Volvo Penta D2-55, Workshop Manual

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Group 23 Fuel system
1
2
D2-55 A, B
Priming the fuel system
The fuel system must be primed after a filter change,
if the fuel tank has been run dry and after a long-term
stoppage.
D2-55A/B:
1. Open the priming screw (1) on the fuel filter. Avoid
fuel spillage. Use i. e. rags on the priming point.
2. Pump fuel up with the hand pump (2) until fuel
without air bubbles can be seen. Continue pumping
and tighten the priming screw at the same time.
Note. If the pump works poorly, crank the engine so
that the mark on the pulley is at “TOP” if it is still
poor, crank the engine another revolution to “TOP”.
3. Normally, additional priming is not required. Start
the engine and check that no leakage occurs.
4. If the engine does not start after a short attempt,
loosen the pressure pipes at the injectors a few
turns. Hold the injection pump actuator arm in it’s
max. position and crank the engine with the start-
er motor until fuel leaks from the pressure pipes.
Tighten the pressure pipe nuts. Tightening torque,
please refer to the “Technical Data” chapter.
The glow plugs are activated at the same time as the
starter motor. You can save the batteries if the starter
motor is only used for short periods when priming.