(Feedback after taking the tests) These measurements were not asked about on the test!
This video shows how to measure some of the basic valve, valve spring, and valve guide measurements. These measurements include: valve free height, spring squareness, spring pressure, valve length, valve stem diameter, valve face diameter, valve margin, valve guide inner diameter, and how to calculate valve stem-to-guide clearance. The components shown came from a 2011 Mazda 6 2.5L engine.