Volvo Penta TAMD162C, Instruction Book

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Hand pump (3)
The feed pump’s hand pump can be used on a stopped
engine to pump fuel to the filters and injection pump
when venting the fuel system, for example after replac-
ing the fuel filters.
Smoke limiter (4)
The injection pump has a pressure-dependent full load
stop (smoke limiter) which is located at the front of the
pump. Its job is to reduce sooty exhaust gases during
hard acceleration from low speeds when the flow of ex-
haust gases through the turbocharger is too small to
provide the full amount of air to amounts of fuel injected
by the injection pump. The smoke limiter is connected
to the inlet manifold via a plastic tube.
Injection pump (1)
The injection pump is located on the right side of the en-
gine and is driven by the timing gears. The pump, which
is of piston type, has a centrifugal governor.* This gov-
ernor regulates the fuel feed to the engine so that the
speed set by the driver using the control is achieved. It
also limits the engine’s max. speed if the load should
suddenly drop.
* Note: Auxiliary engines are fitted with an electronic governor.
Feeder pump (2)
If the injection pump is to work, it requires a supply of
fuel at pressure. This is provided by the feed pump,
which is of piston type. The feed pump is located on the
injection pump and is driven by the injection pump’s
camshaft.
The feed pressure is determined by an overflow valve
located on the injection pump. This valve both limits the
feed pump pressure and ensures continuous venting of
the fuel system.