Oil problems in diesel car motors

Diagnosis and examination of engine failures:

There are two types of mechanical maintenance technicians: one that opens the engine and replaces its parts according to its own estimates until the damaged or idle part is detected after the loss of time and many costs. And another uses intelligence and tries to get some facts about the engine and examines it until he diagnoses the malfunction and then begins to replace these damaged parts so the examination and diagnosis is the only and correct way that the repairer should use when repairing the engines

Seven key steps in engine repair:

· Know the system and order of the engine:

You study the engine's technical manual to find out how the engine is operated and how it fails.
The three main things required are air and fuel, compression with diesel engines, or ignition with gasoline engines……. Therefore, these technical manuals on the engine must be read and kept in a suitable place where it is expected that there will be a solution to some of the problems you face present in these manuals as it is possible to prepare for any problem after knowing the engine.

Ask the engine operator:
The good and complete report on engine problems comes from the engine operator where he can tell you how the engine performed, what kind of work he was doing when the malfunction occurred and what is unusual about the engine, what kind of work he was doing when the malfunction occurred and whether the problems are permanent or strange.
What did the operator do after the engine failed and did he try to fix it himself?
He asks how to use the engine and when it is finally repaired, so you must get the full truth from the operator.

Engine inspection:
By examining the engine and inspecting all the recorded objects and using the eye, ears and nose to observe any signal that guides you to the problem:

The second is inspected:
1 water leaks.
2 oil leaks.
3 fuel leaks.
4 Ignition problems.
5 Electrical problems.
6 insulation problems.
7 signs of other problems.
· Engine operation:

If the engine can be rotated and turned on until heated then it runs at normal speed. After the engine is turned on, the following can be concluded.
Hear strange sounds to locate them and at any speed.
Smell any smell, any abnormal sign of exhaust smoke.

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How engine control devices work.
How's the engine's capacity under load?
Is the speed of the engine slowing down intact?
Use the general sensation to see how the engine ignites.

List of possible causes:
What symptoms did you detect when checking and operating the engine?
Is there a loss of power (engine)?
Does the engine when running become too hot or too cold?
How's the oil pressure?

Access to conclusion:

Note the list of possible causes and decide which is more likely to happen than others and which is easier to correct. He reached a decision to determine the causes and a plan to examine these parts first after the easy tests.

* Horsepower in the engine is three basic things to produce horsepower-
—-2 Compression.
3 Ignition.

Air supply is essential for engine combustion, so the air area and air withdrawal system must be maintained. There has to be good fuel processing, so the fuel tank, pipes, refineries and pump must be disabled.

Compression:

It should be suitable inside the cylinder and weak compression can be caused by damaged valves, leakage in the filling of the cylinder cover or leakage of gases through pistons.
In diesel engines, compression is more important because it's the heat generated by the compression of the air that burns fuel instead of the electric spark.

Burning:

It must be appropriate and its timing is correct through the injection pump.
If the three things are fuel + air, compression and ignition do not function in a regular succession, the engine's capacity will be low.

Mechanical problems:

Behind the engine efficiency problem are several mechanical things that can lead to engine failure:
Lax suspenders:

It can cause increased oil consumption, noise generation, resulting in the failure of porters and damage to the attachment column.
Led consumer guide:
Consequently, valve failure can cause an increase in oil consumption.
Cam column lobes:
Loss of power by delaying the opening of the valve and closing the valve very early.
Pistons and consuming rings:
It causes an increase in oil consumption and causes loss of compression and capacity.

Breakdowns and repairs:

Difficulty igniting or not igniting the engine:
1 The lack of fuel or fuel is inappropriate.
2 water, dirt in fuel or dirty refineries. Examines fuel processing and cleans refineries.
3 air in the fuel system.
Get rid of the air in the system.
4 Decrease the rotation speed of the attachment column.
Repair or detection of an engine that has begun to move.
5 Time lost.
By examining the timing of the injection pump.
6 times the work of the injector.
Cleaning, repairing, changing or switching.

Fuel problems:

In diesel engines, fuel is ignited by heat caused by compression and the degree of fuel loss. Affects the portability of the engine starting to ignite.
In general, the volatility of diesel fuel is low, so the degree of criticism is high, which means that when the quality of fuel is low, the heat generated in the engine must be very hot, which leads to difficulty starting the engine.

Slow rotation of the facility caused by weak battery or damage, the engine starting movement can not rotate at the speed required to generate sufficient heat in the cylinder until the fuel or air charge is not sufficient to rotate the engine.

Weak work of syringes:

The syringe should be in good condition, but if the spray openings are blocked or the pressure becomes low, the most fuel will pop up in liquid form, causing the engine to be difficult to operate.

The engine spins but does not continue its rotation:

Fuel problems.
Inspection of the fuel system. Check fuel pipeline obstructions and clean refineries.

3 Engine failure:

Air in the fuel system.
Weak syringe work
The injection pump needs to be changed.
The syringe does not sit properly in the head of the cylinder cover.

4 Bang engine:

Different timing of injection pump.
Consumption of suspenders and metal cavities in the engine.
Increase free movement in the final column of the facility.
The softness of the strap cover.
Strange objects in the cylinder.
The engine bang is divided into two types:
1 Mechanical interference between the parts where by hitting one part and another by hitting one part by the looseness of the parts or loads consumed or the softness of the nails and controlling bodies in the engine.
2 The timing of the change is not suitable such as fuel, fuel loss or injection timing is not good.

5 Very hot engine:

Damage to the heat regulator.
Clogged cooling vents (in the trumpet).
Decrease in cooling water.
Double the salt water pump.
Leaking in cooling water.
Overload on the engine.
The timing of the injection pump is incorrect.
Low oil pressure.
Clogged cooling holes in the engine.

6 Reduced capacity:

Malfunction in the cloud system.
The interface of the valve's nail finger is incorrect (clearance).
Tank oil is too heavy.
Low compression.
The timing of the engine is incorrect.

7 The engine consumes oil a lot:

The oil is light.
Rings and pistons are consumed.
Consumption of valve manual or oil leakage blocker for valve distance.
The softness of the porters.
Internal oil leak.
The oil pressure is very high.
The oil return corridor from the cylinder cover is blocked.

8 Very low oil pressure:

Consumption of suspenders.
Light oil.
The oil pump is consumed.
Engine oil is little.
Softness of connections or leakage in oil contraindications.