Banks Power GM Motorhomes: (Gas ’82 - 95 7.4L) PowerPack system (Carbureted, single air pump) - Manual (Page 9)

remove the bolts attaching the rear of the inner
fender panel to the chassis (behind driver’s side
front wheel). this panel may now be pulled outward
to provide working room around the left side of the
engine.
disconnect both battery cables.
remove spark plugs. label plug wires for rein-
stallation. See step 23.
disconnect and remove hot air tube (efe)
from heat stove on right exhaust manifold.
Starting from the rear and working forward,
disconnect and remove the entire exhaust
system, including the exhaust manifolds from the
engine.
remove air injection tube assembly from
exhaust manifolds. use of a flare-nut wrench,
penetrating oil and heat may be required on stub-
born pieces. Save the tube assembly for re-use.
remove the short nozzle tubes from the
exhaust manifolds. if any of these are stuck
in place by carbon, rust, etc., they may be tapped
out of the manifold with a hammer from the cylinder
head side.
NOTE: Use care not to distort the ends of these tubes
as they will be re-used and must slide through the
ports on the new manifolds.
install the starter heat shield on the starter
motor as follows: loosen the lower starter
motor thru-bolt 3–4 turns. Make sure the outer sole-
noid coil bolt is snug. Place a 5 ⁄
16
” i.d. x 3 ⁄
4
” o.d. flat
washer over the stud end of the upper starter motor
thru-bolt. hook the starter heat shield onto the end
of the outer solenoid bolt and slide the front of the
shield onto the two thru-bolts. the shield goes under
the loosened head of the lower bolt and over the
washer on the upper bolt. See Figure 10 .
tighten the lower starter motor thru bolt
against the heat shield. Place a 5 ⁄
16
” i.d. x 3 ⁄
4
”
o.d. flat washer and a 1 ⁄
4
–20 nylock nut on the stud
end of the upper thru bolt, and tighten. install a 1 ⁄
4
–20
nylock nut on the exposed end of the outer solenoid
coil bolt and tighten. Make sure heat shield will not
short against any wiring. See Figure 11.
clean exhaust manifold flange surfaces on
cylinder heads of any loose rust and carbon.
working from under the vehicle, guide the banks
exhaust manifolds up into place and bolt them to the
cylinder heads. use the original manifold bolts and
spark plug heat shields. Short heat shields are used
on the right front and left rear locations.
NOTE: Use a screwdriver handle, spark plug sock-
et and extension, or similar tool as a pry bar in the
heat shields to center them over the spark plug
hole centerline, then reinstall spark plugs.
NOTE: Some air conditioner compressor brackets
may have to be filed slightly to clear the top of the
left hand manifold flange.
20.
9 P.n. 96340
21.
16.
17.
18.
19.
13.
14.
15.
fiGure 10
fiGure 11
fiGure 12