Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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2004 Mazda B4000 4WD V6-4.0L SOHC
Units
2004 Mazda B4000 4WD V6-4.0L SOHCSECTION Units
Conversion to SI Units (Systeme International d'Unites)



All numerical values in this manual are used on SI units Numbers shown in conventional units are converted from these values.
Rounding Off
Converted values are rounded off to the same number of places as the SI unit value For example, if the SI unit value is 17.2 and the value after conversion is 37.84, the converted value will be rounded off to 37.8.
Upper and Lower Limits
- When the data indicates upper and lower limits, the converted values are rounded down if the SI unit value is an upper limit and rounded up if the SI unit value is a lower limit Therefore, converted values for the same SI unit value may differ after conversion For example, consider 2.7 kgf/sq.cm in the following specifications:
210-260 kPa {2.1 - 2.7 kgf/sq.cm, 30 - 38 psi
270 - 310 kPa {2.7 - 3.2 kgf/sq.cm, 39 - 45 psi
- The actual converted values for 2.7 kgf/sq.cm are 264 kPa and 38.4 psi In the first specification, 2.7 is used as an upper limit, so the converted values are rounded down to 260 and 38. In the second specification, 2.7 is used as a lower limit, so the converted values are rounded up to 270 and 39.
All numerical values in this manual are used on SI units Numbers shown in conventional units are converted from these values.
Rounding Off
Converted values are rounded off to the same number of places as the SI unit value For example, if the SI unit value is 17.2 and the value after conversion is 37.84, the converted value will be rounded off to 37.8.
Upper and Lower Limits
- When the data indicates upper and lower limits, the converted values are rounded down if the SI unit value is an upper limit and rounded up if the SI unit value is a lower limit Therefore, converted values for the same SI unit value may differ after conversion For example, consider 2.7 kgf/sq.cm in the following specifications:
210-260 kPa {2.1 - 2.7 kgf/sq.cm, 30 - 38 psi
270 - 310 kPa {2.7 - 3.2 kgf/sq.cm, 39 - 45 psi
- The actual converted values for 2.7 kgf/sq.cm are 264 kPa and 38.4 psi In the first specification, 2.7 is used as an upper limit, so the converted values are rounded down to 260 and 38. In the second specification, 2.7 is used as a lower limit, so the converted values are rounded up to 270 and 39.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.