Valvetrain service tool
AssigneeGM Global Technology Operations LLC
InventorsGianfranco Badellino, Fabrizio Binello, Antonino Barresi, Francesco Zangallo
Life of this patent
Estimating the term…
Abstract
A valvetrain service tool for an automobile engine comprises a bracket adapted to be removably mounted onto a structural member of an engine, and a pin slidably supported within the bracket, wherein, the pin is slidable between a first position and a second position, further wherein, when the pin is moved from the first position to the second position, the pin engages a cam sprocket of the engine to support the cam sprocket and allow service to be performed to the valvetrain of the engine without removing the cam sprocket.
Claims20
A valvetrain service tool for an automobile engine, comprising:
- a bracket adapted to be removably mounted onto a structural member of an engine;
- and
- a pin slidably supported within the bracket;
- wherein the pin is slidable between a first position and a second position and when the pin is moved from the first position to the second position, the pin engages a cam sprocket of the engine to support the cam sprocket to allow service to be performed to the valvetrain of the engine without removing the cam sprocket.
A method of using a valvetrain service tool comprising:
- mounting a valvetrain service tool onto a structural member of an engine;
- sliding a pin of the valvetrain service tool from a first position to a second position, wherein a first distal end of the pin engages a cam sprocket of the engine;
- sliding the pin, along with the cam sprocket supported thereon, from the second position to the first position;
- servicing a valvetrain component of the engine while the cam sprocket is supported on the first distal end of the pin;
- sliding the pin, along with the cam sprocket supported thereon, from the first position to the second position;
- sliding the pin of the valvetrain service tool from the second position to the first position and dis-engaging the first distal end of the pin from the cam sprocket of the engine;
- and
- removing the valvetrain service tool from the structural member of the engine.
A valvetrain service tool for an automobile engine, comprising:
- a bracket adapted to be removably mounted onto a surface of an engine block of an engine, the bracket including a hub having a cylindrical bore formed therein, a slot formed within the hub extending longitudinally along the cylindrical bore, and a pair of flanges extending from opposite sides of the hub, each flange including a bore adapted to receive a fastener extending therethrough to secure the bracket to the engine block;
- a pin slidably supported within the cylindrical bore and slidable longitudinally within the cylindrical bore between a first position and a second position, the pin including a stop extending radially from an outer diameter of the pin and through the slot formed within the bracket, wherein the stop secures the pin within the cylindrical bore of the bracket and when the pin is in the first position the stop is adjacent a first end of the slot and when the pin is in the second position the stop is adjacent a second end of the slot;
- and
- wherein, when the pin is moved from the first position to the second position, a first distal end of the pin engages a cam sprocket of the engine to support the cam sprocket and allow service to be performed to the valvetrain of the engine without removing the cam sprocket.
Dependencies are inferred from the claim text.