Decide how many devices have to be used
according to the engine type. Look at the following chart for
guidance:
Number of devices according to the engine
capacity.
GAS ENGINES
DIESEL
ENGINES
Up to 2.5 liters
1 unit
Up to 3 liters
2 units
Larger than 2.5 liters
2 units
3 to 8 liters
1 at the front of the injection
bomb and 1 per cylinder. The installation procedure
differs according to the type of pump: mechanical or
computerized.
Larger than 7 liters
3 units
Gas Engines:
The devices are fit at the the carburator inlet, at
the fuel distribution pipe inlet that feeds the injectors
(mulit-injection) or at the fuel inlet pipe that feeds the
engine (mono-injection). Always behind the gas filter.
Diesel Engines:
1) Cars: as a rule, two devices are installed at
the injection pump inlet, behind the diesel filter.
2) Trucks, buses, etc: In this case engines are
divided into:
a) Cars: as a rule, two devices are installed at
the injection pump inlet, behind the diesel filter.
b) Trucks, buses, etc: In this case, engines are
divided into:
I) computerized injection pump: In this case, the devices
are installed at the inlet of the manifold that
distributes fuel into the injectors or, if there is enough
room, at the inlet of each injector.
II) Mechanical injection pump: One device is installed at
the injection pump inlet and the others on each injection
intake line, at least one device per cylinder + one.
Install 7 devices in a 6 cylinder engine.
In some cases, when the engine works with an excess of
fuel, it is advisable to lower the pump flow by 10%. This
is the case when the economy is poor after a month has
elapsed.