A device (1) for measuring a valve seat formed in a piece has an elongate shape and defines a longitudinal axis (A), and includes: a slide (9), slidingly coupled to a guide (11) for translating in a scanning direction (B) inclined to the longitudinal axis; a sensor (10), mounted on the slide for measuring a parameter relating to a profile of the seat; a processing unit connected to the sensor; a rotary actuator (13) defining a longitudinal rotation axis substantially parallel to the longitudinal axis of the device; and a transmission assembly interposed between the rotary actuator and the slide for transforming a rotary motion about a longitudinal rotation axis in a reciprocating linear motion of the slide along the scanning direction.

A valve clearance measuring assembly includes a panel having a first side, a second side, a forward edge and a rearward edge. The forward edge is extendable between a valve tip and a rocker arm. The first and second sides of the panel each are planar and orientated planar with respect to each other. A head includes a central member and a pair of arms. The arms extend in a generally same direction with respect to each other to define a space between the arms. The panel is attached to the arms and traverses the space. The forward edge is in static communication with the arms such that the forward edge is in a linear configuration as the forward edge traverses the space.

A measurement device according to one embodiment of the present disclosure is a measurement device that measures a position of an annual part to be measured that is arranged at an opening edge of a hole formed in a member to be measured, and the measurement device includes: a probe that is displaceable in an axial direction; a holder that holds the probe; and a measurement instrument that measures displacement of the probe in the axial direction. The probe includes an inclined portion at an tip end of the probe, the inclined portion being inclined relative to a central axis of the probe at an angle equal to an angle defined between a central axis of the hole in the member to be measured and a horizontal plane in a state in which the member to be measured is mounted on the horizontal plane.

A valve clearance measuring assembly includes a panel having a first side, a second side, a forward edge and a rearward edge. The forward edge is extendable between a valve tip and a rocker arm. The first and second sides of the panel each are planar and orientated planar with respect to each other. A head includes a central member and a pair of arms. The arms extend in a generally same direction with respect to each other to define a space between the arms. The panel is attached to the arms and traverses the space. The forward edge is in static communication with the arms such that the forward edge is in a linear configuration as the forward edge traverses the space.

A self-adjusting pushrod length checking tool for use in an internal combustion engine between the camshaft lifter and valve rocker arm, that determines the optimum pushrod length using a telescoping spring-loaded body upper rod and a lower rod assembly. The spring-loaded telescoping assembly self-adjusts and determines the optimum pushrod length when compressed and inserted between the camshaft and valve rocker arm, when the rocker arm pivot bolt is fully tightened down to the cylinder head. The telescoping assembly sections are then locked by a captive set screw, the assembly is removed from the engine, and accurate measurements of the assembly length are taken.

A valve clearance measuring assembly includes a panel having a first side, a second side, a forward edge and a rearward edge. The forward edge is extendable between a valve tip and a rocker arm. The first and second sides of the panel each are planar and orientated planar with respect to each other. A head includes a central member and a pair of arms. The arms extend in a generally same direction with respect to each other to define a space between the arms. The panel is attached to the arms and traverses the space. The forward edge is in static communication with the arms such that the forward edge is in a linear configuration as the forward edge traverses the space.

A valve clearance measuring assembly includes a panel having a first side, a second side, a forward edge and a rearward edge. The forward edge is extendable between a valve tip and a rocker arm. The first and second sides of the panel each are planar and orientated planar with respect to each other. A head includes a central member and a pair of arms. The arms extend in a generally same direction with respect to each other to define a space between the arms. The panel is attached to the arms and traverses the space. The forward edge is in static communication with the arms such that the forward edge is in a linear configuration as the forward edge traverses the space.

In one embodiment, systems and methods include using an eddie-bolt inspection tool to measure one or more eddie-bolts. An eddie-bolt inspection tool comprises a body; a valve; a light-emitting diode (LED); a battery; a first position switch; a second position switch; a cap; a nose piece; and a cover; wherein the cap is disposed on top of the body, wherein the body is disposed on top of the nose piece, where the nose piece is at least partially disposed within the body, wherein the cover is disposed around and on at least a portion of the body, wherein the body comprises: a first side; a second side; a third side; a fourth side; and an opening.

A self-adjusting pushrod length checking tool for use in an internal combustion engine between the camshaft lifter and valve rocker arm, that determines the optimum pushrod length using a telescoping spring-loaded body upper rod and a lower rod assembly. The spring-loaded telescoping assembly self-adjusts and determines the optimum pushrod length when compressed and inserted between the camshaft and valve rocker arm, when the rocker arm pivot bolt is fully tightened down to the cylinder head. The telescoping assembly sections are then locked by a captive set screw, the assembly is removed from the engine, and accurate measurements of the assembly length are taken.

In one embodiment, systems and methods include using an eddie-bolt inspection tool to measure one or more eddie-bolts. An eddie-bolt inspection tool comprises a body; a valve; a light-emitting diode (LED); a battery; a first position switch; a second position switch; a cap; a nose piece; and a cover; wherein the cap is disposed on top of the body, wherein the body is disposed on top of the nose piece, where the nose piece is at least partially disposed within the body, wherein the cover is disposed around and on at least a portion of the body, wherein the body comprises: a first side; a second side; a third side; a fourth side; and an opening.