Home > Land Rover Discovery 2 L318 1998-2004 > Engine Components > V8 EFI 4.0 & 4.6 Engine Parts > ENGINE TORQUE SETTINGS

ENGINE TORQUE SETTINGS

4.0 & 4.6 V8 Tightening torques

 
Cylinder head instructions
 

Renew Bolts then Tighten as sequence to 20Nm, then Tighten 90° then Tighten another 90°

Other engine tightening torques

Big end bearings
Renew bolts/nuts
No
Big end bearings
Stage 1
20 Nm
Big end bearings
Stage 2
80°
Sump bolts
23 Nm
Sump drain bolt
43 Nm
Flywheel/driveplate
45 Nm

Driveplate 

  • 6 inner bolts = 85 Nm
  • 4 outer bolts = 45 Nm.
Crankshaft pulley/damper centre bolt
270 Nm
Camshaft sprocket/gear
58 Nm
Camshaft/rocker cover
8 Nm

  • Use new nuts.
Inlet manifold to cylinder head
50 Nm
Exhaust manifold to cylinder head
20 Nm
Exhaust downpipe to manifold
45 Nm
Water pump
28 Nm

  • Apply approved locking fluid to bolts for re-assembly.
Spark plugs
20 Nm
Fuel rail
8 Nm
Crankshaft position sensor/engine speed (RPM) sensor
6 Nm
Camshaft position sensor
8 Nm
Engine coolant temperature sensor
20 Nm

  • Apply approved locking fluid to bolts for re-assembly.
Lambda sensor (Oxygen)
20 Nm
Knock sensor 
16 Nm