The Haima S5 engine is loud, is it related to the oil?

When diagnosing excessive engine noise, the first step is to rule out the noise caused by accessories, such as those generated by air compressors and power take-offs, and do not mistake these noises for engine noise. Remove the accessory drive belt to exclude noise caused by these units. Noise can also spread to metal parts that would otherwise be fine.

Therefore, the use of a stethoscope will help to determine the location of engine noise. If the noise varies with the speed of the crankshaft (engine speed), the noise may be related to the crankshaft, connecting rods, pistons, and piston pins. If the noise heard varies with the camshaft speed (half speed of the engine), the noise may be related to the valve transmission components.

A hand-held digital tachometer can help determine if the noise is related to a component running at the speed of a crankshaft or camshaft. Engine noise can sometimes be isolated by removing the plunger of one injector at a time. If the noise volume decreases or disappears, then that noise is related to that particular engine cylinder where it is located.

There is no set rule or test method for determining noise. Engine-driven components and accessories, such as gear-driven fan clutches, hydraulic pumps, belt-driven chargers, air conditioning compressors, and superchargers, can contribute to engine noise. The following information can be used to guide the diagnosis of engine noise:

Main Bearing Noise The knocking noise caused by the loose main bearing can be heard when the engine is under load, and its sound is loud and dull. If all the main bearings are loose, a loud, short knocking sound will be heard. This percussion sound is regular and varies with the rotational speed.

This noise is loudest when the engine is dragging or driving under heavy loads, and this knocking sound is druffier than the noise produced by the connecting rod. Low oil pressure will also accompany this. If the bearing is not loose enough to produce a knocking sound on its own, if the oil is too thin or if there is no oil on the bearing, the bearing will produce a knocking noise.

An irregular noise may indicate crankshaft thrust bearing wear. Intermittent sharp tapping is an indication that the crankshaft clearance is excessive. Repetitive clutch action may cause a change in this noise.

Connecting Rod Bearing Noise Excessive linkage clearance can cause knocking noise at various engine speeds, i.e. idle and load conditions. When bearings begin to become loose, this noise can be confused with the sound of a piston slapping or the noise of a loose piston pin. The volume of noise increases with the speed of the engine.

Low oil pressure will also accompany this. Piston Noise The most difficult part is to point out the difference between piston pins, connecting rods, and piston noise. A double-click sound caused by a loose piston can usually be heard when the engine is idling.

When the injectors of this cylinder are removed, the sound of this knock will change significantly. However, on some engines, this knocking sound becomes more pronounced instead when the vehicle is driving on the road at a steady speed.

Hello, it has a certain relationship with engine oil.

Hello dear! It can only be said that there is a certain relationship! I hope it can help you, please set it as! Thank you!

For the Haima S5, you can choose the Dan synthetic engine oil provided by the original factory, or you can choose the full synthetic engine oil of the Great Wall brand, which depends on your own personal needs.

Haima S5 This car is recommended to use the original engine oil, the original engine oil is very good, the original engine oil is more matched, you can refer to it.

Haima S5 This car recommends you Mobil, Castrol, Shell engine oil can be, 5W-30 label can be.

Hello, it is recommended that you use semi-synthetic and above engine oil with a viscosity of 5w-40, and the current mainstream engine oil brands are: Mobil, Castrol, Shell, Dusso lubricants.

If it is a naturally aspirated engine, ordinary mineral oil will do, and if it is a turbine engine, it is better to use synthetic oil.

Hello, you can choose SN-5W-30 semi-synthetic engine oil, generally about 300 yuan, brand Mobil, Shell, Total.

This car uses semi-synthetic engine oil, original. Big brands Mobil, Castrol, Shell are all good.

Hello, this car can be replaced with minerals, and of course it can also be replaced with a higher grade of oil.

Hello, for this model, it is generally recommended to choose the original engine oil, there is no need to deliberately change to a better one.

It is recommended to use Castrol Magnetic 5w30 engine oil, which is good for the engine and can be serviced once every 7500 kilometers.

It is okay to use semi-synthetic engine oil or fully synthetic engine oil normally, and fully synthetic engine oil may be more expensive.

For turbocharged engines, it is best to use fully synthetic engine oil, so as to better protect the engine.

For this car, it is recommended that you use a fully synthetic motor oil, such as Mobil Shell, which is good, and it is recommended that you consult a local professional repair shop for specific conditions.

Summary. In response to this problem, it may be because the high-end engine has been replaced, and the exhaust system has not been modified, resulting in a loud engine. To solve this problem, the first thing to do is to check the exhaust system to see if there are any loopholes, and if there are loopholes, you can use hot melt adhesive to plug the loopholes to reduce the engine sound.

Secondly, check the exhaust pipe for damage, and if there is damage, you can replace it with a new one to reduce the engine sound. Finally, check the engine itself to see if there is any damage, and if there is damage, you can replace it with a new one to reduce the engine sound. In short, in order to solve the problem of Haima S5 low-gear high-end engine with a lot of noise, we must first check the exhaust system to see if there are any loopholes, if there are loopholes, you can use hot melt adhesive to plug the loopholes; Secondly, check whether the exhaust pipe is damaged, if there is damage, you can replace the new exhaust pipe; Finally, inspect the engine itself to see if there is any damage, and if there is damage, you can replace it with a new one.

In response to this problem, it may be because the high-end engine has been replaced, and the exhaust system has not been modified, resulting in a loud engine. To solve this problem, the first thing to do is to check the exhaust system to see if there are any loopholes, and if there are loopholes, you can use hot melt adhesive to plug the loopholes to reduce the engine sound. Secondly, check the exhaust pipe for damage, and if there is damage, you can replace it with a new one to reduce the engine sound.

Finally, check the engine itself to see if there is any damage to the lease, and if there is damage, you can replace it with a new one to reduce the engine sound. In short, to solve the problem of Haima S5 low-grade to high-end engine with a lot of noise, first check the exhaust system to see if there are loopholes, if there are loopholes, you can use hot melt adhesive to plug the loopholes; Secondly, check whether the exhaust pipe is damaged, if there is damage, you can replace the new exhaust pipe; Finally, the engine itself should be inspected to see if there is any damage, and if there is damage, you can replace it with a new one.

Fellow, I really didn't understand, I can be more specific.

In response to this problem, it may be that after changing the high-end engine, the exhaust system has not been modified accordingly, resulting in an increase in the exhaust volume of the slag engine and a louder sound. In addition, after changing to a high-end engine, the performance of the engine will also be improved, and the engine speed will be higher when accelerating, which will also cause the engine to become louder. In addition, if the exhaust system of the engine is not modified accordingly after changing to a high-end engine, this will also lead to an increase in the exhaust volume of the engine, which will make the engine louder.

In addition, if the exhaust system of the engine is not done well, the exhaust volume of the engine will also be affected, which will affect the sexual deficit of the engine, and will also cause the engine to become louder. Therefore, if the engine becomes louder after changing the high-end engine, then you should check whether the exhaust system of the engine has been modified accordingly, and if not, it should be modified as soon as possible to ensure the performance and sound of the engine.

It is advisable to check the muffler and the exhaust pipe for damage. In severe cases, change the oil, filter, and wash the engine.

Check the oil, the reduced lubrication effect may cause the engine to be loud.

The reasons why the throttle is loud are:1. The engine overheats and causes the vehicle to lose power;

2. The internal valve of the engine is blocked;

3. Exhaust pipe leakage is noisy;

4. a dirty throttle plug;

5. The engine lacks cylinders;

6. Lack of power steering oil;

7. The generator bearing is damaged;

8. There is a problem with the power steering pump and water pump. Throttle, also known as damper and throttle, refers to the control spine device that controls the power of the engine, which is controlled by the driver in the cockpit and transmitted to the carburetor or fuel regulator on the engine through the control system components.

The role of the throttle is:

1. The speed of the engine can be controlled by controlling the amount of pedaling;

2. Control the vaporizer to determine the output of the engine.