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Home >> Acura >> 2009 >> TSX L4-2.4L >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Engine >> Cylinder Head Assembly >> System Specifications >> Tightening Torques
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Tightening Torques

Cylinder head





Measure the diameter of each cylinder head bolt at point A and point B
If either diameter is less than 10.6 mm (0.42 in), replace the cylinder head bolt





Tightening torque 39 N-m (4.0 kgf-m, 29 lbf-ft)
Tighten further in two steps 90° per step
If you are using a new cylinder head bolt, tighten the bolt an extra 90 °

Camshaft bearing caps








VTC Actuator Mounting Bolt
12 x 1.25 mm 113 Nm (11.5 kgf-m, 83 lbf-ft)
Exhaust Camshaft Sprocket Mounting Bolt
10 x 1.25 mm 72 N-m (7.3 kgf-m, 53 lbf-ft)

Intake manifold





Tighten the bolts and nuts in a crisscross pattern in three steps, beginning with the inner bolt