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.
2007 Mazda 3 L4-2.3LFACTORY OEM SERVICE PROCEDURE
System Specifications
Crankshaft pulley lock bolt
Tightening torque
1. 96-104 N-m (9.8-10.6 kgf-m, 70.9-76.7 ft-lbf)
2. 87°-93°
[LF, L3]
Engine Front Cover
Bolt No. 1-18 8.0-11.5 N-m {81.6-117.2 kgf-cm, 70.9-101.7 in-lbf}
Bolt No. 19-22 40-55 N-m {4.1-5.6 kgf-m 29.7-40.5 ft-lbf}
Bolt No. 23 20-30 N-m {2.1-3.0 kgf-m, 14.8-22.1 ft-lbf}
[L3 WITH TC]
Engine Front Cover
Installation Position 1-18 8.0-11.5 N-m {82-117 kgf-cm, 71-101 in-lbf}
Installation Position 19-22 40-55 N-m {4.1-5.6 kgf-m 30-40 ft-lbf}
Tightening torque
1. 96-104 N-m (9.8-10.6 kgf-m, 70.9-76.7 ft-lbf)
2. 87°-93°
[LF, L3]
Engine Front Cover
Bolt No. 1-18 8.0-11.5 N-m {81.6-117.2 kgf-cm, 70.9-101.7 in-lbf}
Bolt No. 19-22 40-55 N-m {4.1-5.6 kgf-m 29.7-40.5 ft-lbf}
Bolt No. 23 20-30 N-m {2.1-3.0 kgf-m, 14.8-22.1 ft-lbf}
[L3 WITH TC]
Engine Front Cover
Installation Position 1-18 8.0-11.5 N-m {82-117 kgf-cm, 71-101 in-lbf}
Installation Position 19-22 40-55 N-m {4.1-5.6 kgf-m 30-40 ft-lbf}
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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