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 AIR INLET AND EXHAUST SYSTEM
SYSTEMS OPERATION
AFTERCOOLER
The aftercooler is located at the center of the
vee, and has a coolant charged core assembly. The
3516 can have two core assemblies. Coolant from water
pump (3) flows through pipe (2) into the aftercooler. It
then flows through the core assembly (assemblies) and
back out of the aftercooler through a different pipe into
the rear of the cylinder block.
There is a connector (tube) that connects the
bottom rear of each core assembly to the cylinder block.
This is used to drain the core assembly (assemblies)
when the coolant is drained from the engine.
Inlet air from the compressor side of the turbo-
chargers flows into the aftercooler through pipes. This
air then passes through the fins of the core assembly
(assemblies) which lowers the temperature. The cooler
air goes out the bottom of the after-cooler into the air
chamber, and then up through the elbows to the inlet
RIGHT FRONT OF ENGINE
ports (passages) in the cylinder heads.
2. Pipe. 3. Water pump.
AFTERCOOLER AIR CHAMBER DRAIN
4. Drain plug.
One drain plug is located between the No. 1 and
No. 3 cylinder heads, and another plug is located
between the last two cylinder heads on the left side of the
TOP OF ENGINE
engine. These plugs can be removed to check for water
1. Aftercooler housing.
or coolant in the aftercooler air chamber.
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