Intake System; Intake Manifold Lower Section - Volvo B5254T3 Manual

I NTAKE SYSTEM
I ntake Manifold Lower Section
•
The intake system is divided into upper and lower sections.
•
The intake system has a total volume of 5.3 liters with tuned lengths of pipe.
-
The injectors are located on the lower manifold so the fuel mixes with the turbulent air as
efficiently as possible.
•
The position of the injectors is optimized to minimize fuel film formation and improve emissions.
-
The lower intake manifold is aluminum to protect the fuel injection nozzles in the event of an
accident.
• There are individual ducts to each intake port to distribute the crankcase gases evenly between the
cylinders.
•
To better control the exact volume of crankcase gases used in combustion, the gasket between the
l ower intake manifold and the cylinder head has calibrated holes for the crankcase gases.
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