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 MANUALSNISSAN-DATSUN2009SENTRA L4-2.0L (MR20DE)REPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER HEAD ASSEMBLYSYSTEM SPECIFICATIONS
2009 Nissan-Datsun Sentra L4-2.0L (MR20DE)
System Specifications
2009 Nissan-Datsun Sentra L4-2.0L (MR20DE)SECTION System Specifications
CYLINDER HEAD
Valve Dimensions
Valve Spring
Valve Guide
Valve Seat
Cylinder Head
Install cylinder head, follow the steps below to tighten cylinder head bolts in numerical order as shown.
Arrow Indicates Engine Front
Intake Manifold
Except For California
Torque: 19.6 N.m (2.0 Kg-m, 14 ft-lb)
Tighten bolts in numerical order as shown.
Arrow Indicates Engine front
For California
Torque: 19.6 N.m (2.0 Kg-m, 14 ft-lb)
Loosen bolts in reverse order as shown.
Arrow Indicates Engine Front
Camshaft Bearing Cap
Arrow Indicates Engine Front.
Tighten all bolts in numerical order in three steps.
Camshaft Gear/Sprocket
Camshaft sprocket bolt (INT) : 35.0 N.m (3.6 kg-m, 26 ft-lb)
Camshaft sprocket bolt (EXH) : 88.2 N.m (9.0 kg-m, 65 ft-lb)
Exhaust Manifold
Except For California
Torque: 33.4 N.m (3.4 Kg-m, 25 ft-lb)
Tighten exhaust manifold nuts to specification in two stages in the numerical order as shown.
Arrow Indicates Engine Front
For California
Torque: 33.4 N.m (3.4 Kg-m, 25 ft-lb)
Tighten exhaust manifold nuts to specification in two stages in the numerical order as shown.
Arrow Indicates Engine Front
Valve Dimensions
Valve Spring
Valve Guide
Valve Seat
Cylinder Head
Install cylinder head, follow the steps below to tighten cylinder head bolts in numerical order as shown.
Arrow Indicates Engine Front
Intake Manifold
Except For California
Torque: 19.6 N.m (2.0 Kg-m, 14 ft-lb)
Tighten bolts in numerical order as shown.
Arrow Indicates Engine front
For California
Torque: 19.6 N.m (2.0 Kg-m, 14 ft-lb)
Loosen bolts in reverse order as shown.
Arrow Indicates Engine Front
Camshaft Bearing Cap
Arrow Indicates Engine Front.
Tighten all bolts in numerical order in three steps.
Camshaft Gear/Sprocket
Camshaft sprocket bolt (INT) : 35.0 N.m (3.6 kg-m, 26 ft-lb)
Camshaft sprocket bolt (EXH) : 88.2 N.m (9.0 kg-m, 65 ft-lb)
Exhaust Manifold
Except For California
Torque: 33.4 N.m (3.4 Kg-m, 25 ft-lb)
Tighten exhaust manifold nuts to specification in two stages in the numerical order as shown.
Arrow Indicates Engine Front
For California
Torque: 33.4 N.m (3.4 Kg-m, 25 ft-lb)
Tighten exhaust manifold nuts to specification in two stages in the numerical order as shown.
Arrow Indicates Engine Front
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.