Engine Overhaul Manual v8 4.0 4.6
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
3 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 lbf.ft
Stage 2
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 side bolts - Numbers 11 to 15:
+*
Stage 1 - initial torque
13.5 Nm
. . . . . . . . . . . . . . . . . . . . . . .
10 lbf.ft
Stage 2 - final torque
45 Nm
. . . . . . . . . . . . . . . . . . . . . . .
34 lbf.ft
Main bearing cap side bolts - Numbers 16 to 20:
+*
Stage 1 - initial torque
13.5 Nm
. . . . . . . . . . . . . . . . . . . . . . .
10 lbf.ft
Stage 2 - final torque
45 Nm
. . . . . . . . . . . . . . . . . . . . . . .
34 lbf.ft
Main bearing cap bolts - Nos. 1 to 8: +*
Stage 1 - initial torque
13.5 Nm
. . . . . . . . . . . . . . . . . . . . . . .
10 lbf.ft
Stage 2 - final torque
72 Nm
. . . . . . . . . . . . . . . . . . . . . . .
54 lbf.ft
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
Flywheel bolts
78 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
58 lbf.ft
Drive plate assembly bolts
45 Nm
. . . . . . . . . . . . . . . . . . . . .
33 lbf.ft
Drive plate hub aligner to crankshaft Allen
bolts - Shimmed hub aligner
85 Nm
. . . . . . . . . . . . . . . . . . .
63 lbf.ft
Drive plate hub aligner to crankshaft Allen
bolts - Unshimmed hub aligner
78 Nm
. . . . . . . . . . . . . . . . .
58 lbf.ft
Starter ring gear to crankshaft Allen bolts -
Modified starter ring gear
85 Nm
. . . . . . . . . . . . . . . . . . . . . .
63 lbf.ft
Oil sump drain plug - Early engines fitted with
pressed steel sump
45 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . .
33 lbf.ft
Oil sump drain plug - Later engines fitted with
cast alloy sump
24 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
18 lbf.ft
Oil sump nuts and bolts - Early engines fitted with
pressed steel sump +
23 Nm
. . . . . . . . . . . . . . . . . . . . . . . .
17 lbf.ft
Oil sump bolts - Later engines fitted with cast
alloy sump +
22 Nm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
16 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
