Banks Power Chevy_GMC Trucks: Diesel ’82 - 93 6.2L Forced Induction- Sidewinder Turbo System (late-body) - Manual (Page 17)

PUMP aDjUsTMenT PrOCeDUre
IMPORTanT: Install the red plastic cap, supplied, over
the end of the positive battery cable bolt, to prevent
accidental shorting of the cable connection to ground.
cap will snap into place when pushed on. Re-install this
cap anytime cables have been removed for service.
nOTe: The turbocharger must be oil-primed
before initial firing of the engine, as detailed in
the following steps. This will prevent a “dry start” that
might cause immediate bearing failure in the turbo-
charger.
Loosen the turbocharger oil feed hose at the turbo-
charger fitting.
disconnect the wires from the top of the fuel injection
pump cover. note their location for reassembly (this
will prevent the engine from starting).
Re-connect both battery ground cables.
crank engine until oil flows from oil feed connection
at the turbo housing. Re-tighten connection and crank
engine until engine oil pressure gauge reading is in nor-
mal range. cranking time should be limited to 20 to 30
seconds, followed by one minute of cooling. The crank-
ing cycle should be repeated as required.
re-connect wires to injection pump.
Turn ignition on and, after the glow plug light
goes out, crank the engine, again in intervals of
20 to 30 seconds followed by one minute of cooling,
until the engine starts. It may not start immediately,
due to fuel lost when adjusting the injector pump.
It also may be necessary to depress the accelerator
pedal somewhat.
visually check the installation for any improperly
installed components, improperly routed wires and
hoses, intake air leaks and any wires or hoses too close
to hot exhaust or turbo components, or sharp edges.
Run engine at idle for a few minutes, to allow it to
warm. check oil feed lines for leaks. engine may idle
erratically or surge until air is fully purged from fuel
system.
drive vehicle. several short bursts of acceleration are
required to completely purge the fuel system of air.
The engine may run slightly rough until the purge is
complete, but will not in any way cause damage to the
engine.
check injector pump adjustment. see “cHecKIng
engine PerFOrManCe.”
injeCTiOn PUMP aDjUsTMenT
To obtain the maximum available performance from
your BanKs 6.2 diesel sidewinder Turbo system, and
to comply with emissions requirements, it is necessary
to make an adjustment to the fuel injection pump. The
pump adjustment increases the fuel delivery capac-
ity of the pump. This adjustment is made by turning
an internal screw, found within the pump. Be sure
to adjust the pump with the engine and pump cold.
The pump adjustment will provide a 30% or greater
increase in rear wheel horsepower. suitable for general
use, work trucks and towing.
nOTe: exhaust gas temperature must not exceed
1100°f, as indicated on the egT gauge (pyrometer)
furnished with the kit. if the egT approaches this tem-
perature under heavy, uphill load, the fuel pump capac-
ity adjustment must be reduced.
The pump adjustment can easily be set with the pump
on the vehicle. If the condition of the pump is in ques-
tion, or if the pump is to be removed from the vehicle,
gale banks engineering can provide the addresses
and phone numbers of qualified association of diesel
specialists (ads) pump service shops.
nOTe: The engine must be cOLd before starting this
procedure.
nOTe: utmost cleanliness should be exercised. do nOT
use any rags during the adjustment procedure. The lint
from the rag can clog an injector. Lay all parts on clean
newspaper during the adjustment procedure.
Make sure both battery ground cables are dis-
connected. disconnect the wiring from the top
of the fuel injection pump cover. note their location for
reassembly.
Place a drip pan under the rear of the engine
to catch fuel. clean the upper portion of the
pump and guide stud (allen-head bolt at the rear of the
pump) with diesel fuel or a parts cleaning solvent. see
figures 19 and 20. do nOT clean the pump while the
engine is hot, as doing so may damage the pump.
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17 P.n. 96292 V.2.0