engine
Head Gaskets - Both Torque Specs
for 2021 McLaren 720S 4.0L V8 Twin Turbo · RWD
Units
13 fasteners
Seq
Component
Torque
Angle
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Camshaft Cap Bolts★ OEM verified
CriticalTighten in sequence from center outward, multiple passes
7.4 lb-ft · 10 Nm
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Camshaft Sprocket Bolts★ OEM verified
CriticalHold cam with wrench on hex
36.9 lb-ft · 50 Nm
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Crankshaft Pulley Bolt★ OEM verified
CriticalOften TTY - check spec, may require impact
18.4 lb-ft · 25 Nm
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Cylinder Head Bolts
CriticalMulti-step + angle
75 lb-ft · 101 Nm
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Exhaust Manifold Nuts★ OEM verified
Critical25.8 lb-ft · 35 Nm
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Intake Manifold Bolt✓ Verified
Critical8 lb-ft · 11 Nm
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Oil Drain Plug★ OEM verified
CriticalUse new crush washer
17.7 lb-ft · 24 Nm
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Rocker Arm Bolts★ OEM verified
CriticalTighten with cam lobe pointing away
7.4 lb-ft · 10 Nm
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Sensor Mounting Bolts
7 lb-ft · 10 Nm
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Timing Chain Tensioner Bolt★ OEM verified
CriticalInstall with pin/clip to compress
7.4 lb-ft · 10 Nm
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Timing Cover Bolts - 8mm★ OEM verified
CriticalTighten in sequence
7.4 lb-ft · 10 Nm
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Valve Cover Bolts★ OEM verified
Tighten in sequence
7.4 lb-ft · 10 Nm
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VVT Solenoid Bolt★ OEM verified
4.4 lb-ft · 6 Nm
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