Land Rover V8 engine 4.0, 4.6 litre. Manual — part 1
INFORMATION
DATA, TORQUE & TOOLS
1
DATA
Firing order
1, 8, 4, 3, 6, 5, 7, 2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cylinders 1, 3, 5, 7 - LH side of engine
Cylinders 2, 4, 6, 8 - RH side of engine
Cylinder heads
Maximum warp
0.05 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.002 in
Reface limit
0.50 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.02 in
Valve springs
Free length
48.30 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.90 in
Fitted length
40.40 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.60 in
Load - valve open
736
±
10 N
. . . . . . . . . . . . . . . . . . . . . . . . . . .
165
±
2 lbf
Load - valve closed
339
±
10 N
. . . . . . . . . . . . . . . . . . . . . . . . . .
76
±
2 lbf
Valves
Valve stem diameter:
Inlet
8.664 to 8.679 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.341 to 0.342 in
Exhaust
8.651 to 8.666 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.340 to 0.341 in
Valve head diameter:
Inlet
39.75 to 40.00 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.5 to 1.6 in
Exhaust
34.226 to 34.480 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.3 to 1.4 in
Valve installed height - maximum
47.63 mm
. . . . . . . . . . . . . . .
1.9 in
Valve stem to guide clearance:
Inlet
0.025 to 0.066 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.001 to 0.002 in
Exhaust
0.038 to 0.078 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.0015 to 0.003 in
Valve guides
Valve guide installed height
15.0 mm
. . . . . . . . . . . . . . . . . . . .
0.590 in
Inside diameter after reaming
8.7 mm
. . . . . . . . . . . . . . . . . .
0.34 in
Valve seats
Valve seat angle
46
°
to 46
°
25’
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valve seat width:
Inlet
36.83 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.45 in
Exhaust
31.50 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.24 in
Valve seating width:
Inlet
0.89 to 1.4 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.035 to 0.055 in
Exhaust
1.32 to 1.83 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.052 to 0.072 in
Valve seating face angle
45
°
. . . . . . . . . . . . . . . . . . . . . .
Oil pump
Inner to outer rotor clearance - maximum
0.25 mm
. . . . . . . . .
0.01 in
Rotors to cover plate clearance - maximum
0.1 mm
. . . . . . .
0.004 in
Drive gear wear step depth - maximum
0.15 mm
. . . . . . . . . . .
0.006 in
Oil pressure relief valve
Spring free length
60.0 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . .
2.4 in
Camshaft
End-float
0.05 to 0.35 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.002 to 0.014 in
Maximum run-out
0.05 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.002 in
INFORMATION
2
DATA, TORQUE & TOOLS
Piston rings
Ring to groove clearance:
1st compression
0.05 to 0.10 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . .
0.002 to 0.004 in
2nd compression
0.05 to 0.10 mm
. . . . . . . . . . . . . . . . . . . . . . . . . .
0.002 to 0.004 in
Ring fitted gap:
1st compression
0.3 to 0.5 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . .
0.01 to 0.02 in
2nd compression
0.40 to 0.65 mm
. . . . . . . . . . . . . . . . . . . . . . . . . .
0.016 to 0.03 in
Oil control rails
0.38 to 1.40 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.014 to 0.05 in
Oil control ring width
3.00 mm
. . . . . . . . . . . . . . . . . . . . . . . . .
0.12 in - maximum
Pistons
Piston diameter:
Production - Grade A
93.970 to 93.985 mm
. . . . . . . . . . . . . . . . . . . . . . . .
3.700 to 3.7002 in
Production - Grade B*
93.986 to 94.0 mm
. . . . . . . . . . . . . . . . . . . . . . .
3.7003 to 3.701 in
Clearance in bore
0.02 to 0.045 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . .
0.001 to 0.002 in
Gudgeon pins
Length
60.00 to 60.50 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.35 to 2.4 in
Diameter
23.995 to 24.000 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.94 to 0.95 in
Clearance in piston
0.006 to 0.015 mm
. . . . . . . . . . . . . . . . . . . . . . . . . .
0.0002 to 0.0006 in
Connecting rods
Length between centres:
4.0 litre
155.12 to 155.22 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.10 to 6.11 in
4.6 litre
149.68 to 149.78 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.89 to 5.91 in
Cylinder bore
Cylinder bore:
Grade A piston fitted
94.00 to 94.015 mm
. . . . . . . . . . . . . . . . . . . . . . . .
3.700 to 3.701 in
Grade B piston fitted
94.016 to 94.030 mm
. . . . . . . . . . . . . . . . . . . . . . . .
3.7014 to 3.702 in
Cylinder bore maximum ovality
0.013 mm
. . . . . . . . . . . . . . . . .
0.0005 in
Crankshaft
Main journal diameter
63.487 to 63.500 mm
. . . . . . . . . . . . . . . . . . . . . . . .
2.499 to 2.52 in
Minimum regrind diameter
62.979 to 62.992 mm
. . . . . . . . . . . . . . . . . . .
2.509 to 2.510 in
Maximum out of round
0.040 mm
. . . . . . . . . . . . . . . . . . . . . .
0.002 in
Big-end journal diameter
55.500 to 55.513 mm
. . . . . . . . . . . . . . . . . . . . . .
2.20 to 2.22 in
Minimum regrind diameter
54.992 to 55.005 mm
. . . . . . . . . . . . . . . . . . .
2.16 to 2.165 in
Maximum out of round
0.040 mm
. . . . . . . . . . . . . . . . . . . . . .
0.002 in
End-float
0.10 to 0.20 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.004 to 0.008 in
Maximum run-out
0.08 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.003 in
Main bearings
Main bearing diametrical clearance
0.010 to 0.048 mm
. . . . . . . . . . . . . .
0.0004 to 0.002 in
Oversizes
0.254, 0.508 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.01, 0.02 in
INFORMATION
DATA, TORQUE & TOOLS
3
Big-end bearings
Big-end bearing diametrical clearance
0.015 to 0.055 mm
. . . . . . . . . . .
0.0006 to 0.0021 in
Oversizes
0.254, 0.508 mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.01, 0.02 in
End-float on journal
0.15 to 0.36 mm
. . . . . . . . . . . . . . . . . . . . . . . . . .
0.006 to 0.01 in
Flywheel
Flywheel minimum thickness
40.45 mm
. . . . . . . . . . . . . . . . . . .
1.6 in
Drive plate
Drive plate setting height:
Up to engine no. 42D00593A - 4.0 litre
21.25 to 21.37 mm
. . . . . . . . .
0.83 to 0.84 in
Up to engine no. 46D00450A - 4.6 litre
7.69 to 7.81 mm
. . . . . . . . .
0.30 to 0.31 in
* Grade B piston supplied as service replacement
INFORMATION
TORQUE WRENCH SETTINGS
1
ENGINE
Crankshaft pulley bolt
270 Nm
. . . . . . . . . . . . . . . . . . . . . . . .
200 lbf.ft
Camshaft gear bolt
50 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . .
37 lbf.ft
Camshaft thrust plate bolts
25 Nm
. . . . . . . . . . . . . . . . . . . .
18 lbf.ft
Rocker cover bolts: +
Stage 1
4 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 lbf.ft
Stage 2
8 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 lbf.ft
Stage 3 - re-torque to:
8 Nm
. . . . . . . . . . . . . . . . . . . . . . .
6 lbf.ft
Rocker shaft to cylinder head bolts
38 Nm
. . . . . . . . . . . . . .
28 lbf.ft
Cylinder head bolts: +*
Stage 1
20 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15 lbf.ft
Stage 2
Then 90 degrees
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stage 3
Further 90 degrees
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lifting eye to cylinder head bolts
40 Nm
. . . . . . . . . . . . . . . .
30 lbf.ft
Connecting rod bolts:
Stage 1
20 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15 lbf.ft
Stage 2
Further 80 degrees
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main bearing cap bolts - Nos. 1 to 8: +
Stage 1 - initial torque
13.5 Nm
. . . . . . . . . . . . . . . . . . . . . . .
10 lbf.ft
Stage 2 - final torque
72 Nm
. . . . . . . . . . . . . . . . . . . . . . .
53 lbf.ft
Rear main bearing cap bolts - Nos. 9 and 10: +
Stage 1 - initial torque
13.5 Nm
. . . . . . . . . . . . . . . . . . . . . . .
10 lbf.ft
Stage 2 - final torque
92 Nm
. . . . . . . . . . . . . . . . . . . . . . .
68 lbf.ft
Main bearing cap side bolts - Nos. 11 to 20: +
Stage 1 - initial torque
13.5 Nm
. . . . . . . . . . . . . . . . . . . . . . .
10 lbf.ft
Stage 2 - final torque
45 Nm
. . . . . . . . . . . . . . . . . . . . . . .
33 lbf.ft
Flywheel bolts
80 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
59 lbf.ft
Drive plate assembly bolts
45 Nm
. . . . . . . . . . . . . . . . . . . . .
33 lbf.ft
Drive plate hub aligner to crankshaft socket head
cap screws
85 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
63 lbf.ft
Oil sump drain plug
45 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . .
33 lbf.ft
Oil sump nuts and bolts +
23 Nm
. . . . . . . . . . . . . . . . . . . . .
17 lbf.ft
Oil pump cover plate screws **
4 Nm
. . . . . . . . . . . . . . . . .
3 lbf.ft
Oil pump cover plate bolt **
8 Nm
. . . . . . . . . . . . . . . . . . . .
6 lbf.ft
Spark plugs
20 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15 lbf.ft
Timing cover/coolant pump to cylinder block bolts
+
22 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16 lbf.ft
Oil pick-up pipe to oil pump bolts
8 Nm
. . . . . . . . . . . . . . . .
6 lbf.ft
Oil pick-up pipe nut
24 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . .
18 lbf.ft
Knock sensors to cylinder block
16 Nm
. . . . . . . . . . . . . . . .
12 lbf.ft
Camshaft sensor to timing cover bolt
8 Nm
. . . . . . . . . . . .
6 lbf.ft
Crankshaft position sensor bolts
6 Nm
. . . . . . . . . . . . . . . .
4 lbf.ft
Oil cooler connections
15 Nm
. . . . . . . . . . . . . . . . . . . . . . . .
11 lbf.ft
+ Tighten in sequence
* Lightly oil threads prior to assembly.
** Coat threads with Loctite 222 prior to
assembly.
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