How can I check whether the fuel supply to the Deutz engine fuel system is working properly?

Check for poor fuel quality, water mixing, or contamination.

Check whether the injector fuse is blown or not.

Check that the fuel pump relay control circuit is operating properly.

When the ignition switch is turned on, the engine control module provides a control power signal for the oil pump relay, so that the oil pump relay is in the ON position, and the electric fuel pump will run for a period of time to establish the oil pressure necessary for the engine to start, if the engine has not yet run after the ignition switch is turned on for a specific period of time, the engine control module will cut off the control power supply of the oil pump relay and make the oil pump stop running; During engine operation, the engine control module receives a pulse signal from the engine crankshaft position sensor to trigger the oil pump relay to turn it on and continuously supply the electric fuel pump with a working voltage. If the various interfaces in the oil pump control circuit are not in good contact, the wire insulation skin is damaged, or the wire in the insulation skin is broken, the fuel pump can not work normally. The testing process of the oil pump relay is as follows:

a.Turn on the ignition, do not start the engine, and listen to the sound of the fuel pump at the mouth of the fuel tank. If the fuel pump can operate, it means that there is no problem with the control circuit of the oil pump, and the B step test should be carried out at this time; If the fuel pump is not working, the pump control circuit is faulty.

At this point, step C testing should be performed.

b.Start the engine and continue to listen to the sound of the fuel pump. If the oil pump does not operate properly when starting, the cause of the fault is that the engine control module cannot receive the signal from the crankshaft position sensor.

At this time, it should be checked whether the output signal of the crankshaft position sensor is normal, and whether the connection circuit between the crankshaft position sensor and the engine control module is normal.

c.Directly supply the battery voltage to the electric fuel pump, if the oil pump can operate normally, step 4 test should be performed; Otherwise, check whether the oil pump itself is faulty, or the lap circuit of the oil pump is broken. You can check the resistance of the fuel pump, and if the resistance is abnormal, replace the fuel pump.

d.The voltage of the battery is directly supplied to the E3 terminal of the oil pump control relay, and if the oil pump can operate normally, the E step test should be carried out; If the oil pump cannot operate normally, it should be checked whether the B7 terminal of the fuel pump control relay has the voltage signal of the battery, whether the B6 terminal has the tie signal, and whether the oil pump relay itself is faulty.

e.Check whether the wires between the C2 terminal of the engine control module and the E3 terminal of the oil pump control relay are connected normally, and repair them if necessary.

Hulway Machinery.

1. The amount of oil return should be more than 8 liters per minute.

The measured oil return pressure should not be less than kilograms.

Otherwise, there is a problem with the low-pressure oil circuit.

Deutz Shandong Maintenance Service Station, Germany.

The third is the emission standard, and the high-pressure common rail is the fuel supply method, which is not the same thing.

Hello, dear here for you to find the relevant information: the oil pressure is generally maintained in the pressure range of 150 350kpa. If the pressure value indicated by the oil pressure gauge is less than 98kpa, the alarm code can be regarded as the oil pressure is too low, and it should be stopped immediately for inspection, otherwise it is easy to cause excessive wear and tear of parts, and even major mechanical failures such as "burning tiles and holding shafts".

The main reasons for the low oil pressure are: 1; It is that the viscosity of the oil is too low. Two:

It is the oil collector filter screen or oil filter element that is clogged. Three: the elastic fluid reduction pants of the spring of the pressure limiting valve and the oil return valve are weak or broken, or the valve joint surface is not tightly sealed, resulting in oil leakage and pressure relief.

Fourth: the clearance of the main bearing or the connecting rod bearing of the mold cover is too large. Five:

Hello dear <>

Deutz engine mountain early oil pressure high ? The reason for the high oil pressure is that the amount of oil pressed into the main oil duct is too much, or the oil circuit behind the main oil duct is blocked. In addition to increasing the load on the oil pump and accelerating its wear, too high oil pressure will also cause oil shortage or oil cut-off on the friction surface of the parts.

In order to find out whether the pressure is too high is caused by the blockage of the oil circuit, you can first check whether there is organic oil at the rocker arm of the valve located higher and farther away, and the possibility of clogging of organic oil is not large; For inorganic oil, the oil circuit should be checked section by section to be eliminated. Other causes of high pressure may be the following: The oil is too viscous.

The pressure limiting valve or pressure regulator spring is too tight or the valve is stuck, so that the oil pump pressure is too high. If the relief valve is not closed tightly or the opening pressure is too low, part of the oil will enter the main oil channel without passing through the filter for a long time, increasing the oil volume of the main oil channel. The spring preload adjustment of the oil return valve is too large or stuck, so that the oil return pressure of the main oil channel is too high or the oil is not returned.

Summary. The 240 hp engine is a four-cylinder turbocharged engine with a maximum power of 240 hp, a maximum torque of 380 Nm, a fuel consumption rate of 100 km, an engine structure of SOHC 16 valves, a cylinder bore of 84 mm, a stroke of 88 mm, and a displacement of 2362 cc.

Hello dear, the oil pressure of 150 200 at idle speed in the hot state is normal, and the oil pressure at high speed 350 550kpa is normal.

Mine is a 240 hp power generator Dachai Deutz.

You're wrong. The 240 hp engine is a four-cylinder turbocharged engine with a maximum power of 240 hp, a maximum torque of 380 Nm, a fuel consumption of 100 km, and an engine structure of SOH 16 valves, a cylinder bore of 84 mm, a stroke of 88 mm, and a displacement of 2362 ml. Demolition of the year.

How is the 6 unloaded engine that is installed in the 4-cylinder Jiefang J6L.

That oil pressure is more or less normal.

I don't understand, I don't understand, I ask others.

The normal oil pressure of the Jiefang J6L engine is generally between psi).

Is it good to be like this in my car now?

No, if the hydraulic beam rise is lower than MPa (180 kpa), it is necessary to check, adjust and replace parts to quickly fix the motor oil pressure problem.

You can inquire about the Deutz Hubei service station, there is a Chen Gong, the professional technology is very strong, we have a Deutz engine in the first half of the year on their maintenance, until now it has been running very well.

There are many reasons for this

1.The oil quality is too poor.

2.The amount of oil is insufficient.

3.The oil pump is too worn out or the bolts are loose and leaking.

4.The lubrication system safety valve is stuck in the open position.

5.The lubrication system safety valve spring is broken.

6.The oil pan lubricating oil primary filter is blocked.

7.The clearance of the front bearing of the crankshaft is too large.

Is the oil pressure too low? When you step on the accelerator, is the oil pressure enough, and the oil lamp will naturally not light up when the oil pressure is enough. In this case, there is a problem with the oil pump.

What's the problem, it's hard to say, I was like this last week, I spent 90 yuan to change an oil pump, and after changing it, the pressure came back immediately!

Why is Weichai Deutz 240 oil pressure low?