Discovery 2. Manual — part 446

ENGINE - V8

OVERHAUL 12-2-77

Reassembly

1. Clean camshaft bearings in block.
2. Clean camshaft.
3. Wipe camshaft bearing faces and lobes.
4. Clean thrust plate and mating face.
5. Lubricate camshaft bearings with clean engine

oil.

6. Fit camshaft, take care not to damage camshaft

bearings.

7. Lubricate thrust plate and mating face with

clean engine oil.

8. Position thrust plate, fit and tighten bolts to 22

Nm (17 lbf.ft).

9. Fit timing chain and gears.

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ENGINE - V8, OVERHAUL, Timing

chain and gears.

10. Immerse tappets in engine oil. Before fitting,

pump the inner sleeve of tappet several times
using a push rod to prime the tappets.

11. Clean tappet bores.
12. Lubricate tappets and tappet bores with clean

engine oil.

13. Fit tappets.
14. Clean push rods.
15. Lubricate tappet end of push rods with clean

engine oil.

16. Fit push rods.
17. Clean bases of rocker pillars and mating faces.
18. Clean contact surfaces on rockers and valves.
19. Lubricate contact surfaces on rockers and

valves with clean engine oil.

20. Fit rocker shafts and engage push rods. Ensure

rockers shafts are fitted to the correct cylinder
head.

21. Fit and progressively tighten rocker shaft bolts

to 40 Nm (30 lbf.ft).

22. Fit inlet manifold gasket.

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ENGINE - V8, OVERHAUL, Gasket -

inlet manifold.

ENGINE - V8

12-2-78 OVERHAUL

EMISSION CONTROL - TD5

DESCRIPTION AND OPERATION

17-1-1

EMISSION CONTROL - Td5

DESCRIPTION AND OPERATION

EGR system components - type 1

1 EGR valve modulator
2 Vacuum hose (brown)
3 'T'-piece
4 Vacuum hose to brake-servo
5 Non-return valve
6 Brake-servo
7 Inlet manifold
8 Exhaust manifold
9 EGR pipe

10 Vacuum pump/alternator assembly
11 Air intake hose from intercooler
12 EGR valve assembly
13 Vacuum hose to vacuum pump
14 Vacuum hose to EGR valve suction port (blue)
15 To atmosphere
16 In-line filter
17 Vent hose – modulator to in-line filter (green)

EMISSION CONTROL - TD5

17-1-2

DESCRIPTION AND OPERATION

EGR system components - type 2

Inset A shows the Pre EU3 condition for the EGR pipe and inset B shows the Pre EU3 condition filter and venting.