GMC 1989 Light Duty Truck Repair Manual page 488

6A4-34 4.8 LITER L6
Item
Flywheel Bolts
Flywheel Housing Bolts
Main Bearing Cap Bolts
Camshaft Thrust Plate Screws
Front Cover Bolts
Torsional Damper Bolt
Connecting Rod Cap Nuts
Oil Pump Bolts
Oil Pump Bracket Nut (to Main Bearing Cap Bolt)
Oil Pump Cover Bolts
Oil Pan Bolts (to front cover)
(to block p/4-20])
(to block [5/i 6-18])
Cylinder Head Bolts (left-front bolt)
(all others)
Rocker Arm Cover Bolts
Pushrod Cover Bolts
Water Pump Bolts
Thermostat Housing to Block Bolts
Water Outlet to Thermostat Housing Bolts
Intake Manifold to Exhaust Manifold Bolts and Nuts
Manifold to Cylinder Head Bolts and Nuts
Spark Plug
SPECIFICATIONS (CONT.)
TORQUE SPECIFICATIONS
N-m
Ft. Lbs. In. Lbs.
150 110
40 30
90
65
9.0 —
9.0 —
70 50
60 44
13.0 —
34
25
7.9
—
—
5.1
9.0 —
18.6 —
115 85
130 95
4.3 —
9.0 —
20 15
38 28
28
20
60 44
52 38
20
15
—
—
—
80
80
—
—
115
—
70
45
80
165
—
—
38
80
—
—
—
—
—
—