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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSJAGUAR2006XJ (X350) V8-4.2L SCREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER HEAD ASSEMBLYSYSTEM SPECIFICATIONS
2006 Jaguar XJ (X350) V8-4.2L SC
System Specifications
2006 Jaguar XJ (X350) V8-4.2L SCSECTION System Specifications
Cylinder Head
Tighten bolts 1 to 10 20 Nm
Tighten bolts 1 to 10 35 Nm
Tighten bolts 1 to 10 90°
Tighten bolts 1 to 10 90°
Tighten bolts 11 to 12 25 Nm
Cylinder Head Warp
Maximum permitted cylinder head warp 0.125 mm
Intake Manifold
Tighten 22 Nm
Camshaft Bearing Cap
Tighten 10 Nm
Exhaust Manifold
Tighten 25 Nm
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.