103
4 DLT ENGINE
The inlet manifold also has a precisely machined hole
through which the exhaust gases are fed into the
engine. The manifold has a provision to mount the
EGR valve onto it so as to match the hole in the valve
to the hole on the inlet manifold.
Note :
Ensure exhaust system and catalytic converter (if
fitted) are not blocked and are free from obstruction.
l
Blockages in the exhaust can create back
pressure low top speed, poor pick up, black
smoke, carbon build up and low mileage.
EGR valve and EGR tube to be assembled
as per following instructions :
1.
Handtighten EGR tube flange to Exhaust
Manifold with respective fasteners.
2.
Locate EGR tube and clamp on EGR valve.
3.
Assemble EGR valve on Inlet Manifold and
tighten it with respective fasteners.
Vacuum Hose
from
Solenoid Valve
EGR Valve
EGR Tube
Inlet Manifold
Exhaust Manifold
Check and ensure EGR Valve & Control System is
Clean and functioning properly.
l
Check correct setting of potentiometer on FIP
l
Excessive carbon buildup / sticky valve.
l
Damaged Vacuum lines.
All these can keep the ‘EGR’ open when not desired
and vice versa. Either way these can seriously affect
power output of the engine and also the emission
levels.
4.
Tighten clamp connecting EGR valve and tube.
5.
Tighten EGR tube flange to Exhaust Manifold
with respective fasteners.
6.
Removal of EGR valve & EGR tube.
7.
Follow the reverse sequence of assembly.
Fig. 192 Schematic diagram of EGR circuit on Safari Euro - III Engine
Clamp




