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1-2
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sill
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IBB
ENGINE
Section
Page
1
Description
1-2
2
Engine Trouble Diagnosis
.
.
1-6
3
Engine Tests
and
Adjustments
1-12
4
Engine Removal
and
Installation
1-13
5
In-Chassis
Repair
Operations
1-15
Engine
Supports
1-15
Valve Rocker Arm Shaft
Assembly
1-15
Section
Page
5
In-Chassis Repair
Operations
(Continued)
Intake Manifold
,
1-17
Exhaust Manifold
1-18
Positive Crankcase
Ventilation System
1-19
Cylinder Heads
and
Valves
1-19
Valve Stem Seal
Replacement
1-22
Cylinder Front Cover
and
Timing
Chain
1-23
Camshaft
1-25
Section
Page
5
In-Chassis Repair
Operations
(Continued)
Camshaft Rear
Bearing
Bore
Plug
Replacement.
.
1-26
Hydraulic Valve Lifter
Replacement
1-26
Crankshaft Lower Rear
Oil Seal Replacement
1-27
Main
and
Connecting
Rod
Bearing
Replacement
1-28
Piston
and
Connecting
Rod
Assembly
1-28
Flywheel
1-32
Oil Filter Replacement.
.
.
1-32
Oil Pan
and
Oil
Pump.
.
.
1-32
6
Work Stand Repair
Operations
1-34
Crankshaft
1-34
Camshaft
Bearing
Replacement
1-36
Engine
Disassembly
1-36
Cylinder Block
1-38
Engine Assembly.
1-38
7
Crankcase Ventilation
System Maintenance
1-40
DESCRIPTION
A1240-C
FIG. 1
-Thunderbird
390 Special
V-8 Engine
The Thunderbird 390 Special V-8
engine
(Figs. 1
and
2)
has
a
4.05-inch
bore
and
a
3.78-inch
stroke
and
a
total
piston
displacement
of
390
cubic
inches.
It has
a compression ratio of
9.6:1.
The
patent
plate
symbol
for
the
engine
is
"Z."
MANIFOLDS
An
engine
coolant
heated
spacer
is located
between
the
carburetor
and
the
intake
manifold
(Fig.
3).
The
coolant
flows from
the
front
of
the
engine
through
the
spacer
inlet
hose
and
into
the
carburetor coolant
spacer.
The
coolant circulates
through
the
spacer and
flows into
the
heater
inlet hose
and
into
the
heater.
Ex-
A1241-C
FIG.
2-Sectional
View 390 Special V-8 Engine
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