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.
2010 Mazda 5 L4-2.3LFACTORY OEM SERVICE PROCEDURE
Timing Component Alignment Marks: Service and Repair
Crankshaft Pulley Lock Bolt Removal Note
1. Remove the cylinder block lower blind plug.
2. Install the SST.
3. Turn the crankshaft clockwise the crankshaft is in the No.1 cylinder TDC position (until the balance weight is attached to the SST).
4. Hold the crankshaft pulley using the SSTs.
Crankshaft Pulley Lock Bolt Installation Note
1. Install the SST to the camshaft as shown in the figure.
2. Verify that No.1 cylinder is at TDC of the compression stroke. (Position counterweight contacts SST.)
3. To position the crankshaft pulley, temporarily tighten it and, using a suitable bolt (M6 X 1.0), fix the crankshaft pulley to the engine front cover.
4. Hold the crankshaft pulley using the SST.
5. Tighten the crankshaft pulley lock bolt in the order shown with the following two steps using the SST (49 D032 316).
Tightening torque
- 96-104 Nm {9.8-10.6 kgf-m, 70.9-76.7 ft-lbf}
- 87°-93°
6. Remove the bolt (M6 X 1.0) installed to the crankshaft pulley.
7. Remove the SST from the camshaft.
8. Remove the SST installed in the cylinder block lower blind plug hole.
9. Rotate the crankshaft clockwise two turns and inspect the valve timing.
- If not aligned, loosen the crankshaft pulley lock bolt and repeat from Step 1.
10. Install the cylinder block lower blind plug.
Tightening torque
- 18-22 Nm {1.9-2.2 kgf-m, 13.3-16.2 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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
