Chris-Craft 283 V-8 User manual

0 P
E
ADD
S
0
AN UAL
MODEL 2
t
V
ENGINE
CHRIS CRAFT CORPORATION

TO
ORDER PARTS
ENGINE
MODEL and
ENGINE SERIAL
NUMBER must be
furnished when
replacement
parts
are
required
The model
designation
T
and
serial
number
will be found
stamped
into
a
plate
fastened
on
top
of the
exhaust manifold
ILLUSTRATION
OF ENGINE PLATE
M ZQ G3
a
C t
Ep
G
B CA
C
WHEN ORDERING
PARTS
FIRING ORDER
USE ONLY HIGH
GRADE
SPECIFY MODEL
AND
MODEL
HEAVY DUTY
MARINE
ENGINE
NUMBER
ENGINE OIL SAE
30
CHRIS CRAFT CORPORATION
POMPANO
BEACH FLORIDA USA
Order
parts
from
your
nearest
Chris Craft dealer
or
direct
from
Chris Craft Cor
poration Service Parts
Department
Algonac
Michigan
being
sure
to
furnish
num
bers
mentioned
above
For the best
performance
from
your
engine
INSIST
ON GENUINE
CHRIS CRAFT
PARTS
CHRIS CRAFT C
O R P O R A T
I O
N
Pompano
Beach
Florida USA

WARRANTY
Chris Craft
boats
and
Chris Craft parts manufactured
by
company
are
warranted to be free
from
defects
in
material
or
workmanship
under
normal
use and service and the
com
pany
will
replace
or
repair any part
thereof
which shall dis
close
defects
within SIX MONTHS
after
date
of
delivery of
such boat or
part
to the
original
purchaser and which exam
ination
by Company
shall determine
to be
defective
providing
that
Dealer shall
make
claim
thereon and
return said
part
or
parts
to
Company transportation
prepaid
within 30
days
after
defect
is
discovered The
Company
does
not authorize
Dealer
to assume
for
Company any
liability
in
connection with
this
warranty Paints varnisbes and
chromium
plate
finishes
are
believed
by
the
Company
to
be
the best
obtainable
bowever
cannot
be
guaranteed
because
of
the
varying effects
which
different
climates
and
use
conditions
have on
the same
This
Warranty
shall
not
apply
to
any
Chris Craft
boat
or
part manufactured
by Company
which
shall have been
al
tered or
repaired
outside
of
the
factories
of
Company
This
Warranty
will
not
apply
to
any engines
engine
ac
cessories
or
trade accessories
not
of
Company s manufacture
which
Company
may
use as these are
generally
warranted
by
their
respective
manufacturers
This
Warranty
does
not cover race
boats or
racing
en
gines
Catalogue
speeds
are estimated
or are attained
over a
certified
course at
Algonac
Michigan
under
favorable
con
ditions and are
not
guaranteed
Chris Craft
Corp

TABLE OF CONTENTS
YOUR
NLW
CHRIS CRAFT MARINE
ENGINE
Identification
Use Genuine
Factory Replacement
Parts
B r eak In
To Start
Engine
LUBRICATION SYSTEM
Oil Pressure
Oil
Recommendation
To
Change
Engine
Oil
ELECTRICAL
SYSTEM
Ignition
Timing
Ignition
Circuit
Battery
Generator
Voltage Regulator
Starting
Motor
FUEL
SYSTEM
Fuel
Recommendation
Carburetor
Fuel
Pump
COOLING SYSTEM
Water
Temperature
Water
Pump
VALVES
VALVE TAPPETS
REVERSE GEAR
Paragon
Manual
Paragon
Hydraulic
Chris O Matic
ANNUAL LAY UP
ANNUAL FITTING OUT
MAINTENANCE
SCHEDULE
ENGINE
INSTALLATION
RECOMMENDATIONS
Mounting
Alignment
Exhaust
Recommended
Exhaust
Size
Engine
Control
Instruments
INFORMATION
AVAILABLE
R
OTAT10N DIAGRAM
MAJOR
PARTS OF
CHRIS CRAFT V 8
ENGINE DIAGRAM
WIRING DIAGRAM
6
7
8
8
12
3
13
i4
16
16
17
18

Page
3
YOUR
NEW
CHRIS CRAFT
MARINE
ENGINE
Your
Chris Craft
Marine
Engine
has been
delivered to
you only
after
a
great
deal
of
skillful
engineering
careful
manufacture
and
exhaustive
testing
Chris Craft s
years
of
practical
experience
in the
marine field
are
packed
into
every engine
leaving
our
plant
With
reasonable care
during
operation
and
a
minimum amount of
maintenance
this
engine
will
deliver
a
maximum
amount of
dependable
economical
performance
and
long
life
IDENTIFICATION
On
every
engine
there
is a
plate
on
top
of the
manifold
giving
the model and serial
num
ber This
information is
important
and should
be included in
all
parts
orders
and cor
respondence
relating
to the
engine
A
typical
name
plate
is shown on
the
inside
front
cover
USE GENUINE
FACTORY
REPLACEMENT
PARTS
All
Chris Craft Marine
Engines
have
special parts
designed
to
give
the
best
perfor
mance under
conditions
found
only
in marine
use To
insure
long
life and
dependable
performance
we
strongly
recommend
that
only
factory replacement parts
be used
These
may
be obtained from
your
nearby
Chris Craft
Dealer
or
directly
from
thefac
tory
Internal
engine parts
of other
manufacture
are
plainly
marked in
the
parts
lists
and
these
parts
may
be obtained from
the manufacturer and
his
distributors
BREAK IN
It
is
very important
that the
engine
be broken in
properly
All
moving parts
in the en
gine
are new
and have
only
been run
for
a
few
hours while the
engine
had its final test
Engines
must be run
carefully
in
the
beginning
until all
parts
are worn
in
and
the
en
gine
becomes limber
Only
then
will
it
be safe to
run
the
engine
fast for sustained
per
iods of
time
Running
new
engines
or
engines
after
a
major
overhaul at
excessively
low RPM
for
long periods
should
be avoided because it will
tend to
prolong
the break in
period
and
delay proper
seating
of
piston rings
During
the first
ten hours
operation do not
exceed 2500
RPM
During
the second ten
hours
operation do
not
exceed 3200
RPM We
do not
recommend
turning
this
engine
in
excess of
3600 RPM
Use
in
excess of 4000 RPM
voids
factory
warranty
To
tell how
the break in
of
the
engine
is
progressing
let
the
engine
run
at
approxi
mately
1000
RPM
turn
off the
ignition
key
and
note how
quickly
the
engine
comes to a
stop
The
new
engine
will
stop
at
once but as
the break in
process
progresses
andthe
engine
becomes
more limber
it
does
not
stop
as
suddenly
Aii
abnormal rise in
engine
temperature
will
indicate
that the
engine
is
being
run
a little too
fast
During
the entire
life
of the
engine always
run
the
engine
at
medium
speeds
to allow
the
oil
to
warm
up
before
running
at
sustained
high
speeds
When
coming
to the dock
after a
run
always
allow
the
engine
to run
at
moderate
speed
for three to
five minutes
before
turning
off
the
ignition
This
can be done
by
slowing
down
several
hundred
yards
before
you
get
to
the dock
and
coming
in
slow
or
letting
the
engine
idle
after
you
have
come
into the
dock
This is
to allow the
valves to
cool down while the
water
is stillcir
culating
in
the
engine
This will
help
prevent warped valves

Page
4
TO
START ENGINE
Before
starting
the
new
engine
check the
oil level
in
the
crankcase
check fuel in
tank
and
ventilate
engine compartment
thoroughly
Shift the
reverse
gear
to
neutral
posi
tion
Open
the throttle
slightly
approximately
18
open
Turn
switch on
operating
fuel
pump
until
fuel
lines fuel filter and
carburetor are full
Then
depress
starter
button
or turn
key
all
the
way
to
the
right
to
engage
the starter
Do not
engage
the
starter for
prolonged periods
If
the
engine
does
not start
immediately
investigate
the
cause of trouble As
soonas the
engine starts release
the
starter Check
to
make
sure that oil
pressure
is
present
and
that
cooling
water is
circulating
This
engine
is
equipped
with an automatic
choke
If
the
engine
does not
start due to
flooding
the throttle
should be
opened
fully
which will
reduce the
choking
action
The starter
should
be
engaged
with
throttle
opened fully
As
soon as
engine
starts
close
the
throttle
When
taking
the boat
out
always
run
the
engine
at
moderate
speed
until
the
oil warms
up
When
returning always
allow
the
engine
to
run
slowly
for several
minutes
before
shutting
it
off
This will
greatly
extend the life of the
valves
To
accomplish
this
many
owners
plan
to idle
their
engines
for the last
several hundred
yards
travelled
Before
engaging
or
disengaging
the
reverse
gear
it is
advisable to
slow the
engine
down
to 1000 RPM
or
less
Shifting
at
higher
RPM
will shorten
the life
of the reverse
gear
and
may
cause
damage
LUBRICATION SYSTEM
OIL
PRESSURE
Form the
habit of
watching
the oil
pressure
gauge
Advance notice
of serious trouble
is
nearly
always
indicated
by
the
oil
gauge
Oil
pressure
should be
approximately
18
lbs
at
idle
speed
and
35 to
45 lbs at
maxi
mum
speed
with the
engine
hot
ENGINE OIL
RECOMMENDATION
Chris Craft
Marine
Engines
should be
serviced with oil of
good
character and
quality
to insure
smooth
operation
freedom
from
trouble and best
engine performance
obtain
able A
Marine
engine
works
at
maximum
capacity
90
of the
time while an automo
bile
engine
rarely
works at its maximum
even 1015
percent
of
the time
Therefore
the
requirements
for a
good
lubricating
oil are far
greater
in a marine
engine
We
recommend
the use
of S A E
430
lubricating
oil
containing detergents
and addi
tives
conforming
to API
designation
MS
or
DG
U S
Military
Spec
MIL L 2104 A
or
supplement
1
or I C E I
designation
A or B
It
is not
recommended that
different brands
of oil be mixed
Always replenish
with the
same make and
type
of
oil that is in
the crankcase Ifit is
necessary
to
change
the make of
oil
always
drain
the
crankcase as
completely
as
possible
before
refilling
TO
CHANGE ENGINE
OIL
The
new
engine
when
shipped
is filled
with S A E
10 break in
oil After ten to fif
teen
hours
running
this oil
should be
replaced
with S A
E
30
motor oil
Thereafter
the
oil
should be
changed every fifty
to
one hundred
hours
depending
upon
the
type
of

Page
5
service
to
whichthe
engine
is
subjected
An
engine
that is used for
short runs
needs an
oil
change
more often
than
an
engine
which
is
run
longer
periods
of time
as
long
runs
permit
the oil
to
attain
proper operating temperature
at which
there is less
possibility
of
contamination and the oil will remain
clean
longer
To
remove the old oil from
the
crankcase
the best method
is
to pump
the oil
out with
a
suction
pump
The
suction tube
maybe
inserted into
the oil
test rod
opening
or
through
the
14
plugged
hoe on the side of
the oil
pan
next to
the
test rod
hole The oil
may
be
pumped
out of
the reverse
gear except
Paragon Hydraulic
gears by
removing
the
reverse
gear top
cover
and
pumping
the
oil out of this
unit
On
engines
withreduction
gears
there
will remain
from
1 to
112
quarts
in that unit
which cannot
be removed
Most marine service
stations are
equipped
with
special pumps
for this
purpose
A
suitable hand
pump may
be
purchased
from
the
Chris Craft
Service Parts
Department
at
Algonac
Michigan
Direct drive
Model 283
engines
hold
approximately
7
quarts
of oil
but this amount
will
vary
depending
upon
the
installation
angle
Engines
equipped
with
reduction
gears
will
hold
an additional
1
to
1
1
2
quarts
of
oil
ELECTRICAL
SYSTEM
The
electrical
equipment
on the
engine
is
of
Auto Lite manufacture
and is
guaranteed
and serviced
by
the
Electric Auto Lite
Company
of
Toledo
Ohio thru
its
official
ser
vice
stations
located
in
important
cities
throughout
the
world
A
directory
of these
service
stations
may
be obtained
by
writing directlyto
the Parts and
Service
Division
Electrical
Auto Lite
Company
Toledo
Ohio
It is
important
that all
electrical
connections be
periodically
inspected
to
make
cer
tain that
the
condition of the
insulation on wires
is
good
all
mechanical connections
are
tight
and all
connections
are
free
from corrosion
In boats
operated
in
salt water
it is
especially important
that all
connections be
inspected
two
or three
times
each
year
If
necessary
each connection
should
be taken
apart
cleaned with fine sand
paper
given
a
light
coating
of
vaseline to
retard
corrosion
and
tightly
reconnected
Battery
terminals should be
cleaned often with
water
and
baking
soda
coated
withvas
eline
and
reconnected
High
tension
leads
must be
in
good
condition Even a small
crack
in
the insulation
might permit
oil
or moisture to
cause a
partial groundrequir
ing
replacement
of the
lead
IGNITION
TIMING
To set the
ignition
timing
use
a
timing
light
The
flywheel
is
provided with a
timing
mark on its
rim
and an
ignition
timing
indicator
is
positioned
over the
flywheel ring
gear
With
the
timing light
connected to
the
battery
and
No
1
spark
plug
flywheel
end
and
the
engine
run at idle
500
RPM
set the
distributor
so
that the
timing
light
shows
the
flywheel timing
mark
directly
in
line
with the
ignition
timing
indicator
Recheck
ignition
timing
after
tightening
the distributor to
be sure that it is
properly
s
et
IGNITION
CIRCUIT
The
distributor should
be
inspected
every
100
operating
hours or not
less than
every
six
months Make sure the vent hole in
the bottom
of the distributor
housing
is
kept
open
After
removing
the
distributor
cap
inspect
the breaker contacts
If the con

Page
6
tacts
are
grayish
in
color and
are not
more than
slightly pitted they
need not
be
re
placed
We recommend
that new
breaker contacts
be installed
when
required rather
than
attempting
to reface
the
old
contacts
Breaker contacts
should be set
with a
gap
of 017
inch and the
ignition
timing
should
always
be reset
using
a
timing light
In
spect
all
wires and connections
and clean
up
any corrosion
at
connections
if
present
Spark
plugs
should
be
cleaned and
regapped
periodically
Make
certain there
are
no
cracks
in
the
porcelain
and that
the
terminals are clean
and
tight
Any spark
plug
which is found
to have burned or
badly
worn electrodes should
be
replaced
For all
Chris Craft
Marine
Engines
we
recommend
Champion
UJ 6M
spark
plugs
and the cor
rect
gap
is 028
inch
BATTERY
The
battery
should be
kept
near full
charge
To check
the condition of the
battery
specific
gravity readings
should be
taken
Also
keep
the
batteryfilled
with
pure
water to
the
proper
level
distilled
water is
best
Never let the
level
go
below
the
top
of
the
plates
in
the
battery
GENERATOR
AND
VOLTAGE
REGULATOR
Make sure
generator
is mounted
securely
and the
generator
belt
is
tightened
so that
approximately
12
deflection is
present
The
generator
and
voltage regulator
shouldonly
be
adjusted
andrepaired by
Auto Lite
service
stations
which
have
instruments and
information
necessary
to
correctly
re
pair these units
STARTING MOTOR
Make certain
the
starting
motoris
mounted
securelyand
the Bendixdrive
is
freefrom
dirt If the Bendix
drive accumulates
gummy deposits
these
should be
cleanedusing
kerosene and
a
brush After
cleaning apply
10
engine
oil
sparingly
to thearmature
shaft
and screw
threads
The
starting
solenoid
should be
clean connected
securely
and
operating
properly
FUEL SYSTEM
FUEL RECOMMENDATION
For Chris Craft
V8 Marine
Engines
we
recommend
that the
following
fuel
be
used
based
on
fuels
currently
available
Gasoline used for
Chris Craft
V8
Marine
Engines
should be
regular
automotive leaded
type gasoline
of at
least
88 octane
rating research
method
The
use
of marine
white
gasoline
should be avoided
unless
it meets this octane
requirement
Occasional
use of leaded
type gasoline
is
always
recommended

Page
7
CARBURETOR
The carburetor is
guaranteed
and serviced
by
the
manufacturer
and his
distributors
Check
the
carburetor
name
plate
for
manufacturer
It is
important
that
all
fuel
connections be
kept
tight
and
that dirt be
kept
out of
the
carburetor
Periodically
clean
the carburetor
flame arrestor
and
empty
any deposit
out of the fuel
filter
sediment
bowl
The
carburetors are
equipped
with
non adjustable
high
speed jets
which
require
no
attention
The
idle
adjusting
needles
should be
turned to the
position
where the
engine
idles
smoothest
FUEL
PUMP
The
electric
fuel
pump
furnished with
the
engine
is
guaranteed
and serviced
by
the
manufacturer
The
clicking
sound
heard
from the fuel
pump
is normal
and should
be
present
when
ever the
ignition
switch
is
turned on
COOLING SYSTEM
The
model 11G83
engine
is
equipped
with a dual water
pump
having
rubber
impellers
The two sections
of the
pump
direct water
equally
to each bank of
cylinders insuring
proper
cooling
water distribution
Cooling
water is
pumped
first into the
exhaust
manifolds where it is
preheated to re
duce
rapid
temperature
change
and
possible
condensation after
being
routed to
the
cyl
inder
block
The
cooling
water
after
traveling
the
full
length
of the
exhaust mani
folds and
back
again
is
routed
into
the
rear
end
of the
cylinder
block
The water
flows up
around the
cylinder
bores
and
into
the
cylinder
heads
After
cooling
the valve
areas
in
the
cylinder
heads the
water
passes
out of the front of
the heads
and
is
con
ducted
to the after end
of
the
engine through separate overflow
passages
in the
mani
folds
It leaves the
engine traveling
through
the exhaust
tube where it
helps keep
the
exhaust tube cool and
helps
to
muffle
engine
noise
OVERBOARD
M
1
X
777
7
777
1
2
r
i
Z
v4
m
O
rn
M
co 4
D
I
0 S Z
X m
7n
A
p
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r
OVERBOARD
E
DUAL WATER
PUMP
OIL COOLER HYD ONLY
WATER
COOLING
SYSTEM MODEL
283
WATER
INLET
SCOOP a STRAINER

Page 8
WATER TEMPERATURE
The water
temperature gauge
is not
absolutely necessary
but if one is
installed
the
reading
shown
will be a
good
indication that there
are no obstructions inthe water
pas
sages
and
that
the
water
pump
is
operating
properly
Normal water
temperature
read
ings
will
range
between
1150 to 1500
depending
upon
the
temperature
of the water
ent
ering
the
engine
WATER
PUMP
The water
pump
is
equipped
with
a
water
seal that is
automatic in its action If leaks
occur this seal should be
replaced
A
worn
pump
can
often
be
easily
repaired
with the
replacement
of
rubber
impellers
Access to
the
impellers
is
gained
by
taking
out four
capscrews
which
hold the back
plate
in
position
With
the back
plate
removed impellers
can be
changed
Cooling
water
hoses should
always
be
kept
tight
and
if
seasonal
inspection
shows
them
to
be soft or deteriorated
they
should be
replaced
VALVES
AND
VALVE TAPPETS
Good valve action is
very important
to the
efficiency
and
smoothness of
the
engine
The
first
sign
indicating
need
for
grinding
valves will
be loss of
engine speed
in
creased
fuel
consumption
and
rough idling
A
check of
the
compression
in
each
cyl
inder
will
give
a
good
indication of valve
condition
Engines
that are
operated
with
proper
care will
require
a minimum
amount of valve
maintenance
Valve
clearance should
be checked
in
the
new
engine
after 10 to 20
hours
operation
and
every
100
hours
thereafter Valve clearance
should be checked
with
the
engine
hot
and
should be
adjusted
to 010
on intake valves
and 020 on
exhaust valves
REVERSE
GEAR
PARAGON MANUAL
REVERSE GEAR
OPERATION
The
reverse
gear
is
very
simple
to
operate
With the
control lever
ahead
forward
drive will
be
engaged
and with the lever in the middle the
gear
will be
in
neutral Un
der
ordinary
conditions the
engine
revolutions
should be
kept
below
1000
when
engag
ing
or
disengaging
the
reverse
gear
Engaging gears
at
higher
revolutions will
pre
maturely
wear the clutch
plates
in
forward
drive
or the brake band
in
reverse drive
resulting
in
more
frequent
adjustments
and
shorter
gear
life
It
is
not recommended that the boat be
run
at
the dock with the
reverse
gear
in neu
tral
position
for
long
periods
of
time
The
gear
will not
always
hold
a
positive
neu
tral
and
excessive wear
could
result

Page
9
When
the
engine
is not
running
it is
best to
leave the clutch in neutral
position elim
inating
any
strain
In some
reverse
gears
there will
be
present
a
backlash
noise
especially
at
low
RPM
This is normal
and
should
not
cause concern
HOW THE REVERSE
GEAR
WORKS
The
forward
drive is obtained
by
means of a
multiple
disc
clutch The
locking
or
clamping
of
these discs
10
1108
in
illustration
is
brought
about
by
the
pressure
produced
by
the outward
movement of the
fingers
21
in
illustration
when
the
oper
ating
lever
is thrown into
the forward
position
On the
forward drive the whole
re
verse
gear
is locked
together
as a solid
coupling
The reverse
drive is obtained
by
clamping
the brake band
19
in
illustration
around
the
outside drum
or case which carries
the
pinion
gears
The
reverse
motion
is
then
obtained
by
driving through
the
pinion
gears 5
in
illustration
with
the forward
drive
discs
running
free
In neutral
position
both
the
discs and
brake
band
are free and
the
pinion
gears
run
idle
ADJUSTMENT
FOR THE FORWARD DRIVE
If
the
gear
slips
in the
forward drive
adjustment
is made
as follows
Back out the
lock screw No
76
until the end
of
it is clear
of the
hole
in the
pressure
disc No
11
then
turn
the
adjusting
finger plate
No
28
to the
right
until the
lock screw
No 76 is
opposite
one of
the holes
in the
pressure
disc
No 11 Then
tighten up
the
lock
screw
No
76 and be
sure
that the
end of the
screw
enters the
hole in the
pressure
disc No 11
Repeat
this
procedure
until
the
reverse
gear
holds on the forward
drive
An
adjustment
of
one or two holes is
usually
sufficient
If normal
adjustment
does
not correct
slipping
or
if it
causes
abnormally
hard shift
ing
there
is a
possibility
that
some of the
forward drive discs
or
parts
may
be
worn
so that
replacement
is needed
ADJUSTMENT FOR
THE REVERSE
DRIVE
In
the reverse
position
the
brake band
grips
and holds
the
gear
cage
or drum from
turning
If
the drum
slips
it is
necessary
to
tighten
the
adjustment
of
the brake
band
which
adjustment
is made as
follows
Loosen the
locknut on the inside of the
upright lug
at the
top
of the
brake band to the
amount
you
think the brake band needs
adjusting
Then
tighten
the
adjusting
nut
on
the
outside of this
lug
until
it is
again
tight against
this
lug
Repeat
until
the brake
band
grips
the
gear cage
and
keeps
it from
revolving
The
adjustment
should be
tight
e
nough
so
that a decided
snap
is felt
when the lever is
thrown into
the reverse
position

Page
10
MANUAL
REVERSE GEAR
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PARAGON
HYDRAULIC REVERSE
GEAR
Page
I1
The
actual
operation
of the
hydraulic
reverse
gear
is
nearly
the
same as
the
manual
reverse
gear
except
that
hydraulic pressure does the work in
shifting gears
The
hydraulic section of the
reverse
gear
is
completely
contained
within the
reverse
gear
housing
For the
forward drive
no
adjustment
is
needed
For the
reverse drive there is an
ad
justment
on the
outside of the starboard side of
the
reverse
gear
housing
If
the
gear
slips
in
reverse
drive
remove the
long
acorn nut
covering
the
adjustment screw
Loosen the
lockout
and with the
reverse
gear
in neutral
position
and the
engine
idling
tighten
the
adjustment
screw
until the
propeller
shaft
just
begins
to
turn Then loosen
the
adjustment screw
14
turn
tighten
the locknut
and
replace
the
long
acorn
nut
The
hydraulic
reverse
gear
uses an
oiling system separate from
the
engine
lubricat
ing
oil
The manual
reverse
gear
does
not
use a
separate
oiling system
Keep
the
hydraulic
reverse
gear
oil
level up to the
full
mark indicated on
the oil test
rod in
the
hydraulic
reverse
gear
unit When
it
is
necessary
to add oil to
the
hydraulic
reverse
gear
use a
good
grade
of SAE 30
non foaming
oil or
hydraulic transmission
fluid
Type
A The
same
oil
used for
engine
lubrication
and
described
on
Page
4 is
suit
able for
use
in
the
hydraulic
reverse
gear
CHRIS O MATIC
CONTROL
The
Chris O Matic clutch
control is an
electric
hydraulic
mechanism
which
shifts the
engine
reverse
gear
for
you Simple movement of
an electrical
switch
is the
only
ef
fort
required
to
shift
gears
In order that you
may
secure
the
utmost
pleasure
and
convenience
from
this clutch
control
system we
would
like to
point
out
that
in
close
work such
as
docking
the
se
lector does
not have to
be left in forward
or reverse
position
until the full
shift
is
com
pleted
With
a little
experience
it will
be found
that
partial
shifting
can be
accomp
lished with
greater
rapidity
than
with
any
other
method
As
in
manual
control
shift
ing may
be
made from
forward to
reverse or
vice versa
without
delay
in
neutral
CHRIS O MATIC SIGNAL
LIGHT
A
red
or
yellow
signal
light
is
usually
installed
on the
instrument
panel
This
light
flashes
only
when the
Chris O Matic is
actually
shifting
If
the
light sig
nals
either
intermittently
or
continuously
after
the
shift
is
completed
the
unit is out
of
adjustment
and there is
danger
of
severe
damage
If
emergency adjustment
does not
correct
the
operation disconnect the
main feed
wire
from
the
starting
solenoid
The
reverse
gear
may then
be
shifted
manually
using
a
large
wrench
after
disconnecting
the
cylinder shaft
yoke
from the
clutch
arm
The
reverse
gear
must
first
be
properly adjusted
and
operating
correctly
in
order to
correctly adjust
the
Chris O Matic unit
because the
Chris O Matic
simply
moves the
reverse
gear
to
the
proper position
by
power Before
attempting adjustment
of the
Chris O Matic
unit
make
marks
on the
engine
stringer
to indicate
accuratelythe
po
sition of
the shift
lever in
forward neutral
and reverse
when shifted
manually
The
shift
lever
has a hole
through
which a
piece
of small
rod
may
be
put
to be
used as an
indicator
The
Chris O Matic
unit is
then
adjusted
so that
the
shiftlever will
be
pushed
to
these three
correct
positions

Page
12
Neutral
adjustment
Loosen knurled nut so
that the
selector can be
rotated
withinthe
slot in the
locating
strap
The selector
should be rotated
so
that
the
unit
stops
with
the shift lever
as close as
possible
to the
neutral mark when
the Chris O
Matic
is
operated
from
forward to neutral and from
reverse to neutral
Tighten
the knurled
nut
to hold selector
in
position
Forward
Adjustment
The
green
Forward
plate
on one
side of the
selector should
be
rotated to the
right
or
left as
required
to
give
the correct amount of travel
It is
necessary
to
slightly
loosen
the four knurlednuts
holding
this
plate
in
order to rotate
it The
adjustment
should be checked
by
working
the Chris O Matic from
neutral to
forward
checking
to
make sure that it
stops
with the shift lever at the
proper position
Reverse
Adjustment
This
adjustment
is made the
same as the forward
adjustment
except
that
the red Reverse
plate
is
rotated
until the
proper
amountof reversetra
vel is
obtained
ANNUAL
LAY UP
Drain all
water On
new
engines
water
drain
plugs
are
painted
red
and
can be
eas
ily
located
Sometimes
the drains
in the block will
be
clogged
and
it will
be neces
sary
to
probe
with a
piece
of wire
to
dislodge
sediment
Leave drain
plugs
out
during
storage
On
engines
used
in
salt water
thoroughly
flush
all
water
passages
with
fresh water
and if
necessary clean
out
any deposit
or corrosion
which
might
restrict
the water
flo
w
Drain
locations are as follows
1
Plug
on
each side of block
located
just
above oil
pan midway
between front
and rear
engine supports
2
Plug
at
bottom of water
pump
located
starboard
side behind
generator
Operate
starter
so that water
pump
will rotate
draining
each
separate
section of
rubber
impeller
3
Plug
in bottom of
exhaust
adapters
located at aft
end of
each exhaust
manifold
Drain
engine
oil
and
put
fresh oil in the
engine
before
storage
This
will eliminate
the
danger
of
any
acids
which
might
have
formed
in the oil
doing
damage
to
the bear
ings during
storage
With
engine
running
at
approximately
1000
RPM
and
carburetor flame arrestor
re
moved
pour
into the carburetor throat
about
one
cup
of
clean
heavy
engine
oil Per
mit the
oil to
stall the
engine
and turn
off the
ignition
switch
promptly
The
oil will
be
distributed
through
the combustion
chamber and
passageways
providing
a
protec
tive
coating
on internal
parts
The
battery
should be
removed and stored
making
sure that it is
kept
nearly charged
to
prevent deterioration
Plug
the
exhaust
pipes
to
prevent
moisture
from
entering
the valve
chambers
during
storage
Drain
the fuel
system thoroughly
The fuel filter
sediment bowl should
be
emptied
and
cleaned
The
carburetor
can be
drained
when
removed
The fuel
in the tank can

Page 13
be
left full or if
local insurance
companies
require
that the fuel tank
be
emptied
it
will have
to be
siphoned
or
pumped dry
The
carburetor
flame arrestor should
be covered to
prevent
moisture
from
getting
to the
valves
Masking
tape
will make
a
good
seal
or a blind
gasket
can be
installed
between
the
carburetor and intake
manifold
The fuel
tank vent
fitting through
the hull and
the
small
vent hole
in the
side of the
gas cap
should
also be covered
Any
blemishes in
engine paint
may
be
easily
corrected
by
repainting
with
Chris
Craft
blue
engine
enamel which
is available
in
handy Spray On
cans
from
your
Chris Craft
dealer
Go
over
any unpainted
exposed
metal
parts
with an oil
soaked
rag
to
prevent
rust
or
corrosion
Leave
the
reverse
gear
in neutral
position
during storage
ANNUAL FITTING OUT
Replace
all drain
plugs
Remove
plugs
from
exhaust
pipes
Uncover
carburetor flame
arrestor or
remove
blind
gasket
under
carburetor if
used
Uncover fuel tank vent
fitting
and small
vent hole in
side of
gas cap
Install
battery
being
sure
battery
is
fully
charged
and filled
with
water
to
recommended
level
Connect
battery
cables
tightly
using
vaseline
to
keep
connections free
from
corrosion
Make final
check of
spark
plugs
and
ignition
distributor
contacts
replacing
and
adjusting
where
necessary
Start
engine
See
Page
3 for
starting instructions
After
engine
starts
observe
instruments for
normal
readings
and
make
certain
cooling
water is
flowing properly
MAINTENANCE
SCHEDULE
The
following
maintenance
schedule
is offered
as a
suggestion
only
Maintenance
requirements
will
vary
according
to
the
engine usage
Each time
the
engine
is
run
Measure oil level
Check fuel level
Make sure
cooling
water
is
circulating
after
starting
engine
Battery
water
should be
brought
up to level
every
one
or
two
weeks
Every
50 hours
running
Change
oil
every
50 to
100 hours
depending
on
type
of
service
Clean
carburetor flame
arrestor

Page
14
Clean
any
dirt out
of fuel filter
bowl
Clean
crankcase
ventilating
valve
each
time
oil
is
changed
Distributor 3 to 5
drops
medium
engine
oil in
oiler at
side of
base
Correct
any
general
fuel
or
water
leaks
Every
100
hours
running
or
not
less than
every
6
months
Any
dirty
electrical
connections
should be taken
apart
cleaned and
reconnected
tightly
Replace any
deteriorated
rubber
hoses
Replace
oil filter element
every
second or third
oil
change
Remove
distributor
cap and
distributor
rotor Put 5
drops
medium
engine
oil on felt at
top
of center
shaft under
rotor Put 1
drop
of
light engine
oil
on
breaker
arm
pivot pin
Wipe
off
excess Put
light
film of
grease
on breaker
cam
Wipe
off
excess
Examine
condition of
ignition breaker contacts and set
gap
to
proper dimensions
Examine
spark
plugs
Clean
or
replace
any plugs
which are
dirty
or
show evidence of
burning
Set
ignition
timing using
a
timing
light
Align engine using
feeler
gauge
at
engine coupling
Readjust
valve clearance
to
compensate
for
normal wear
Adjust
reverse
gear
Examine
condition of
engine
paint
Aerosol
Spray
Paint
of blue
engine
enamel
is
available for
touchup
ENGINE
INSTALLATION
RECOMMENDATIONS
MOUNTING
A
rigid
bed
should be
prepared
for
mounting
the
engine
Heavy
wood
engine string
ers
running
fore
and aft in the boat
with
proper
cutouts for
mounting
the
engine sup
ports
are
usually
used
ALIGNMENT
Proper
alignment
with the
propeller
shaft
is
important
for
engine
efficiency
and
smoothness
The
two
coupling
faces
one
on
engine
and one
on
shaft
must
be
paral
lel Use a feeler
gauge
or
piece
of shim
stock not
more than 003
inch in
thickness
When
coupling
faces are
brought together
by hand
not
bolted
the 003
feeler should
be
tightly
gripped
at all
points
around the
edges
of the
couplings
Alignment
must be
correct
when
couplings
are viewed from
the side
as well as when
seen from
the
top
It
is
necessary
to
lift
lightly
on the shaft
and
coupling
to
compensate
for the
weight
of those
two
items but be
very
careful that
only
the
weight
is
lifted
and the shaft is
not
sprung
To
adjust
any
misalignment
the
corners of the
engine may
be raised
or
lowered
by
using tapered
cast iron
wedges
In
addition the
rear
engine
mounts are
designed
to
adjust
lateral
alignment
EXHAUST
The
cooling
water
overflow
is routed into
the
exhaust
tube
directly
out
of the
exhaust
manifold
The
flow of water
through
the
exhaust tube
will cool the
exhaust
and in
ad
dition will
help
to
quiet
the exhaust
noise
We
recommend that
copper
tubing
exhaust hose or
iron
pipe
of
proper
diameter be
used for
the
exhaust
pipe Copper
tubing
can be
bent as
needed to fit
a
particular

Page 15
installation
or
can be
welded
giving
the
required
angles
Be
sure to use
correct
diameter
exhaust
pipe
and
keep
bends to a
minimum to
insure least
amount of ex
haust restriction
possible
RECOMMENDED
EXHAUST SIZES
Model 283 dual exhaust
21
2
I
D each
Model
283
single
exhaust
312 I D
each
If
both a muffler
and
an
exhaust
deflector at the
end of the tube
are
used
4
exhaust size will be
required
We
strongly
recommend the use of
standard
Chris Craft exhaust
elbows for
connec
ting
from
the
exhaust manifold to
copper
tube
or exhaust hose
water
cooled exhaust
systems
The
exhaust elbows are
designed
to
give
minimum
back
pressure
and
are
easy
to install
COOLING
WATER
INTAKE
The
dual water
pump requires
two
inlet
hoses
34
I D
hose which
will not
col
lapse
easily
should be used Dual
34 intake
thru hull
fittings may
be used
or a
neat
installation
can be made
using
a
single
Chris Craft
14049
intake
scoop and
a
Chris Craft 6891
Y
fitting dual
hose
adapter
ENGINE
CONTROLS
Various
controls will
have
to
be
connected to
the
engine
All
linkages
should be
made
strong enough
to
withstand
any
strain to
which
they
will be
subjected
and
di
rect
positive
action
is
necessary
in
all
connections
Keep
play
at a
minimum
For the
reverse
control
a
hand
lever
may
be
mounted
directly
on the
reverse
gear
cross shaft
or a remote
control can be linked
through
suitable bell
cranks
and
pipe
connections to
the
engine
With
Chris O Matic
reverse control the
installation
instructions
supplied
with the
unit should
be
followed
Suitable
throttle controls should
be installed
and connected
to
the
proper
carburetor
arms Make
sure that the
throttle on the
carburetor
will
open
and close all
the
way
All
switches
should
be
resistant
to
rust and
corrosion
for
marine use
They
should
be
connected as shown in the
wiring diagram
INSTRUMENTS
An
oil
pressure
gauge
tachometer
and ammeter
should be
installed A
fitting
is
provided
on
each
engine
at
top
front for
an oil pressure
gauge
In
the same local
ity
a
fitting
is
provided
for the
attachment of
a
tachometer
drive
cable The
cable
is
driven at
one half
engine
speed
and
a suitable
tachometer
should be
used Some
tachometer cable
installations will
require
a 900
angle adapter
at
the
engine
The
ammeter
should be
wired into
the
electrical
circuit
as
detailed
on
the
engine
wiring
diagram
If
desired
a
temperature
gauge may
also be
installed
There
is
a thread
ed
hole
suitable for
the insertion of
a
temperature
gauge
sender
on either
side
of
the
engine
in the
Y s between the
manifold
and
cylinder head

Page
16
INFORMATION
AVAILABLE
We are in
a
position
to offer
engineering
assistance to all who are
operating
Chris
Craft boats
or
who are
making
Chris Craft
engine
installations
If
you
wish
gener
al data
or
information
concerning
an individual
problem
send us
full
details We
will be
happy
to
give
a
propeller
size
suggestionbased
on our
experience
to
improve
present performance
or
for a new
installation
ROTATION DIAGRAM
Standard
ChrisCraft
Engine
Installation
TWIN SCREW
irns
Counter
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TYPICAL
41
ENGINE Page
17
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