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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HOMESERVICE MANUALSMAZDA2009B2300 L4-2.3LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER HEAD ASSEMBLYVALVE SPRING
2009 Mazda B2300 L4-2.3L
Valve Spring
2009 Mazda B2300 L4-2.3LSECTION Valve Spring
Valve Spring Specifications
Valve protrusion height
Standard
IN: 40.64-42.24 mm (1.6O0-1.662 in)
EX: 40.50-42.10 mm (1.595-1.657 in)
Valve spring pressing force 390 Nm (39.76 kgf, 87.67Ibf)
Valve spring standard height 28.68 mm (1.129 in)
Valve spring out-of-square
Maximum 1.95 mm (0.0767 in)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.