General installation practices, Installation procedure – Banks Power GM Motorhomes: (Gas ’82 - 95 7.4L) PowerPack system (Carbureted, dual air pump) User Manual

Page 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

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

). 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.

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

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.