Ford Thunderbird 1958 User Manual

PART
1-ENGINE
1-7
TO
RADIATOR
SUPPLY TANK
1515-A
1770-A
FIG.
10
Crankcase
Ventilation
System
FIG.
11
Cooling
System
oil
pan through
drain
back
holes
lo
cated at
each
end of the cylinder
head and
in the tappet
chamber floor.
The
timing
chain
and
sprockets
are
splash lubricated
by
a jiggle
pin
in the
main
gallery
front
plug.
CRANKCASE
VENTILATION
A
crankcase
ventilation tube is
lo
cated at the
rear
of
the engine.
The
forward
motion
of
the
car
causes a
partial
vacuum
to
be
formed
at
the
tube.
This
vacuum
action causes air
to be
drawn
through the
engine from
the oil
filler
cap
located at the
front
of
the intake
manifold
(Fig.
10).
The
filler
cap
contains
a
filtering
element
which
filters the
incoming
air.
From the filler
cap,
the
air
flows
into
the
front section
of
the
valve
push rod
chamber where there
are
few
contaminating
vapors.
Here,
the
incoming
air
has
a
chance to warm
up
before
contacting
contaminating
vapors
originating
in the crankcase.
Warm
ventilating
air
minimizes the
formation
of
crankcase
sludge.
The
ventilating
air
is
directed
by
a
baffle,
located
on the underside
of
the
intake
manifold,
upward
into
the
front of both
valve rocker
arm cham
bers.
The baffle also directs
air
to the
front
of
the lower
crankcase and into
the
timing
chain
chamber.
Air
from the valve
rocker arm
chamber and
from the crankcase
flows
into
the rear
of the
valve
push
rod
chamber.
All
air is then directed
out the
crankcase ventilation
tube.
COOLING
SYSTEM
The
coolant
is
drawn from the
lower tank of the radiator
by
the
water
pump
which delivers
the
cool
ant
to the
cylinder
block (Fig. 11).
The coolant
travels
through
cored
passages
to cool the
entire
length
of
each
cylinder
wall.
Upon
reaching
the rear
of
the
cylinder
block,
the
coolant
is
directed
upward
into the
cylinder
heads
where it cools the
combustion
chambers, valves,
and
valve
seats on
its
return to the
front
of
the
engine.
The
coolant
from
each cylinder
head
flows
through the
water pas
sages
in the
intake
manifold and past
the
water
thermostat,
if
it
is
open,
into the
radiator
supply
tank.
If
the
thermostat is
closed,
a
small portion
of the
coolant
is
returned to the
water
pump
for recirculation.
The
entire system is pressurized to
13-15
psi
by
a
pressure-type radiator
cap.
GENERAL
ENGINE
TROUBLE
SHOOTING
Poor
engine
performance
can
be
caused
by
the need
of a general
en
gine
tune-up,
by
gradual wear
of
engine
parts,
or
by
a sudden
parts
failure. A
good trouble
diagnosis
will
indicate the
need of a complete
en
gine
tune-up,
individual
adjustments,
part(s)
replacement or
overhaul,
or
the
need
of a complete engine
over
haul.
Engine
performance
complaints
usually
fall
under one
of
the
follow
ing
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
ac
celeration;
engine does not
develop
full
power,
or
has
poor high
speed
performance;
excessive
fuel
con
sumption;
engine
overheats;
or
the
engine fails to reach
normal opera
tion
temperature.
Table 1 is
a general
trouble shoot
ing
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
cor
rections
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
sys
tems
that could
be
at
fault
are
listed
in
the order of
their
probable
occur
rence;
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
re
moved
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
compres
sion
while the
spark
plugs are
out.

Ford Thunderbird 1958 Specifications

General

Brand	Ford
Model	Thunderbird 1958
Category	Automobile
Language	English