Patent ID: 7013857

Claim:
An assembly, comprising: a) a socket body including a forgeable material and provided with: i) an outer socket surface, a first socket surface, a second socket surface, and a socket passage; ii) the outer socket surface is at least in part configured to cooperate with a lash adjuster body; iii) the first socket surface includes a push rod cooperating surface and defines a first socket hole; iv) the second socket surface defines a second socket hole and is provided with a protruding surface, a first flat surface, and a second flat surface, wherein the protruding surface is located between the first flat surface and the second flat surface; v) the socket passage links the first socket surface and the second socket surface; b) a leakdown plunger includes: i) a first plunger opening, a second plunger opening, and an outer plunger surface that is provided with an axis and encloses an inner plunger surface; ii) the first plunger opening is provided with a first annular plunger surface shaped to accommodate a valve insert; iii) the second plunger opening is configured to cooperate with the socket body and is provided with a second annular plunger surface; iv) the outer plunger surface includes a cylindrical plunger surface and cooperates with the lash adjuster body to define a cavity between the lash adjuster body and the outer plunger surface; v) the inner plunger surface includes: 1) a first inner cylindrical plunger surface that is provided with a first inner diameter, is located at the fist plunger opening, and terminates at the first annular plunger surface; 2) a second inner cylindrical plunger surface that is provided with a second inner diameter, is located at the second plunger opening, and terminates at the second annular plunger surface; 3) a third inner cylindrical plunger surface that is located adjacent to the second annular plunger surface and provided with a third inner diameter that is smaller than the second inner diameter of the second inner cylindrical plunger surface; c) the lash adjuster body includes: i) a lash adjuster opening and an outer lash adjuster surface enclosing a lash adjuster cavity that is provided with an inner lash adjuster surface; ii) the inner lash adjuster surface includes: 1) a first cylindrical lash adjuster surface that is provided with a first inner lash adjuster diameter that terminates at an annular lash adjuster surface; and 2) a second cylindrical lash adjuster surface that is provided with a second inner lash adjuster diameter that is smaller than the first inner lash adjuster diameter.