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-DATSUN2004SENTRA L4-2.5L (QR25DE)REPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINETIMING COMPONENTSSYSTEM SPECIFICATIONS
2004 Nissan-Datsun Sentra L4-2.5L (QR25DE)
System Specifications
2004 Nissan-Datsun Sentra L4-2.5L (QR25DE)SECTION System Specifications
TIMING CHAIN
TIMING CHAIN - 2.5L (QR25DE):
Timing Chain Front Cover Bolt Sequence:
IVT Control Cover Bolt Sequence:
Front cover bolts:..................12 - 13 Nm (1.2 - 1.4 kg-m, 9 - 10 ft. lbs.)
Balancer Unit Bolt Sequence:
1. Tighten to 45.2 - 51.0 Nm (4.6 - 5.2 kg-m, 34 - 37 ft. lbs.).
Turn them another 90° - 95° degrees (Target: 90° degrees).
2. Fully loosen in the reverse order of tightening to 0 Nm (0 kg-m, 0 ft. lbs.).
3. Tighten them to 45.2 - 51.0 Nm (4.6 - 5.2 kg-m, 34 - 37 ft. lbs.).
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.