Answer :
Final answer:
The tool used to measure crankshaft endplay is a dial indicator, which accurately detects axial movement. Micrometers and telescoping gauges are unsuitable for this purpose, as they measure different dimensions. A dial indicator is specifically designed for measuring such displacements.
Explanation:
Understanding Crankshaft Endplay Measurement
To measure crankshaft endplay, the most commonly used tool is a dial indicator. This instrument provides precise measurements of the crankshaft's axial movement by detecting changes in its position. Unlike a micrometer or a telescoping gauge, which are used for measuring thickness or diameter and do not measure displacement along an axis, a dial indicator is specifically designed for this purpose.
Here’s a brief overview of the tools mentioned:
- Micrometer - Typically used for measuring small dimensions with high precision, but not suitable for axial measurements.
- Dial Indicator - Ideal for measuring endplay as it can easily indicate the movement of the crankshaft along its mounting axis.
- Telescoping Gauge - Used for measuring internal dimensions, but it does not measure axial play.
- Torque Angle Meter - Used for measuring angles during torque applications, not applicable for measuring crankshaft endplay.
Thus, for measuring crankshaft endplay accurately, the dial indicator is the correct choice.
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