Fuel Filters; Injection Pump - Volvo Penta TAMD71B Instruction Manual

9.1 Fuel filters

The fuel system has two fine fuel filters connect-
ed in parallel have the same cover. These filters
are disposable, and the filter insert is made of a
spirally wound paper filter. The inserts can be re-
placed while the engine is running if necessary.
A single or double (connected in parallel) water-
separating pre-filter is also available as an ac-
cessory. The inserts of the double pre-filter can
be replaced while the engine is running if neces-
sary.
It is important to replace the fuel filters according
to the maintenance schedule. Clogged filters
make the engine difficult to start and reduce en-
gine performance.

9.2 Injection pump

The injection pump is of the piston type and lo-
cated on the left of the engine. It is driven by the
timing gears.
The pump is equipped with an electronic gover-
nor. The governor controls both fuel supply to
the engine to maintain the engine speed set at
the throttle control and also limits the engines
maximum speed if the load at high throttle open-
ings suddenly should reduce.
38 AB Volvo Penta / Diesel Engine TAMD71B
Fig. 9.3 Fine fuel filters, switchable
Fig. 9.4 Extra pre-filter (single)