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 MANUALSMAZDA2008TRIBUTE S SPORT, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 17 (ENGINE MECHANICAL)ENGINE SPECIFICATIONSENGINE VALVES & VALVE SPRINGS SPECIFICATIONS
2008 Mazda Tribute s Sport, 4WD
Engine Valves & Valve Springs Specifications
2008 Mazda Tribute s Sport, 4WDSECTION Engine Valves & Valve Springs Specifications
WARNING: This page is about a different car, the 2001 Mazda MPV and 2000 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
VALVES & VALVE SPRINGS
| Application | Specification | |||
|---|---|---|---|---|
| Intake Valves | ||||
| Face Angle | 45° | |||
| Head Diameter | (1) | |||
| Minimum Margin | (1) | |||
| Minimum Refinish Length | (1) | |||
| Stem Diameter | .2352-.2360" (5.975-5.995 mm) | |||
| Valve Tip Maximum Refinish | (1) | |||
| Exhaust Valves | ||||
| Face Angle | 45° | |||
| Head Diameter | (1) | |||
| Minimum Margin | (1) | |||
| Minimum Refinish Length | (1) | |||
| Stem Diameter | .2343-.2350" (5.950-5.970) | |||
| Valve Tip Maximum Refinish | (1) | |||
| Valve Springs | ||||
| Free Length | (1) | |||
| Installed Height | (1) | |||
| Out-Of-Square | .00184 (.468) | |||
| Lbs.@ In. (kg @ mm) | ||||
| Compressed Length | 152 @ 1.189 (69.3 @ 30.19) | |||
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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.