Pontiac FIREBIRD 1972 Service Manual page 559

V-8 ENGINE 6-47
V-8 ENGINE
CONTENTS OF THIS SECTION
General Description
................................................
6-47
Cylinder Block
............................
r
.......................
6-47
Cylinder Head
......................................................
6-47
....................................
Crankshaft and Bearings 6-49
Camshaft and Bearings
........................................
6-50
Pistons and Connecting Rods
............................
6-50
Valve Train
..........................................................
6-50
Hydraulic Valve Lifters
......................................
6-5 1
Fuel Distribution System
....................................
6-52
Exhaust System
....................................................
6-53
General Information on Engine Service
................
6-53
Periodic Service
........................................................
6-53
Service Operations on Car
......................................
6-54
Engine Insulators-Remove and Replace
............
6-54
Drive Belts-Adjust
........................................
6-55
..............
Engine Assembly-Remove and Replace 6-55
Exhaust Manifold-Remove and Replace
............
6-59
Intake Manifold or Gasket-Remove and
............................................................
Replace 6-61
Push Rod Cover or Gasket-Remove and
Replace
............................................................
6-62
Valve Springs, Shield or Seal-Remove and
............................................................
Replace 6-62
Push Rod or Valve Lifter-Remove and
............................................................
Replace 6-63
Valve Lifter-Recondition
....................................
6-64
Cylinder Head or Gasket-Remove and
Replace
............................................................
6-67
..........
Rocker Arm Studs-Remove and Replace
6-68
Cylinder Head and Valves-Recondition
..............
6-70
..........
Harmonic Balancer-Remove and Replace 6-72
Timing Chain Cover Seal-Remove and
Replace
............................................................
6-74
Timing Chain Cover, Gasket or Fuel Pump
Eccentric-Remove and Replace
......................
6-74
Timing Chain and Sprockets-Remove and
Replace
............................................................
6-75
Camshaft and/or Camshaft Bearings-Remove
and Replace
......................................................
6-76
Oil Pan and/or Oil Pan Gasket-Remove and
Replace
...........................................................
6-79
Oil Pump-Remove and Replace
..........................
6-8 1
Rear Main Bearing Oil Seal-Remove and
Replace
............................................................
6-83
..................
Main Bearings-Remove and Replace 6-84
Connecting Rod Bearings-Remove and
Replace
............................................................
6-86
Connecting Rod and Piston Assembly-
Remove and Replace
......................................
6-87
Cylinder Bores-Inspect
....................................
6-88
Honing or Boring
............................................
6-89
Fit and Replace Piston
....................................
6-90
Fitting Pin in Piston
........................................
6-90
Piston Rings-Remove and Replace
................
6-92
Crankshaft-Remove and Replace
........................
6-92
Engine Block Core Hole Plugs and Oil
Passage Plugs-Inspect and Replace
................
6-94
..........................
Fitted Block Assembly-Replace 6-95
Specifications
.........................................................
6- 101
Special Tools
............................................................
.6- 107
GENERAL DESCRIPTION
The V-8 engine (Fig. 6-75) features completely machined
combustion chambers, overhead valves, ball pivot rocker
arm construction, harmonic balancer, hydraulic lifters,
aluminum pistons, integral valve guides, Closed Crank-
case Ventilation System and an Evaporative Control Sys-
tem which provide the utmost in performance, economy
and emission control.
Engines may be identified first by noting the engine code
on the front of the block, stamped on a machined pad on
the right bank of cylinders (Fig. 6-3) and then referring to
the engine charts (Fig. 6-1).
Detailed descriptions of cooling and lubrication systems
are given in Section 6A. Mechanical details such as valves,
rocker arms, hydraulic valve lifters, etc., are described on
the following pages.
CYLINDER BLOCK
The cylinder block (Figs. 6-76 and 6-77) has two banks of
four cylinders each, cast at 90" to each other. Left bank
cylinders are numbered 1-3-5-7 from front to back and
right bank cylinders are numbered 2-4-6-8.
All main bearing caps are doweled to the cylinder block
to assure accurate alignment and facilitate assembly.
CYLINDER HEAD
'Cylinder heads (Fig. 6-78) have fully machined combus-
tion chambers (Fig. 6-79). In addition, all exhaust valve
seats are induction hardened, making them more resistant
to wear. Valve guides are cast integral with the cylinder
head and valve heads are surrounded by water jackets
(Fig. 6-80).