Abstract: A method and apparatus is provided that includes a hand pump having a handle locking mechanism, a counter bored nut, pivoting links, and unlocking valve assembly. The unloading valve assembly allows a pump operator to pump a larger volume of hydraulic fluid and/or to pump to higher pressures in first stage operation than a conventional pump which employs a direct-acting relief valve. The unloading valve also decreases the effort required to pump the handle during second stage operation. The handle locking mechanism allows the pump handle from moving during transporting and storing of the hand pump. The counter bored nut allows for more reservoir room than conventional hand pumps. The pivoting link allows for greater leverage of the handle during pumping.

Abstract: An apparatus and method for installing and removing a recessed spark plug to and from an engine without a component thereof becoming disengaged. The spark plug tool is long enough to reach a recessed spark plug and includes a first housing member having an opening fitted with an elastomeric sleeve for receiving a spark plug, a shaft that may be integrally connected to the first housing member, and a second housing member which may be integrally connected to the shaft. The second housing member can be coupled to a torque member.

Abstract: A method and apparatus for adjusting the height of a fuel injector in an engine assembly by providing a variable fuel injector height gauge, selecting a height on the gauge, setting the height on the gauge and adjusting the height of the fuel injector in accordance with the height of the gauge.

Abstract: A chartered type MacPherson strut spring compressor having a pivot adapter to permit force from the head of a forcing screw to the open surface of a trunion.