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.
2008 Acura TSX L4-2.4LFACTORY OEM SERVICE PROCEDURE
General Specifications
Cylinder Head
After torquing, tighten all cylinder head bolts in two steps (90°per step). If you are using a new cylinder head bolt, tighten the bolt an extra 90°
Head Bolt
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.
Intake Manifold
Camshaft Bearing/Holder
Main Bearing
Torque 30 Nm (3.0 kgf-m, 22 lbf-ft) +56°
Rod Bearing
Torque 36 Nm (3.7 kgf-m, 27 lbf-ft) +120°
Crankshaft Pulley
Torque 50 Nm (5.0 kgf-m, 37 lbf-ft)
Tighten additional 90°
Oil Pump
Exhaust Manifold
Tighten the bolts/nuts in a crisscross pattern in three steps, beginning with the inner nut.
Water Pump
After torquing, tighten all cylinder head bolts in two steps (90°per step). If you are using a new cylinder head bolt, tighten the bolt an extra 90°
Head Bolt
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.
Intake Manifold
Camshaft Bearing/Holder
Main Bearing
Torque 30 Nm (3.0 kgf-m, 22 lbf-ft) +56°
Rod Bearing
Torque 36 Nm (3.7 kgf-m, 27 lbf-ft) +120°
Crankshaft Pulley
Torque 50 Nm (5.0 kgf-m, 37 lbf-ft)
Tighten additional 90°
Oil Pump
Exhaust Manifold
Tighten the bolts/nuts in a crisscross pattern in three steps, beginning with the inner nut.
Water Pump
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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