Pic. 2.56. Checking and lapping cylinder diameters, (page 46)
1, 2, 3. Measuring points,
A. Longitudinal dimension,
B. Transverse dimension,
A. Upper position of the upper compression ring,
b. BDC piston,
With. Lower position of the oil scraper ring.
Table 2.4. Checking cylinder diameters (shell casings)