IMPORTANT:
DO
NOT
,USE
SCOOP
TYPE
WATER INLET
FITTINGS when installing
an
Aqualift mullIer. Forward facing
scoops develop
su fficient
ram
pressure
to
force water
past
the
set's
water pump, £looding the exhaust system where
it
may flow back, flooding the engine cylinders.
This
can
happen only
if
the electri c
set
is
not
running
and boat
is
underway.
1. Secure the muffler to the predetermined location (within
ten-feet of the engine exhaust outlet) using
"L"
brackets (Figure
6)
Or
other suitable mounting devices
such
as
wood
blocks
or
metal straps. Flexible mounts
.
may
be
used if
so
desired. Allow
for
air passage under
muffler
to
prevent condensation.
UL"
BRACKET
~
~~H~~SHER
(MINIMUM
lSI-
NUT
BASE'
OF
3)
~-
FIGURE
6.
SECURING :THE MUF
FLER
~
Do
not
drill holes
high.
er
tha.
n.
one inch
. CA above the extreme lower edge of the
muffler
when
installing mounts.
2. Connect the .f'xhaust lille(
11/2
")to
the marine elbow
on
the engine and
to
tre
exhaustiqlet
on
the muffler. The dis-
tance
from
the base
of
the muffler to the upper elbow
on
the exhaust tubingfrom the muffler outlet must not exceed
fourcfeet (see Figure
3).'
..
11
SHORT
NIPPLE--..
DOUBLE
TAPPED
TANK
BUSHING
LONG
NIPPLE
r
.
(INSIDE
.............
MUFFLER)
OUTLET
I
.~
NOTE:
LONG
NIPPLE
GOES
INSIDE
TANK
FIGURE
7:
AQUA
LIFT
MUFFLER
3. Connect the exhaust line to the muffler outlet and
to.
th'e
upper elbow. A :onventional automobile tail-pipe hanger
bracket
may
be used
to
hang the upper elbow. Rigid pipe
may
be used
in
place of flexible hose for certain applica-
tions. There must be a pitch of one-h·alf,)nch per foot
(i.e.,
a 2 -
1/2"
drop
for
a
5'
run)
in
th~~;Chaust
tubing
between the engine exhaust elbow and
.th~.muffler
inlet.
Muffler
may
be
mounted below the level of the engine if
necessary. A
minimuin
drop of one-foot
is
necessary be- .
tween the engine exhaust outlet
on
the hull
to
prevent
water
from
washing into the system
(see
Fig. 3).
An
in-
crease
of
one standard pipe
size
for
every ten running
feet
of
exhaust
from
the muffler
to
the exhaust outlet
is
necessary
to
prevent excessive backpressure.
4. Connect the exhaust line
from
the upper elbow
to
the ex-
haust outlet
on
the
hull. The exhaust outlet
on
the hull
must
be
positioned
so
that a
minimum
of
water will enter-
while
at.
anchor
or
under
way
..
Important:
Be
sure all fittin;s are ti;ht.
~
~.elm.ng
on the muffler
will
damage the
h~
mterl.Or
protective coating decreasing
the'life
expectancy} .
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