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 MANUALSINFINITI2002Q45 V8-4.5L (VK45DE)REPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINEOIL PUMP, ENGINESYSTEM SPECIFICATIONSSERVICE SPECIFICATIONS
2002 Infiniti Q45 V8-4.5L (VK45DE)
Service Specifications
2002 Infiniti Q45 V8-4.5L (VK45DE)SECTION Service Specifications
OIL PUMP:
Clearance of Oil Pump Parts
Clearance between outer rotor and oil pump body (position 1)
Standard:..............0.114 - 0.200 mm (0.0045 - 0.0079 inch)
Tip clearance between inner rotor and outer rotor (position 2)
Standard:..............Below 0.180 mm (0.0071 inch)
Side clearance between inner rotor and oil pump body (position 3)
Standard:............0.030 - 0.070 mm (0.0012 - 0.0028 inch)
Side clearance between outer rotor and oil pump body (position 4)
Standard:............0.030 - 0.090 mm (0.0012 - 0.0035 inch)
(Clearance) = (Inner diameter of oil pump body) - (Outer diameter of inner rotor)
Standard:.............0.045 - 0.091 mm (0.0018 - 0.0036 inch)
Regulator Valve Clearance
(Clearance) = D1 (Valve hole diameter) - D2 (Outer diameter of valve)
Standard:.............0.040 - 0.097 mm (0.0016 - 0.0038 inch)
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.