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 MANUALSTOYOTA2010MATRIX FWD L4-2.4L (2AZ-FE)REPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER HEAD ASSEMBLY
2010 Toyota Matrix FWD L4-2.4L (2AZ-FE)
Cylinder Head Assembly
2010 Toyota Matrix FWD L4-2.4L (2AZ-FE)SECTION Cylinder Head Assembly
CYLINDER HEAD SUB-ASSEMBLY
Install the cylinder head bolts.
The cylinder head bolts are tightened in 2 successive steps.
Using several steps, uniformly install and tighten the 10 cylinder head set bolts and plate washers with a 10 mm bi-hexagon wrench in the order shown in the illustration.
Torque 70 Nm (714 kgf-cm, 52 ft-lbf)
Mark the front of the cylinder head bolts with paint.
Further tighten the cylinder head bolts 90° as shown in the illustration.
Check that the paint mark is now at a 90° angle to the front.
SURFACE VARIATION
CAMSHAFT
Using several steps, uniformly tighten the 10 bearing cap bolts in the sequence shown in the illustration.
No. 1 bearing cap - Torque 30 Nm (301 kgf-cm, 22 ft-lbf)
No. 3 bearing cap - Torque 9.0 Nm (92 kgf-cm, 80 in-lbf)
NO. 2 CAMSHAFT
Install the bearing caps onto the cylinder head.
Using several steps, uniformly tighten the 10 bearing cap bolts in the sequence shown in the illustration.
No. 2 bearing cap - Torque 30 Nm (301 kgf-cm, 22 ft-lbf)
No. 3 bearing cap - Torque 9.0 Nm (92 kgf-cm, 80 in-lbf)
INTAKE MANIFOLD TORQUE & SEQUENCE Specifications
EXHAUST MANIFOLD TORQUE & SEQUENCE Specifications
CAMSHAFT GEAR/SPROCKET TORQUE Specifications
Install the cylinder head bolts.
The cylinder head bolts are tightened in 2 successive steps.
Using several steps, uniformly install and tighten the 10 cylinder head set bolts and plate washers with a 10 mm bi-hexagon wrench in the order shown in the illustration.
Torque 70 Nm (714 kgf-cm, 52 ft-lbf)
Mark the front of the cylinder head bolts with paint.
Further tighten the cylinder head bolts 90° as shown in the illustration.
Check that the paint mark is now at a 90° angle to the front.
SURFACE VARIATION
CAMSHAFT
Using several steps, uniformly tighten the 10 bearing cap bolts in the sequence shown in the illustration.
No. 1 bearing cap - Torque 30 Nm (301 kgf-cm, 22 ft-lbf)
No. 3 bearing cap - Torque 9.0 Nm (92 kgf-cm, 80 in-lbf)
NO. 2 CAMSHAFT
Install the bearing caps onto the cylinder head.
Using several steps, uniformly tighten the 10 bearing cap bolts in the sequence shown in the illustration.
No. 2 bearing cap - Torque 30 Nm (301 kgf-cm, 22 ft-lbf)
No. 3 bearing cap - Torque 9.0 Nm (92 kgf-cm, 80 in-lbf)
INTAKE MANIFOLD TORQUE & SEQUENCE Specifications
EXHAUST MANIFOLD TORQUE & SEQUENCE Specifications
CAMSHAFT GEAR/SPROCKET TORQUE Specifications
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.