Chevrolet Performance 19328839 Manual Del Usuario página 5

There is a one way valve (2) in the camshaft cover in order to prevent the crankcase from being pressurized by positive pressure
in the intake manifold when the turbocharger (5) is in operation. When the turbocharger is operational, the pressure in the intake
manifold can exceed atmospheric pressure which, without the one way valve, would force oil and PCV gases out of the camshaft
cover and into the induction system, via the hose to the camshaft cover. This can cause coking of the throttle body and induction
system, and can reduce the efficiency of both combustion and the intercooler system. In normal operation the PCV gases are
drawn into the air stream post intercooler (6). However, when the turbo is spooled up the turbo can become the vacuum source
for the vent system. PCV (4) mounted in the top of the cam cover and connected to the turbocharger controls the maximum flow
so the crankcase stays at a normal vacuum during normal operating conditions.
Chevy Performance engine completion kit, P/N 19332838 may be purchased to facilitate the installation of the PCV system.
Service PCV hose 12662657, part of kit 19332838, may be purchased separately to complete the PCV installation also.
Power Brake Booster Vacuum Source:
The vacuum port for the Brake Booster is a plug in the rear of the intake manifold. The engine has a vacuum pump that is driven
off the back of the exhaust camshaft. The pump supply port must be plugged or can used to supplement the brake system with a
one way check valve in the system to prevent the vacuum from bleeding off the brake system.
Oil Pressure Sensor:
The oil pressure sensor that comes on the engine should not be removed or modified. It is required to ensure proper control
of the oil pump. Once the engine is warmed up, oil pressure step changes of 15 psi or more may be seen. This is a normal
operating condition and varies with engine speed and engine load.
Fuel Line Pressure Sensor:
This sensor is necessary for operation of the Fuel Pump Power Module. The fuel line Pressure Sensor should be installed as far
away from the engine as practical in the fuel feed line. This will help dampen any fuel pressure spikes from the engine mounted
high pressure fuel pump. Do not use an impact drive to install the sensor. Torque to 15 NM +/- 5 NM. The sensor must be
mounted on an M10x1.0 port with an o'ring seal capable of sealing fuel. The Fuel Line Pressure Sensor must be mounted as
shown:
LTG Crate Engine Controls System
TITLE
ALL INFORMATION WITHIN ABOVE BORDER TO BE PRINTED EXACTLY AS SHOWN ON 8 1/2 x 11
WHITE 16 POUND BOND PAPER. PRINT ON BOTH SIDES, EXCLUDING TEMPLATES.
TO BE UNITIZED IN ACCORDANCE WITH GM SPECIFICATIONS.
5.0" TO 85.0"
ALLOWABLE MOUNTING ORIENTATION IN ANY
DIRECTION RELATIVE TO VERTICAL POSITION
REV 03JA17
5.0" TO 85.0"
19328840
PART NO.
DATE
01DE14 Initial Release - William Duncan
03JA17 Revision - Blake Nye
5
SHEET
REVISION
38
OF
AUTH
N/A
N/A