Abstract: A tool for retracting pistons into cylinder bores is disclosed, with a narrow gap between facing pressure plates allowing use of the tool in tight places, and ratcheting spreading of the facing pressure plates causing outward moving of the pistons, enabling work to be performed, wherein movement of a threaded stud through a coupler moves a first pressure plate.

Abstract: A tool for retracting pistons into cylinder bores is disclosed, with a narrow gap between facing pressure plates allowing use of the tool in tight places, and ratcheting spreading of the facing pressure plates causing outward moving of the pistons, enabling work to be performed, wherein movement of a threaded stud through a coupler moves a first pressure plate.

Abstract: A tool for retracting pistons into cylinder bores is disclosed, with a narrow gap between facing pressure plates allowing use of the tool in tight places, and ratcheting spreading of the facing pressure plates causing outward moving of the pistons, enabling work to be performed, wherein movement of a threaded stud through a coupler moves a first pressure plate.

Abstract: A tool for retracting pistons into cylinder bores is disclosed, with a narrow gap between facing pressure plates allowing use of the tool in tight places, and ratcheting spreading of the facing pressure plates causing outward moving of the pistons, enabling work to be performed, wherein movement of a threaded stud through a coupler moves a first pressure plate.

Abstract: A tool for retracting pistons into cylinder bores is disclosed, with a narrow gap between facing pressure plates allowing use of the tool in tight places, and ratcheting spreading of the facing pressure plates causing outward moving of the pistons, enabling work to be performed, wherein movement of a threaded stud through a coupler moves a first pressure plate.

Abstract: A pressure measuring device/system that is capable of measuring the pressures of multiple systems in an automobile, including cylinder pressure, fuel pressure, transmission oil pressure, and engine oil pressure, and is capable of displaying and/or recording the measured pressure values remote from the device taking the measured remote pressures. The pressure measuring system has a remote interface and a sensor configured to communicate wirelessly with each other. The interface may be configured to be included within the device purpose built for displaying and interacting with the pressure values measured by the sensor. Additionally or alternatively, the interface may be configured to be downloaded as a mobile application “app” on a smartphone or other similar device.

Abstract: A pressure measuring device/system that is capable of measuring the pressures of multiple systems in an automobile, including cylinder pressure, fuel pressure, transmission oil pressure, and engine oil pressure, and is capable of displaying and/or recording the measured pressure values remote from the device taking the measured remote pressures. The pressure measuring system has a remote interface and a sensor configured to communicate wirelessly with each other. The interface may be configured to he included within the device purpose built for displaying and interacting with the pressure values measured by the sensor. Additionally or alternatively, the interface may he configured to he downloaded as a mobile application “app” on a smartphone or other similar device.

Abstract: A split re-threading die includes two halves pivotally attached to each other and defining a through-bore and a hexagonal external surface when closed. Each half has inward facing teeth at the free end. The through-bore is configured to receive an externally threaded fastener to be re-threaded and the hexagonal external surface is configured to be received within a mechanical socket. The teeth rethread the fastener as the die is turned and the teeth traverse the threads of the fastener.

Abstract: An adjustable holding tool is provided for servicing a fan clutch assembly removably attached to a shaft of a water pump having a pulley associated therewith. A holding tool is comprised of a first plate holder including a first adjustment leg joined to a first attachment leg having a first longitudinal axis and a first attachment structure. A second plate holder includes a second adjustment leg joined to a second attachment leg having a second longitudinal axis and second attachment structure. The first and second plate holders are slidably connected together to provide a continuous variable spacing between the first and second adjustment legs while maintaining a parallel relationship between the first and second longitudinal axes.

Abstract: A tool adapted to be used with a filter cap having an engagement structure includes a body having an upper end and a side wall extending from the upper end and terminating in a lower open end. The side wall is formed with a plurality of notches extending upwardly from the lower open end and adapted to receive the engagement structure of the filter cap. The notches define a set of spaced apart engaging members which form a driven head receiving structure adapted to matingly and non-rotatably receive the engagement structure of the filter cap. The body is engagably disposed over the engagement structure, and the body together with the filter cap is rotated in a clockwise or counterclockwise direction.

Abstract: The test probe comprises a handle and a rod, the rod including a flat face which can be placed against an electrical terminal to be tested. The rod includes a loop residing in a cavity in the handle. An alligator clip may be applied to the loop.