Workshop Manuals Factory service & repair Land Rover
01 Discovery Series II - Workshop Manual - 1999MY ON - 6th Edition - NAS02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 INTRODUCTION32 33 GENERAL INFORMATION34 35 GENERAL DATA36 IDENTIFICATION NUMBERS37 38 TORQUE WRENCH SETTINGS39 40 LIFTING AND TOWING41 CAPACITIES, FLUIDS, LUBRICANTS AND SEALANTS42 43 44 MAINTENANCE45 46 ENGINE - V847 48 EMISSION CONTROL - V849 50 ENGINE MANAGEMENT SYSTEM - V851 FUEL DELIVERY SYSTEM - V852 53 COOLING SYSTEM - V854 55 MANIFOLDS AND EXHAUST SYSTEMS - V856 57 58 59 CLUTCH - V860 61 MANUAL GEARBOX - R38062 63 TRANSFER BOX - LT230SE64 65 66 AUTOMATIC GEARBOX - ZF4HP22 - 2467 PROPELLER SHAFTS68 69 REAR AXLE70 71 72 73 74 75 FRONT AXLE76 77 78 79 STEERING80 FRONT SUSPENSION81 82 83 REAR SUSPENSION84 85 86 87 BRAKES88 RESTRAINT SYSTEMS89 90 DOORS91 EXTERIOR FITTINGS92 93 INTERIOR TRIM COMPONENTS94 SCREENS95 96 97 SEATS98 99 SUNROOF100 CHASSIS AND BODY DIMENSIONS101 102 103 104 PANEL REPAIRS105 106 107 108 BODY SEALING MATERIALS109 110 111 112 113 CORROSION PREVENTION AND SEALING114 PAINTING115 HEATING AND VENTILATION116 117 AIR CONDITIONING118 119 WIPERS AND WASHERS120 CHARGING AND STARTING121 122 LIGHTING123 BODY CONTROL UNIT124 125 126 ALARM SYSTEM AND HORN127 128 WINDOWS129 IN CAR ENTERTAINMENT130 HARNESSES131 DRIVING AIDS132 NAVIGATION SYSTEM133 INSTRUMENTS
Land Rover Discovery II46 · ENGINE - V8
46 · Engine

Gasket - cylinder head (page 2 of 2)

Make
Land Rover
Model
Discovery II
Section
OVERHAUL
ENGINE - V8Gasket - cylinder head · page 2 of 2
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ENGINE - V8

12-2-62 OVERHAUL

10. Remove cylinder head gasket. 

CAUTION: Support both ends of cylinder 
head on blocks of wood. 

Inspect

1. Clean mating faces of cylinder block and  head 

using suitable gasket removal spray and  a 
plastic scraper, ensure that bolt holes in  block 
are clean and dry. 

CAUTION: Do not use a metal scraper or 
machined surfaces may be damaged.

2. Check head and block faces for warping  and 

pitting. 

l

Maximum cylinder head warp = 0.05 mm 
(0.002 in).

Note: Cylinder head can be refaced to 0.50 

mm (0.02 in) maximum below head height – 
See cylinder head overhaul.

3. Models with SAI: Using a 5/8 in x 20 TPI ( 

threads per inch) UNF tap having a class 2A 
thread, remove deposits from secondary air 
injection adapter tappings in cylinder head.

CAUTION: Ensure that tap used has 20 TPI.

Reassembly

1. Ensure that cylinder head bolt holes are clean 

and dry.

2. Fit cylinder head gasket with the word   TOP 

uppermost. 

CAUTION: Gaskets must be fitted dry.

3. Carefully fit cylinder head and locate  on 

dowels. 

4. Lightly lubricate new cylinder head  bolt threads 

with clean engine oil. 

5. Noting that bolts 1, 3 and 5 are longer than the 

remainder, fit bolts and tighten in the  sequence 
shown to 20 Nm (15 lbf.ft) then  turn through 90 

°

,  then a further 90 

°

. CAUTION: Do not 

tighten bolts 180

°

 in one operation. 

6. Models with SAI: Fit new air injection adapters 

and using a 9 mm hexagonal drive bit, tighten 
to 33 Nm (24 lbf.ft).

CAUTION: Do not use an air tool to tighten 
adapters.

7. Clean the push rods, Lubricate ends of push 

rods with clean  engine oil, and fit  in their 
removed order. 

8. Clean bases of rocker pillars and mating  faces 

on cylinder head. 

9. Clean contact surfaces on rockers, valves and 

push rods. 

10. Lubricate contact surfaces and rocker  shaft 

with clean engine oil. 

11. Fit rocker shaft assembly and engage  push 

rods. 

12. Fit rocker shaft bolts and progressively  tighten 

to 40 Nm (30 lbf.ft). 

13. Connect ht leads to spark plugs in their correct 

fitted order. 

14. RH cylinder head:  Position alternator 

mounting bracket, fit bolts and tighten to 40 Nm 
(30 lbf.ft).

15. RH cylinder head:  Fit auxiliary drive belt 

tensioner. 

16. Fit inlet manifold gasket.  

 

 + 

 ENGINE - V8, OVERHAUL, Gasket - 

inlet manifold.

Parts & tools for this job For Land Rover Discovery

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