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 BLOCK ASSEMBLYSYSTEM SPECIFICATIONS
2009 Nissan-Datsun Sentra L4-2.0L (MR20DE)
System Specifications
2009 Nissan-Datsun Sentra L4-2.0L (MR20DE)SECTION System Specifications
SERVICE DATA AND SPECIFICATIONS (SDS)
CYLINDER HEAD
Valve Dimensions
Valve Spring
Valve Guide
Valve Seat
CYLINDER BLOCK
Available Piston
Piston Ring
Piston Pin
CONNECTING ROD
CRANKSHAFT
MAIN BEARING
Undersize
Bearing Oil Clearance
CONNECTING ROD BEARING
Undersize
Bearing Oil Clearance
Main Bearing Cap
Tighten main bearing cap bolts in two steps.
NOTE: Tighten main bearing cap bolts in numerical order as shown:
Arrow Indicates Engine Front
Crankshaft Pulley
Tighten crankshaft pulley bolt in three steps.
CYLINDER HEAD
Valve Dimensions
Valve Spring
Valve Guide
Valve Seat
CYLINDER BLOCK
Available Piston
Piston Ring
Piston Pin
CONNECTING ROD
CRANKSHAFT
MAIN BEARING
Undersize
Bearing Oil Clearance
CONNECTING ROD BEARING
Undersize
Bearing Oil Clearance
Main Bearing Cap
Tighten main bearing cap bolts in two steps.
NOTE: Tighten main bearing cap bolts in numerical order as shown:
Arrow Indicates Engine Front
Crankshaft Pulley
Tighten crankshaft pulley bolt in three steps.
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.