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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