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 MANUALSMAZDA2001626 ES V6-2.5L DOHCREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYPISTON RING, ENGINE
2001 Mazda 626 ES V6-2.5L DOHC
Piston Ring, Engine
2001 Mazda 626 ES V6-2.5L DOHCSECTION Piston Ring, Engine
Piston Ring
Piston Ring-To-Ring Groove Clearance
Top 0.020 - 0.065 mm (0.008 - 0.0025 inch)
Second 0.030 - 0.065 mm (0.0012 - 0.0025 inch)
Oil 0.07 - 0.16 mm (0.0028 - 0.0062 inch)
Maximum 0.15 mm (0.0059 inch)
End Gap (measured in cylinder)
Top 0.15 - 0.30 mm (0.0060 - 0.0118 inch)
Second 0.25 - 0.40 mm (0.0099 - 0.0157 inch)
Oil (rail) 0.20 - 0.70 mm (0.0079 - 0.0275 inch)
Maximum 1.0 mm (0.0394 inch)
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.