what tools determine the pump cover flatness?

To determine pump cover flatness, tools such as a precision straightedge, feeler gauges, and a dial indicator are commonly used. A straightedge can help identify any gaps or warping along the surface, while feeler gauges measure the specific distance between the cover and the straightedge. A dial indicator can provide precise measurements of any deviations in flatness across the cover's surface. Using these tools together ensures a thorough assessment of the pump cover’s flatness.