Abstract: Method of depositing an Fe.sub.x O comprising coating onto a light metal substrate by use of wire-arc thermal spraying that propels atomized droplets by use of atomizing gases, comprising: preparing at least one surface of the light metal substrate to present an exposed essentially non-oxidized substrate surface; and thermally spraying melted droplets of a steel feedstock wire onto the prepared surface by use of propellant gases to deposit a composite coating, the gases being controlled as to content to regulate the exposure of the droplets to oxygen so that Fe.sub.x O is substantially the only iron oxide formed during spraying, x being 0.5-1.5.

Abstract: A system for hydrostatically testing a cylinder block for an internal combustion engine simulates the gas loads imposed upon the cylinder block when the engine is firing. The system includes an engine cylinder block having multiple cylinders, with pressure conduits extending from a series of hydraulic control valves to each of the operating cylinders such that hydraulic fluid is conducted into the engine cylinders at pressures and frequencies which approximate, if not exceed, the magnitude and frequency of the gas pressure loading imposed upon the operating cylinders when the engine is firing.

Abstract: An oil mist separator for a gas flow having oil particles suspended therein, comprising a separator element including a duct having an open end, a closed end and a the wall extending between said open and closed ends. The separator element further comprises a longitudinal axis extending between the open and closed ends with the longitudinal axis being parallel to the side wall. The separator element includes an inlet orifice formed in the side wall and a drain orifice formed in the side wall between the inlet orifice and closed end. The separator element also includes an impingement plate mounted within the side wall, with the impingement plate extending upward from the closed end a sufficient distance so that the impingement plate faces the inlet orifice.

Abstract: A sealed machined member comprises a casted block member having an outer surface including a machined portion and a scalloped portion which adjoins the machined portion. The scalloped portion is cast into the outer surface when the block member is casted. A wet passage is formed in the block member for containing fluid having a pressure which is greater than the pressure adjacent to the outer surface. The wet passage has a longitudinal axis which defines a passage plane. The passage plane extends between the longitudinal axis of the wet passage and the part of the outer surface nearest to the wet passage. The scalloped portion is oriented so that its longitudinal axis lies in the passage plane. The scalloped portion is recessed from the outer surface so that the scalloped portion is not machined when the outer surface is machined.