Discovery II
Safety first! • Ensure the vehicle is securely chocked on level ground before working underneath. • Be sure to wear safety glasses or eye protection. • Make sure to double check all bolts for proper torque. Fig 1 – A piece of plywood protecting the radiator.
Fig 2 – Upper intake plenum removal.
Fig 4 – Alternator removal.
Fig 5 – Top row of eight exhaust manifold bolts.
Fig 6 – Remove four bolts securing rocker shaft.
Fig 7 – Head bolt removal with 5/8th socket.
Fig 8 – Removal of the cylinder head. Use care to avoid accidental nicks on the aluminum mating surfaces.
Fig 9 – Cylinder block prior to cleaning.
Fig 10 – Exercise care placing cylinder head and head gasket onto engine block.
Fig 11 – Cylinder head seated using locater dowels.
Fig 12 – Installation of new lightly oiled cylinder head bolt.
Fig 13 – Application of clear RTV silicone sealant to cylinder head to engine block corner.
Fig 14 – Rubber end seal placement.
Reassembly con’t. Reinstall the alternator-mounting bracket and tighten the bolts to 40Nm (30-lb.ft.). Reinstall the accessory drive belt tensioner and tighten to 45Nm (33-lb.ft.). Reinstall the valve covers using new valve cover gaskets, and tightening the bolts to 8Nm (6-lb.ft). Remove the plywood placed to protect the radiator. Refill the engine with manufacturer specific engine oil, and properly refill the cooling system using properly concentrated coolant / antifreeze to distilled water ratio of 50:50 (fig 13-17). /// Fig 15 – Installation of the intake gasket.
Fig 16 – Reinstall the lower intake manifold.
Fig 3 – Valve cover removal.
Fig 17 – Jeff White tightens the valve cover bolts.
Rovers magazine
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