If it is difficult to start the engine, in order to check whether fuel is supplied to the injectors, unscrew the union nuts on two nozzles and start the engine without preheating until the fuel exits through the union nuts. Tighten the union nuts to 20 Nm and start the engine in the usual way.
Attention: If automatic venting does not occur, proceed as follows:
- Observe the strictest cleanliness when working on the fuel injection system.
- Ensure that diesel fuel does not get into the water hoses. Otherwise, the hoses should be wiped down immediately. Damaged hoses must be replaced.
Depress the clip and disconnect the fuel hose -3- from the fuel pump to the high pressure fuel pump. Wipe up leaking fuel with a cloth.
Insert a suitable hose into the connecting hole, lower the other end of the hose into the vessel.
Remove the fuel pump relay and bridge the terminals on the relay base to start the pump.
If fuel flows out of the connector, remove the jumper and insert the relay.
Reconnect the fuel hose after coating the gaskets with acid-free grease. Replace damaged gaskets. Snap on the bracket.
Loosen the plug -1- on the injection pump by two turns.
Crank the engine with the starter until fuel exits through the plug. Wipe up escaping fuel.
Screw on the plug with a tightening torque of 25 Nm.
Loosen the screws and remove the covers from the intake manifold.
Loosen all the union nuts of the injection pipes on the injectors using a special tool, eg HAZET 4550. Turn the engine over with the starter until fuel comes out. Then tighten the nuts with a tightening torque of 20 Nm. In the event of leaks, tighten the union nuts to a tightening torque of 25 Nm.
Thoroughly wipe up spilled fuel in the engine compartment.
Install the pad in place.