Discovery II
ENGINE - V8
REPAIRS 12-2-21
5. Release coolant rail from inlet manifold and
discard 'O' ring.
6. Remove nuts securing alternator cables and
release cables from alternator.
7. Disconnect multiplugs from RH bank of
injectors and release harness from fuel rail.
8. Release ht leads from clips on rocker cover.
9. Noting fitted position of 2 long screws or multi-
hex bolts, remove and discard screws/bolts
securing rocker cover; remove rocker cover.
10. Remove and discard rocker cover gasket.
Refit
1. Clean mating faces of rocker cover and
cylinder head, ensure bolt holes are clean and
dry.
2. Fit a new gasket dry, position rocker cover
ensuring gasket is correctly located.
3. Fit new 'patched' multi-hex rocker cover bolts
ensuring that 2 short bolts are on side of rocker
cover nearest centre of engine.
4. Tighten bolts by diagonal selection to:
l
Stage 1 - 3 Nm (2.5 lbf.ft)
l
Stage 2 - 8 Nm (6 lbf.ft)
5. Ensure that outer rim of gasket is correctly
positioned around periphery of rocker cover.
6. Secure ht leads in rocker cover clips.
7. Secure injector harness to fuel rail and connect
multiplugs to injectors.
8. Position alternator cables, and tighten terminal
B+ nut to 18 Nm (13 lbf.ft) and terminal D+ nut
to 5 Nm (3 lbf.ft).
9. Clean coolant rail 'O' ring recess.
10. Lubricate and fit new 'O' ring to coolant rail,
position coolant rails, fit bolts and tighten to 22
Nm (16 lbf.ft).
11. Models with SAI: Apply a small amount of
engine oil to top of air manifold union nuts and
around air manifold pipes.
12. Models with SAI:Position air manifold and
finger tighten both air manifold union nuts.
CAUTION: Finger tighten union nuts as far
as possible, damage to air manifold pipes or
adapters may result if this is not done.
13. Models with SAI: Tighten both union nuts to
25 Nm (18 lbf.ft).
CAUTION: Ensure that air manifold pipes
are not distorted during tightening
operation.
14. Fit upper inlet manifold.
SYSTEMS - V8, REPAIRS, Gasket - inlet
manifold - upper - Without Secondary Air
Injection.
15. Refill cooling system.