Air Filter Restriction Gauge; Intake Manifold - International VT 275 V6 Manual

AIR MANAGEMENT SYSTEM
F F I I L L T T E E R R
R R E E S S T T R R I I C C T T I I O O N N
G G A A U U G G E E
I I N N T T A A K K E E M M A A N N I I F F O O L L D D
I I N N T T A A K K E E M M A A N N I I F F O O L L D D
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E E G G R R V V A A L L V V E E E E G G R R V V A A L L V V E E
International ® VT 275 V6 Engine

Air Filter Restriction Gauge

• The filter restriction gauge is mounted on
the air filter housing. The gauge allows the
operator to check the condition without
removing the filter. The restriction gauge
can be reset by pushing the yellow button
on the end.
• Note: The filter restriction gauge bellows
will lock in position if restriction exceeds
26 inches of water. The filter should be
replaced and the gauge reset.
• The filter element should be replaced if
restriction passes 12.5 inches of H
when tested at high-idle, no-load with a
magnehelic gauge.

Intake Manifold

• The intake manifold directs air from the
charge air cooler to the intake ports in the
cylinder heads. The manifold also provides
an internal passage for exhaust gases from
the EGR cooler to reach the EGR valve.
Exhaust gas will flow into the intake
manifold and mix with the intake charge
when the EGR valve is open and the
exhaust backpressure is higher than the
boost pressure.
• The manifold has an additional internal
passage for coolant from the EGR cooler
to return to the front cover.
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