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Home >> Mazda >> 2010 >> MX-5 Miata L4-2.0L >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Head Assembly >> System Specifications
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System Specifications

Cylinder Head

Tighten the cylinder head bolts in the order shown with the following 5 steps using the SST (49 D032 316).






Tightening Torque
Step 1: 5.0 Nm {51.0 kgf-cm, 44.3 in-lbf}
Step 2: 13-17 Nm {1.4-1.7 kgf-m, 10.0-12.5 ft-lbf}
Step 3: 44-46 Nm {4.5-4.6 kgf-m, 32.5-33.9 ft-lbf}
Step 4: 88°-92°
Step 5: 88°-92°

Head Bolt Reuse

Measure the length of each cylinder head bolt. Replace any that exceed the maximum length.






Cylinder Head Bolt Length L 145.2-145.8 mm {5.72-5.74 in}
Cylinder Head Bolt Maximum 146.5 mm {5.77 in}

Intake Manifold






Dynamic Chamber

Torque 16-20 Nm {1.7-2.0 kgf.m, 12-14 ft.lbf}


Intake Manifold

Torque 15-25 Nm {1.6-2.5 kgf.m, 12-18 ft.lbf}

Camshaft Bearing Cap

Tighten the camshaft cap bolts in the order shown with the following two steps.






Tightening torque
Step 1 5.0-9.0 Nm {51.0-91.7 kgf-cm, 44.3-79.6 in-lbf}
Step 2 14.0-17.0 Nm {1.5-1.7 kgf-m, 10.4-12.5 ft-lbf}

Camshaft Gear/Sprocket (includes variable valve timing actuator)

Tightening torque 69-75 Nm {7.1-7.6 kgf-m, 50.9-55.3 ft-lbf}

Exhaust Manifold