Abstract: An engine cooling system liquid insertion and removal system has an adapter disposed in a vehicle radiator service opening via which old coolant is removed from the engine system by partial vacuum applied to an old coolant container via a conduit. New coolant is introduced via the adapter by atmospheric pressure from a portable container. Conduits interconnect the engine cooling system, the old and new coolant containers, and a source of partial vacuum applied to conduits.

Abstract: An engine cooling system liquid insertion and removal system has an adapter disposed in a radiator service opening via which old coolant is removed from the engine system by partial vacuum applied to an old coolant container via a conduit, and new coolant is introduced by atmospheric pressure. Conduits interconnect the engine cooling system, old and new coolant containers, and a source of partial vacuum applied to certain conduits.

Abstract: An engine cleaning system has a cleaning solution container having a filter element therein and is adapted to establish a predetermined quantity of solution for a particular engine. Solution is pumped from the solution container to the engine interior by the engine oil pump, and a solution drain line connects the engine interior and the solution container. Oil and cleaning solution are pumped by the engine oil pump continuously during the cleaning process. The solution container has a removable closure for filter replacement and a drain valve for solution and oil.

Abstract: An engine oil system cleaning apparatus has a cleaning solution delivery line connected by an adapter to a running engine, and an exit line and a return line from the engine connected at an adapter at the engine oil pan. A fail-safe loop flow circuit, including the exit line and solution delivery line, is provided upon sensing of a pressure drop in the delivery line to operate valves to effect flow through the fail-safe circuit.

Abstract: Carbon deposits and related residue are removed from he internal surfaces of components of an internal combustion engine, particularly the fuel ports of a carbureted engine and the injection nozzles of a fuel injection engine, by circulating an engine conditioning fuel, through the engine utilizing a conditioning fuel pump, preferably driven by a fluid driven motor, for pumping conditioning fuel to the engine. The conditioning apparatus can detect leakage of the fuel pressure regulator of a fuel injected engine and can operate in both a one-line mode in which conditioning fuel flows one way from the apparatus to the engine and a two-line mode wherein the conditioning fuel is recirculated through the engine and conditioning apparatus. A preferred embodiment provides diagnostic features for checking the conditioning apparatus and certain engine components.

Abstract: An aquatic sampling device is provided, said aquatic sampling device comprising generally a plurality of two parallel vertical members, a plurality of two parallel horizontal members, a plurality of two support cross members, and a flexible net. Said plurality of two parallel vertical members being pivotally and slidably attached to said plurality of two parallel horizontal members by means of a plurality of two pins on said plurality of two parallel horizontal members extending through a plurality of two slots in said plurality of two vertical members. Said plurality of two parallel vertical members pivoting from resting horizontally against said plurality of two parallel horizontal members to 90 degrees or perpendicular to said plurality of two parallel horizontal members. Said plurality of two parallel vertical members being further attached to said plurality of two parallel vertical members by a plurality of two flexible cords.

Abstract: A method and apparatus for removing internal carbon deposits and related residue and contaminants from fuel injected and carbureted internal combustion engine systems by delivering fuel to the inlet of the engine fuel pump while the engine is cranked by battery power to start the engine and then delivering an engine conditioning fuel, which is a mixture of normal engine fuel and a carbon cleaning agent, to the fuel pump inlet so that the conditioning fuel passes through and removes carbon deposits from the engine fuel injectors or carburetor, as the case may be, and is then combusted in the engine cylinders to power the engine. The effectiveness of the carbon cleaning operation is determined by monitoring the flow rate of normal engine fuel to the engine.

Abstract: A method and apparatus for removing internal carbon deposits and related residue and contaminants from fuel injected and carbureted internal combustion engine systems by delivering fuel to the inlet of the engine fuel pump while the engine is cranked by battery power to start the engine and then delivering an engine conditioning fuel, which is a mixture of normal engine fuel and a carbon cleaning agent, to the fuel pump inlet so that the conditioning fuel passes through and removes carbon deposits from the engine fuel injectors or carburetor, as the case may be, and is then combusted in the engine cylinders to power the engine. The effectiveness of the carbon cleaning operation is determined by monitoring the flow rate of normal engine fuel to the engine.

Abstract: Carbon deposits and related residue and contaminants are removed from the fuel ports and internal surfaces of an internal combustion engine fuel system, particularly fuel injectors, carburetors, fuel pumps, fuel passages, and the like, by initially utilizing a priming pump to pump priming fuel to the engine from an external fuel source while the engine is being cranked to start the engine and then utilizing the engine fuel pump to pump a combustible, carbon removing conditioning fuel from the fuel source through the engine fuel system along a flow path which by-passes the priming pump so as to avoid restriction of the conditioning fuel flow by the priming pump and thereby increase the conditioning fuel flow rate sufficiently to permit simultaneous servicing of several engines.

Abstract: A fuel-measuring flow system for diesel engines that provides a continuous metered flow of fuel from the storage tank to the operating engine, wherein a flow meter defined by a transducer having a metering orifice therein is located between the tank and injector pump of the engine to establish an accurate reading as to the amount of fuel being used by the engine, the returning unburned fuel being cooled and mixed with the fuel from the tank after the stored fuel passes through the flow meter. The system further includes a relay-valve device and a manifold member whereby the unburned fuel and stored fuel are mixed together prior to being pumped to the engine.