2. Terms Used in This Manual Nominal value ° +++ Indicates the standard dimension of a part to be measured. Standard Limit 3. ++*++++** Indicates the dimension of a part, the clearance between parts, or the standard performance. Since the value is indicated in a range needed for inspection, it is different from the design value. +++++++++++ A part must be repaired or replaced with a new part when it reaches the limit value. Abbreviations, Standards, Etc.
- BTDC = Before Top Dead Center * ATDC = After Top Dead Center ~ BBDC = Before Bottom Dead Center * ABDC = After Bottom Dead Center « TIR = Total Indicated Reading - API = American Petroleum Institute - ASTM = American Society for Testing and Materials * JIS = Japanese Industrial Standards ...* LLC = Long Life Coolant... - e ee * MIL = Military Specifications and Standards (U.S.) « MSDS = Material Safety Data Sheet * SAE = Society of Automotive Engineers (U.S.) 4. Units of Measurement Measurements are based on the International System of Units (SI, and their converted metric values are indicated in parentheses (). For metric conversion, the following rates are used. -Pressure:
1 MPa = 10.197 kgf/cm? *Torque: 1 N-m = 0.10197 kgf-m -Force: 1 N = 0.10197 kgf «Horsepower: 1 kW = 1.341 HP = 1.3596 PS «Meter of mercury: 1 kPa = 0.7 cmHg ‘Meter of water: 1 kPa = 10.197 cmH,O (cmAq) -Rotational speed: 1 min! = 1 rpm