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 MANUALSJAGUAR2000XJR (X308) V8-4.0L SC (AJ27)REPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINESYSTEM SPECIFICATIONSENGINE TORQUES
2000 Jaguar XJR (X308) V8-4.0L SC (AJ27)
Engine Torques
2000 Jaguar XJR (X308) V8-4.0L SC (AJ27)SECTION Engine Torques
Specifications part 1
Specifications part 2
Tighten the cylinder head bolts in stages, in the sequence shown, using the following procedure:
Cylinder Head Bank 1:
Stage 1 - tighten all M10 bolts in sequence to 20 Nm
Stage 2 - tighten all M10 bolts in sequence to 35 Nm
Stage 3 - tighten all M10 bolts in sequence by 90°
Stage 4 - tighten all M10 bolts in sequence by 90°
Stage 5 - tighten all M8 bolts at the front of the cylinder head to 23-27 Nm
Cylinder Head Bank 2:
Stage 1 - tighten all M10 bolts in sequence to 20 Nm
Stage 2 - tighten all M10 bolts in sequence to 35 Nm
Stage 3 - tighten all M10 bolts in sequence by 90°
Stage 4 - tighten all M10 bolts in sequence by 90°
Stage 5 - tighten all M8 bolts at the front of the cylinder head to 23-27 Nm
RENDER: 1.0x
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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.