Ford Thunderbird 1957 - General Engine Service; General Engine Trouble Shooting; Troubleshooting

1-4
Part 1
-
ENGINES
Chapter
1
GENERAL ENGINE
SERVICE
Section
Page
1
General
Engine Trouble
Shooting
1-
4
2
Tune-Up
1-
8
3
Manifolds and Exhaust Gas Control Valve
1-10
4
Rocker
Arm
Assembly,
Push
Rods,
and
Cylinder
Heads
1-1 1
5 Valve
Mechanism
1-14
6
Timing
Chain,
and Camshaft
and
Bearings
1-18
7
Crankshaft
and
Main
Bearings
1-19
8
Flywheel
1-23
9
Connecting
Rods
and
Bearings
1-23
10
Pistons,
Pins,
and Rings
1-25
11
Cylinder
Block
1-27
12
Oil Pan
and
Oil
Pump
1-29
13
Exhaust
System
1-30
14
Engine
Dimensions,
and
Clearance
and
Adjustment Specifications
1-30
The service
procedures
contained
in
this
chapter
apply
to
all
engines. The
cleaning, inspection,
repair,
and
overhaul
procedures
of
the
component engine parts
apply
after the parts
have
been removed
from the
engine,
or
in
the
case of a
complete
engine
overhaul,
after
the
engine
has
been
disassembled.
To
completely
disassemble or
assemble
an
engine,
follow
all
the
removal or
installation
procedures
in
the
applicable engine
chapter. To
remove
or
install
an
individual
part,
refer
to
the section
covering
the
part
in
the
applicable
engine chapter.
1.
GENERAL ENGINE TROUBLE
SHOOTING
Poor engine
performance
can be
caused
by
the
need
of a
general
engine
tune-up,
by
gradual
wear
of
engine
parts,
or
by
a
sudden parts
failure.
A good
trouble
diag
nosis
will
indicate the need
of
a
complete
engine
tune-
up,
individual
adjustments,
part(s)
replacement
or over
haul,
or the need
of
a
complete
engine
overhaul.
The five
major steps
in
restoring
good
engine per
formance are:
1.
ESTABLISH
THE
TROUBLE.
Make
sure
that
the
trouble
as
stated
by
the
owner
actually
exists.
Deter
mine,
if
possible,
if
any
work has
been performed
re
cently
which
could
be
the
cause
of
the
present
trouble.
2.
ISOLATE THE
CAUSE IN
THE
PROPER SYS
TEM. Trace the cause
of
the
trouble to the
point
where
it
has
been isolated in one
of the
following
systems:
ignition,
fuel, engine,
cooling,
or
exhaust.
3.
LOCATE THE
CAUSE
IN
THE SYSTEM.
4.
CORRECT
THE
TROUBLE.
5.
ROAD TEST.
Before
deciding
that
the
trouble
has
been
corrected,
road
test
the
car
as a final
check
on
the
work
performed.
Engine
performance
complaints
usually
fall under
one
of
the
following
basic
headings:
engine
will
not
crank;
engine
cranks
normally,
but
will
not
start;
engine
starts,
but
fails
to
keep
running;
engine
runs,
but
misses;
rough
engine
idle;
poor
acceleration;
engine does
not
develop
full
power,
or
has
poor high
speed
performance;
excessive
fuel
consumption;
engine
overheats;
or
the engine fails
to
reach normal
operation
temperature.
Table 1
is
a
general
trouble
shooting
chart which
lists
basic
engine
troubles
with
procedures
and
checks
to be
performed
to
help
isolate
the
cause
of
the
trouble
in
a particular
system.
The
reference after
each
check
refers to
that part
of
the
manual which
covers,
in
detail,
checking
procedures as well as
corrections to
be
made
in
the
various systems.
When a particular trouble can
not be
traced
to
a definite
system
by
a simple
check,
the
possible
systems that could
be at fault are
listed
in
the order of
their probable
occurrence;
therefore,
in
most
cases,
the
checks should
be
made in
the
order
listed. Some
consideration,
however,
should
be
given
to logical
order. For
example,
if the
spark
plugs are
removed for
testing
and
they
are
not
the
cause of
the
trouble,
and
several checks
later calls
for
a
compression
test,
to save
time,
check the
compression
while
the
spark
plugs
are
out.
A
separate
trouble
shooting
chart
is
included in
the