Banks Power GM Motorhomes: (Gas ’82 - 95 7.4L) PowerPack system (Carbureted, dual air pump) - Manual (Page 3)

3 P.n. 96341
GeneraL insTaLLaTion pracTices
for ease of installation of your banks
PowerPack ® system, PLease Read THIs
16-PaGe instruction PackaGe before
sTaRTIng anY WORK. (If any pages are missing from
this package, please call gaLe BanKs engIneeRIng
immediately for a replacement.) Become thoroughly
familiar with all components & phases of the installa-
tion before starting any work.
Inspect all components supplied for any foreign
material that may have entered during shipping
and handling.
Most motorhomes will need to be raised 5–6”
in front to allow the banks exhaust manifolds
to be slid into place from under the vehicle. This can be
accomplished by driving the vehicle upon several sec-
tions of 2 x 12 lumber nailed together to form a wedge.
Figure 9 shows how these ramps may be constructed
if your are doing your own installation.
warninG! Motorhomes are very heavy.
Whatever methods are used to elevate the vehi-
cle must be of sufficient capacity for the vehicle weight
involved. NEVER work under any vehicle supported
only by a jack of any kind. DO NOT USE concrete
blocks or other masonry items that may collapse
under the vehicle weight.
Pay particular attention to the routing of wires
and hoses. Keep them away from exhaust heat,
moving parts and sharp edges that may cause cuts or
other damage. Route or tie away from critical areas
as required. Keep all wires a minimum of 6” from hot
exhaust parts, 8” or more is recommended whenever
possible.
a general assembly diagram is provided in addi-
tion to the specific step or section diagrams
in the text (Figure 1 ). The general assembly diagram
shows relationships of individual components for ref-
erence: however, numbered step-by-step procedures
should be followed for proper assembly sequence.
Right-hand and left-hand designations refer to
the driver’s right or left, as seated in the vehicle
(i.e.: Right-hand refers to the passenger side of the
vehicle), unless noted otherwise.
The Banks Motorhome PowerPack is designed
to fit class “a” 454 chevrolet engine/chassis
combinations. Because of different equipment lay-
outs used by the various coach builders, some acces-
sories and components may have to be relocated to
accommodate the air intake components of the Banks
PowerPack.
notification
The banks ram-air Filter comes pre-oiled
and no oiling is necessary for initial instal-
lation. service the banks ram-air Filter as
specified in the cleaning and oiling the
banks ram-air Filter section of this manual.
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8.
insTaLLaTion procedure
the banks PowerPack cold air induction com-
ponents are designed to extend the factory air
intake path so that cooler outside air can be
picked up from directly behind the vehicle’s grille.
These components include a molded Banks super-
scoop™, 4” diameter flexible turbine, a molded
bulkhead fitting, and installation hardware. Figure
2 shows a typical hook-up of the air intake com-
ponents as they tie to the factory system. The
super-scoop also serves as a water separator to
drain out any rain water that may enter through
the grille.
The Banks PowerPack cold air induction package
is intended to fit a number of motorhome body
configurations. Because each coachbuilder has a
different layout of behind-the-grille components,
there can be no one set installation procedure
for the Banks Ram-air™ package. The following
instructions are intended as a guideline for install-
ing the Ram-air system. also, some coachbuilders
may have installed difficult to relocate compo-
nents (such as air conditioning freon piping) in the
areas where the banks induction system is nor-
mally mounted. In these cases, the installer will
have to find an alternate location for the Ram-air
components, or omit those pieces that are impos-
sible to mount.
Install the foam gasket strip in the groove
around the outside edge of the air filter
cover casting. Peal the paper off the gasket to
expose the adhesive. Trim the ends square with
a knife or razor blade to form a tight junction. do
not stretch the gasket as you install it.
Remove the engine hatch cover from the
vehicle. Remove the air filter cover and
filter element. clean any oil or debris from the
inside of the air filter base. install the new banks
Ram-air filter element and air filter cover cast-
ing. If your original air filter cover has tune up and
emissions specifications on it, save it for future
reference.
determine a path for the inlet air ducting
from the air filter base forward to the vehi-
cle’s grille. some vehicles have a plastic air inlet
duct attached to the snorkel on the base of the
air filter. This duct typically draws air through a
plastic air inlet hood that is mounted either above,
or to one side of the radiator. if this duct and hood
are in place, proceed to step 4. If not, skip steps 4
thru 8 and proceed to step 9.
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