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 MANUALSMAZDA2009CX-9 FWD V6-3.7LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINETIMING COMPONENTSSYSTEM SPECIFICATIONSCRANKSHAFT PULLEY
2009 Mazda CX-9 FWD V6-3.7L
Crankshaft Pulley
2009 Mazda CX-9 FWD V6-3.7LSECTION Crankshaft Pulley
Crankshaft Pulley Lock Bolt Installation Note
1. Rotate the crankshaft clockwise, and set a wrench to the drive plate bolt at the position shown in the figure to lock the crankshaft rotation.
2. Tighten the new crankshaft pulley lock bolt in 4 steps.
a. Tighten to 140 Nm {14 kgf-m, 103 ft-lbf}.
b. Loosen 360 ° (one full turn) in reverse order.
c. Tighten to 47-53 Nm {4.8-5.4 kgf-m, 35-39 ft-lbf}.
d. Tighten 85 °-95 °.
3. Verify the tightening torque for the drive plate bolt to which the wrench has been set. Service and Repair
4. Install the cover as shown in the figure.
1. Rotate the crankshaft clockwise, and set a wrench to the drive plate bolt at the position shown in the figure to lock the crankshaft rotation.
2. Tighten the new crankshaft pulley lock bolt in 4 steps.
a. Tighten to 140 Nm {14 kgf-m, 103 ft-lbf}.
b. Loosen 360 ° (one full turn) in reverse order.
c. Tighten to 47-53 Nm {4.8-5.4 kgf-m, 35-39 ft-lbf}.
d. Tighten 85 °-95 °.
3. Verify the tightening torque for the drive plate bolt to which the wrench has been set. Service and Repair
4. Install the cover as shown in the figure.
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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.