Troubleshooting on Diesel engines

Problem: Engine Will Not Start Possible causes:

Fuel is not reaching the engine.

 

 

Solution:Check the fuel tank, fuel lines to the transfer pump, injection pump tubes, fuel filters, water decanters

(Connect a fuel container directly to the input of the injection pump to see if the engine starts, follow colectándolo in pipes to the fuel tank to find the point where the problem is.

Faulty transfer pump.

Solution:The fuel transfer pump pressure should be given when the engine starts between 0.7 and 1.4 Kg/cm2. A full charge will give approx. 1.76 Kg/cm2 and high idle about 2.11 Kg/cm2. Check the pressure, if this change is low transfer pump.

Engine out.

Solution:Drive sprocket loose injection pump. Motor off point. Commission the motor.

Faulty injection pump.
 
 Turbo Diesel Engine
 Solution:Check all of the above and verify that fuel reaches the injectors. If everything is correct injection pump repair and replace the injectors.

 

Problem: Engine malfunctionPossible causes:Failure injectors

Solution:Rev the engine to the point where failure is best appreciated. Loosen the injectors one at a time, finds that the engine failure, until you find one that does not appreciate loosen change in the ruling. Replace the faulty injector.

Diesel vehicles

WARNING: We have considered only the most common engine faults.

Engine will not start when cold.
 
 Car Makes
 1. - Battery discharged or bad.
2. - Battery terminals loose or dirty.
3. - Failure of the starter, or contact your defective circuit.
4. - Thermo-resistor burned preheating, defective, or
Disconnected.
5. - Time relay thermal resistance of the defective.
6. - Engine lubricating oil too thick.
7. - Air injection circuits, or power injector pump.
8. - Injectors dirty or defective uncalibrated.
9. - Air intake duct obstructed.
10. - Feed pump injection pump, damaged.
11. - Low compression engine.
12. - Injection pump inoperative, uncalibrated or poorly timed.
13. - Command interrupted acceleration.
14. - Locked stop command.
15. - Obstructions in the conduit between the fuel tank and feed pump.
16. - No fuel in the tank.
17. - Holes plugged air pressure input to the reservoir.

Engine starts, but stops immediately.
In addition to the diagnostics 7, 8, 9, 10, 12, 13, 14, 15, 16 and 22,
18. - Some of the clogged nozzles.
19. - Return duct obstructed surplus fuel.
20. - Exhaust duct obstructed.

Bad combustion engine.
In addition to the diagnostics 7, 8, 9, 10, 11, 12, 15, and 17,
21. - Valve springs either expired or broken.
22. - Lead angle injection pump inaccurate.
23. - Motor overheating.
24. - Incorrect clearance between tappet and valve stems.

Loss of engine power.
In addition to the diagnostics 7, 8, 9, 10, 11, 12, 13, 15, and 17,
25. - Low engine temperature.
26. - Throttle control cable relaxed or loose.
27. - Fuel storage last for long.
28. - Relationship between injection and acceleration defective.

Excessive fuel (white smoke in the exhaust)
In addition to the diagnostics 7, 8, 9, 10, 11, 12, 15, 17, 18, and 19,
29. - Leaking fuel lines and connections.
30 - Step fuel to the engine oil reservoir.

Excessive oil (black smoke in the exhaust)
In addition to the diagnostics 9, 11, 20, 22, 23, 25, and 30,
31. - Excessive oil or inadequate density.

 

Types of Motor Oil: Oils Best Cars
Car oil or engine oil is one of the many products of crude oil refining.

This lubricating oil can be classified according to the different weights that has, besides being subjected to a chemical process with additives that can withstand the high temperature and corrosion that is in the area of ​​the motors.

 

One of the characteristics of the oil is not "wearing", although many of its components reach additives if consumed when subjected to harmful chemicals and conditions that occur in the motor. Therefore, the oil change eliminates the pollutants that are suspended and bring a new supply of additives.

 

Also, the more degrees you have the oil, the higher the viscosity or stickiness. The difference with the multigrade oil is due to the chemical composition it has, to accommodate heat-reactive substances and make the oil to increase its thickness.

 

Thus, the benefits to the engine oil, it serves to lubricate the internal engine parts that are in constant motion, either rotationally or rubbing. Failure to lubricate the engine parts are heat up and melt each other.

 

On the other hand, are on the market various types of brands at different prices, which can be found according to the viscosity and can find SAE 20W, SAE 30W, SAE 40W, SAE 50W, among others, and multigrade oils, as SAE 5W 30, 10W SAE 40 and SAE 20W 50.

Thus, the motor is classified by letters, which indicate the destination of use. In the case of gasoline engines, that ignite spark exist SA to SF oils, and for diesel engines or oil, which light compression, there are oils CA to CD.

 

The oils most recommended are SE, SF, CC and CD. Similarly, the letter "W" means that the oil viscosity is required at a temperature of 17.8 degrees Celsius. 5W and 10W oils are thin and are recommended for cold climates.

 

20W oil viscosity is intermediate, being recommended for temperate climates, also using oils 30W, 40W and 50W can go long routes, and these ideal for warm climates.

 

Functions in the motor oil

The oil performs several functions within the engine: a fluid which serves to lubricate the metal parts of the engine, reduces friction in the moving parts and thus prevents wear. When an engine is well lubricated reduces fuel consumption and increases power.

 

Oil should be changed every few minutes, because it loses its properties and becomes contaminated with use, every car is different and there is a suitable oil for better performance.

According the fuel you use your car, there are oils for diesel engines or gasoline engines. We could say that oil is the lifeblood of our car. 
 Pictures of cars and girls tuning Here I give you some facts you should know about the oil you use your car, it's important to know what role plays inside the engine, how it does it and how often the oil should be changed and why.

 

The main functions of the oil are:

1. Lubricate by forming a film between the moving parts decreasing friction, preventing wear of the parts

2. Cool the motor removing the heat of the pistons

3. Sealing the space between the piston rings and to maintain compression

4. Clean coal refuse disposal engine that can be formed inside it.

 

Replacing brake fluidObjective:
Check and replace brake fluid according to the manufacturer's recommendations.

 

Security Check:
To clean a braking system or its components never use any product or mineral based oil, such as gasoline, kerosene, etc.

 

These products are not compatible and if used can cause failure of the brake system and its components, and therefore passengers injury and / or damage to the vehicle.

If brake fluid is splashed into the eyes, flush eyes with tap water immediately. Do not swallow brake fluid. It is toxic.

 

Ensure that when you purge the brakes, non-container empties into brake fluid because otherwise it will cause damage to the master cylinder.

 

Make sure that you understand and observe all safety procedures and legislative staff when carrying out the following tasks. If you do not know what these are or in doubt, ask your supervisor.

 

Points to consider:
Brake fluid may damage the vehicle's paint softening the primer.
Brake fluid has a gyroscopic nature quickly absorb moisture.

As the moisture is absorbed, the boiling point is lowered. This can cause the phenomenon known as "brake fade".

 

Always recap the brake fluid container as soon as possible.

Do not use brake fluid that has been left in an open container.

The brake fluid types are identified by their DOT number. the transportation department. The higher the number, the higher the boiling point.

 

Most vehicles use DOT 3 or 4. These liquids are both based on glycol but differ in specifications. The cover will usually state the type of fluid to be used.

 

A synthetic fluid DOT 5 transportation and commonly known as brake fluid with "silicone" is usually colored purple for easy identification and is not recommended for use in vehicles with ABS.

 

Do not mix brake fluid DOT 5 with a DOT 3 or 4 glycol based. They are incompatible.

Most braking systems today use a combination of different metals. Manufacturers use pistons and aluminum cover, and steel used for some of the cylinders of wheels and brake lines.
 
 How to change your car's brake fluid
 If moisture is mixed with the brake fluid galvanic action occurs. A galvanic action is similar to the operation of a battery. The more moisture is in the brake fluid, the higher the reading and galvanic corrosion greater cause.

 

If you need to bleed the brake system, is likely to have to change the brake fluid.

When bleeding brakes will need to be filled to the maximum fluid container after serving each station brakes.

Most manufacturers recommend that the brake fluid is changed at least every two years.

Consult the owner's manual for the specified intervals for the model in which we are working and the type of brake fluid used.

 

There are a number of different methods of brake fluid bled. Some repair shops use a system of "pressure bleeder", while others may have a system of "vacuum brake bleeder." The manual procedure bleeding is used in this procedure.

 

Manufacturers recommend that when bleeding the brakes, push the brake pedal all the way, if you are changing the brake fluid in an older vehicle, or if you are uncertain vehicle history, it is wise to depress the pedal brake through the normal range of movement.

This procedure prevents the components in the master cylinder into contact with contaminants.

Assemblies of disc or drum brakes, are often referred to as brake stations.