Abstract:
The present disclosure relates to a method for inspecting worn surface of camshaft lobes of a camshaft. The method includes providing a laser scanning device at a predetermined distance from the worn surface of the camshaft lobes, the laser scanning device being configured to scan and gather data. The method includes moving the laser scanning device along a reference axis parallel with an axis of rotation of the camshaft and repeating the scanning for each camshaft lobe of the camshaft. The method includes generating a set of data points for each camshaft lobe. The method further includes determining a maximum depth of the worn surface based on the set of data points. The method also includes selecting the camshaft lobes for a remanufacturing process, if the maximum depth of the worn surface for each measured camshaft lobe is less than or equal to a predefined tolerance limit.
Abstract:
A method for manufacturing an engine block includes removing material from the top deck of the engine block surrounding a first opening to create a first recessed area, placing a first seal within the first recessed area, positioning a first insert within the first recessed area and against the first seal. The method may also include removing material from the top deck of the engine block surrounding a second opening to create a second recessed area that at least partially overlaps the first recessed area, placing a second seal in the second recessed area and positioning a second insert within the second recessed area and against the second seal.
Abstract:
A method of remanufacturing an engine is provided. The method includes drilling a cylinder block to form at least one opening. The method further includes tapping the at least one opening to form screw threads. The method further includes securing a mounting boss to the cylinder block using the screw threads.
Abstract:
A method of remanufacturing an engine block is provided. An insert is removed from a recess in a top deck of the engine block that surrounds a cylinder bore in the engine block. A used cylinder liner is removed from the cylinder bore. The used cylinder liner has a flange on an upper edge thereof having a first thickness. The recess in the top deck of the engine block is cleaned. A replacement cylinder liner is positioned in the cylinder bore. The replacement cylinder liner has a flange on an upper edge thereof that is received in the cleaned recess. The flange of the replacement cylinder liner has a second thickness that corresponds to the sum of the first thickness and the depth of the cleaned recess.
Abstract:
A method for manufacturing an engine block includes removing material from the top deck of the engine block surrounding a first opening to create a first recessed area, placing a first seal within the first recessed area, positioning a first insert within the first recessed area and against the first seal. The method may also include removing material from the top deck of the engine block surrounding a second opening to create a second recessed area that at least partially overlaps the first recessed area, placing a second seal in the second recessed area and positioning a second insert within the second recessed area and against the second seal.
Abstract:
A self-centering seal for a counterbore with an inner passageway and a counterbore diameter defining a recessed area is described. The self-centering seal includes an annular shape including an aperture defined by an inner diameter matched to the diameter of the inner passageway, a circular outer edge having an outer diameter less than the counterbore diameter, a sealing surface at least partially disposed between the inner diameter and the circular outer edge, and a plurality of centering tabs projecting form the outer edge. The self-centering seal may, for example, be used in engine manufacture in conjunction with counterbores and inserts around fluid passages.