1. Afraid of "crossing"
Various parts in the diesel engine fuel system, the main and driven gears in the main reducer of the drive axle, the hydraulic control valve block and valve stem, the valve core and valve sleeve in the fully hydraulic steering gear, these matching parts are After special processing and grinding in pairs, the fit is very precise. They should always be used in pairs during their service life and must not be interchanged. Some mating parts, such as piston and cylinder liner, bearing bush and journal, valve and valve seat, connecting rod head cover and rod body, after a period of running-in, the fit is relatively good. During maintenance, attention should also be paid to Assemble in pairs and do not visit each other.
2. Second, fear of [rebellion"
The cylinder gasket of a Petrol Car engine cannot be installed backwards during installation, otherwise it will cause premature ablation and damage to the cylinder gasket; some special-shaped piston rings cannot be installed backwards and should be assembled according to the requirements of different models; the fan blades of Petrol Car engines There are also direction requirements during installation. Fans are generally divided into two types: exhaust and suction. They cannot be reversed, otherwise it will cause poor heat dissipation and excessive temperature of the gasoline engine. For tires with directional patterns, such as herringbone pattern tires, after installation The ground impression should be such that the tip of the chevron points toward the rear to ensure maximum driving force. Different models have different requirements for the two tires installed side by side, and they cannot be installed at will.
3. Three fears of "oil"
The paper filter element of the dry air filter for Petrol Car engines has strong hygroscopicity. If it is stained with oil, it is easy for the mixture with a higher concentration to be sucked into the cylinder, resulting in insufficient air volume, increased fuel consumption, and reduced power of the Toyota Car engine. , the diesel engine may also cause "speeding"; if the triangular tape is stained with oil, it will accelerate corrosion and aging, and it will easily slip, resulting in reduced transmission efficiency; brake shoes, dry clutch friction plates, brake bands, etc. If it is stained with oil, it is easy to slip and work poorly, thus threatening driving safety; oil stains on the starter motor and generator carbon brushes will cause insufficient power of the starter motor and low voltage of the generator due to poor contact. Tire rubber is very sensitive to corrosion by oil. Contact with oil will cause the rubber to soften or peel. Short-term contact can cause abnormal damage or even serious damage to the tire.
4. Four fears of "washing"
Some people who are new to driving or repairing may think that all Toyota Car parts need to be cleaned. In fact, this understanding is one-sided. For the paper air filter element of Toyota Car engine, when removing the dust on it, you cannot use any oil to clean it. You only need to gently tap it with your hands or blow high-pressure air from the inside of the filter element to the outside; for leather parts, It is also not advisable to use oil for cleaning, just wipe it clean with a clean rag.
5. Five fears of [pressure"
If the tire casing is stored under pressure for a long time and is not turned over in time, it will be deformed due to extrusion, which will affect its service life; the paper filter elements of the air filter and fuel filter will be greatly deformed if extruded. It cannot reliably perform the filtering function; rubber oil seals, triangular tapes, oil pipes, etc. cannot be squeezed, otherwise they will also deform and affect normal use.
6. Six fears of [repetition"
Some parts should be used once, but individual drivers or repairmen reuse them in order to save or because they do not understand the "taboos". This can easily lead to accidents. Generally speaking, Toyota Car engine connecting rod bolts and nuts, imported diesel engine injector fixing bolts, cylinder liner water blocking rings, sealing copper pads, various oil seals and sealing rings of the hydraulic system, and pins and cotter pins in important parts, etc. After the parts are disassembled, they must be replaced with new ones; for Toyota Car engine cylinder gaskets, although no damage is found during maintenance, it is best to replace them with new ones, because old ones have poor elasticity, poor sealing, and are prone to ablation damage and need to be replaced after a short period of use. It is time-consuming and labor-intensive, so it is better to replace it if there is a new one.
You must know that it is becoming a global trend for Petrol Car parts manufacturers to separate from vehicle companies and form specialized Toyota Car parts groups. Almost all of the internationally renowned Toyota Car and parts companies have established joint ventures or wholly-owned enterprises in China, and more than 1,000 joint ventures have introduced technology. A number of domestic Toyota Car and parts companies with high technological content, good efficiency, and large scale are gradually becoming more and more popular. As the international Toyota Car industry begins to implement the "global procurement" strategy for parts and components and international multinational Petrol Car companies implement localization strategies, there will be a huge gap in parts and accessories in the domestic market.
The cylinder gasket of a Petrol Car engine cannot be installed backwards during installation, otherwise it will cause premature ablation and damage to the cylinder gasket; some special-shaped piston rings cannot be installed backwards and should be assembled according to the requirements of different models; the fan blades of Petrol Car engines There are also direction requirements during installation. Fans are generally divided into two types: exhaust and suction. They cannot be reversed, otherwise it will cause poor heat dissipation and excessive temperature of the gasoline engine. For tires with directional patterns, such as herringbone pattern tires, after installation The ground impression should be such that the tip of the chevron points toward the rear to ensure maximum driving force. Different models have different requirements for the two tires installed side by side, and they cannot be installed at will.
3. Three fears of "oil"
The paper filter element of the dry air filter for Petrol Car engines has strong hygroscopicity. If it is stained with oil, it is easy for the mixture with a higher concentration to be sucked into the cylinder, resulting in insufficient air volume, increased fuel consumption, and reduced power of the Toyota Car engine. , the diesel engine may also cause "speeding"; if the triangular tape is stained with oil, it will accelerate corrosion and aging, and it will easily slip, resulting in reduced transmission efficiency; brake shoes, dry clutch friction plates, brake bands, etc. If it is stained with oil, it is easy to slip and work poorly, thus threatening driving safety; oil stains on the starter motor and generator carbon brushes will cause insufficient power of the starter motor and low voltage of the generator due to poor contact. Tire rubber is very sensitive to corrosion by oil. Contact with oil will cause the rubber to soften or peel. Short-term contact can cause abnormal damage or even serious damage to the tire.
4. Four fears of "washing"
Some people who are new to driving or repairing may think that all Toyota Car parts need to be cleaned. In fact, this understanding is one-sided. For the paper air filter element of Toyota Car engine, when removing the dust on it, you cannot use any oil to clean it. You only need to gently tap it with your hands or blow high-pressure air from the inside of the filter element to the outside; for leather parts, It is also not advisable to use oil for cleaning, just wipe it clean with a clean rag.
5. Five fears of [pressure"
If the tire casing is stored under pressure for a long time and is not turned over in time, it will be deformed due to extrusion, which will affect its service life; the paper filter elements of the air filter and fuel filter will be greatly deformed if extruded. It cannot reliably perform the filtering function; rubber oil seals, triangular tapes, oil pipes, etc. cannot be squeezed, otherwise they will also deform and affect normal use.
6. Six fears of [repetition"
Some parts should be used once, but individual drivers or repairmen reuse them in order to save or because they do not understand the "taboos". This can easily lead to accidents. Generally speaking, Toyota Car engine connecting rod bolts and nuts, imported diesel engine injector fixing bolts, cylinder liner water blocking rings, sealing copper pads, various oil seals and sealing rings of the hydraulic system, and pins and cotter pins in important parts, etc. After the parts are disassembled, they must be replaced with new ones; for Toyota Car engine cylinder gaskets, although no damage is found during maintenance, it is best to replace them with new ones, because old ones have poor elasticity, poor sealing, and are prone to ablation damage and need to be replaced after a short period of use. It is time-consuming and labor-intensive, so it is better to replace it if there is a new one.
You must know that it is becoming a global trend for Petrol Car parts manufacturers to separate from vehicle companies and form specialized Toyota Car parts groups. Almost all of the internationally renowned Toyota Car and parts companies have established joint ventures or wholly-owned enterprises in China, and more than 1,000 joint ventures have introduced technology. A number of domestic Toyota Car and parts companies with high technological content, good efficiency, and large scale are gradually becoming more and more popular. As the international Toyota Car industry begins to implement the "global procurement" strategy for parts and components and international multinational Petrol Car companies implement localization strategies, there will be a huge gap in parts and accessories in the domestic market.