive connection with the injector tube. An upward blow then pulls the plunger into the expander, maintaining a positive connection and imparting an upward force that draws the entire tube out of the head. The expander preferably has a screw thread so that the injector tube may be removed from the tool by twisting it off the expander. The tool will engage and pull an injector tube with only a partial thread engagement. A simple insertion and blow sets the expander into the injector tube; a reverse blow pulls the injector tube without requiring removal of the engine head.

Dependencies are inferred from the claim text.