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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
2
1
2
I D
each
Model 283
single
exhaust
3
1
2
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
3
4
ID
hose which will
not
col
lapse
easily
should be used
Dual
3
4
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
M atic
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
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