Cleaning and maintenance of automotive outer accessories
Automotive external parts are mainly made of plastic， stainless steel， glass， Rubber and other materials or by electroplating process。The cleaning and maintenance part of the automotive outer arrangement mainly includes：Front and rear bumpers， Stainless steel parts External decorated chrome parts glass， Car Light wheel Tire Wait for a long time to expose to the wind and sunlight， These external parts of acid and alkali corrosion，Easy oxidation Crack Ageing， Lose gloss， So therefore， Automotive external parts are often cleaned and treated，This is especially important。
Before maintenance of the external parts of the car，the first， Use professional cleaning water to remove dust and dirt above，Then do the following cleaner and maintenance operations。
1。Cleaning and maintenance of stainless steel parts and electroplating parts
First use super concentrated shampoo，Then use a variety of soft brushes and cotton towels to clean stainless steel parts and electroplating parts。then，You can use clay and polishing agents to brighten stainless steel and electroplating parts。
2。Cleaning and maintenance plastic parts
Cleaning and maintenance of plastic parts can be carried out using plastic maintenance agents。Plastic care agent does not contain organic silicon，It is a multi-functional care agent，clean， polishing， Maintain once again。
the first， Clean the exterior of the plastic trim strip with super concentrated shampoo。Wipe the surface of the plastic trim strip with a liqueur with a small amount of plastic care agent，Until clean and bright, then rinse with water。For stubborn traces on plastic parts，You can also use clay cleaning。
3。Cleaning and maintenance wheel and tires
1）Wheel cleaning and maintenance
The cleaning of the wheel is mainly to remove the soil， Brake dust Iron filings and oxide film on the hub。Wash the hub with high pressure water，Spray the wheel with a general water or special wheel cleaner，Stay3-5minute，When spraying, use a brush or sponge while crying while，Then wipe the wheel with a dry towel，Until the original metal luster。
2）Cleaning tire
There are two main dys on the tires.：One is water soluble soil，Dust dirt， sand， and many more，The second is water insoluble soil, such as oil asphalt，Jelly。It may also be contaminated by some acidic and alkaline substances，Make the surface of the tire as white。If water soluble dirt is attached to the tire，High pressure water can be used to wash the soil and dirt on the tire，Simultaneously，When the brush is used, it can remove the mud when using a brush.， sand， and many more Deeply embed tires。If there is water insoluble dirt and whitening in the tire，Further cleaning should be carried out using all-power water or universal foam cleaner or concentrated car wash solution。Then wipe dry。
3）Polishing and maintenance of tires
Polishing and maintenance of rubber tires can greatly reduce tire taps， Ageing， And faded。Simultaneously，It can also make the surface of the tires like new。Provide the following products：
3。1）Tire foam whitening agent（aerosol）Or edible wax，Evenly spray these products on the tire，Naturally drying will produce darkness Bright luster。
3。2）Tire oil light brightener（liquid），Use a brush to impregnate the whitening agent on the tire，Tires are immediately black and bright。
3。3）Water-based tire light bright（liquid），Dilution in proportion to water or directly in the tire with brush with brightener，The tire immediately turned black.。
3。4）Tire protection wax（solid），Use a sponge to coat the protective wax on the tire，After half of the wax layer, wipe the clean tire with a towel to change and brightened。
Necessity for engine maintenance
Well-known，Engine is the heart of the car，In order to make the heart younger，Always keep strong when leaving the factory，We must always pay attention to the maintenance of the engine。Automobile uses one year or30Years later，000-50，000There will be such a feeling of kilometers.， The driving force of the engine is not as good as the new car Fuel consumption has also increased Engine noise increase，Exhaust emissions are also very different from new cars。
Although some of the design and manufacturing of some cars today is relatively improved，The performance and quality of the engine are also guaranteed。But why do you still have this phenomenon?？The key is the driving habits of each owner and proper use and maintenance of the car.。right now，There are various styles in the market.，More and more newbie drivers，These novices，May only drive will not repair，Don't understand maintenance。The so-called maintenance is mainly the maintenance of the engine。therefore，How to maintain the engine's service life has become a hot problem for car families。
Causes and solutions for engine failure
1。 Engine failure Most of them are deposited by three invisible carbon deposures.“Killer”Caused， Wear and corrosion。
Primary killercarbonCarbon：During the operation of the automotive engine，Inevitably produce carbon deposits and gum。If there is no timely clear，Trouble is endless。Hard carbon deposits are deposited in the engine combustion chamber，Metal parts for scratching engine，Causes severe engine wear。Carbon deposit in piston tank，It also affects the outward elastic tension of the piston ring，Cylinder pressure drops。Carbon deposition deposited in the lubrication system can also cause poor lubrication，Fuel consumption，Power drop in severe cases，Cause serious consequence，For example, pulling the cylinder and fixing tiles。
Second killer wear：When the engine is cold，When the lubricant has not been recycled to the friction surface，The abrasion caused by dry friction occurs in an instantaneous friction in the engine wear60％。Especially in recent years，Many new drivers have appeared，Driving skills and maintenance experience is insufficient to engine“damage”Behavior“fatal”。Used or two years later，The cylinder pressure of the new car is not rare to half of the normal index.。
Third fatal acid corrosion：Burning in the engine combustion chamber per liter，Will produce a liter of water and then add the fuel itself contains sulfur。When the water and sulfur are chemically reacted in a high temperature environment，Then use sulfuric acid（。Simultaneously，Fuel 易彤沙冰机修理 combustion also produces highly corrosive hydrogen chloride and hydrogen bromide。If the sulfur content in the fuel is extremely high，Cylinder wall gap is too large， The acidic substance formed in the engine will contact the metal surface.，Thus causing amazing injuries。lightly， Forming spots and pits，If the weight is heavy Metal surface will be broken into pieces。
two， solution
usually，There are two ways to cope with three main engine killer。“surgery”Maintenance and non-decomposition maintenance。“surgery”repair，Means of， Please go to the maintenance store after the failure，Need to remove eight machines for manual cleaning or replacement accessories，But this method requires a very stringent assembly process。Experienced drivers know Do not easily remove the machine，Apart from this， The performance of the entire 易彤沙冰机维修 machine will inevitably fall，Unable to recover。
Do not disassemble for maintenance，During normal maintenance，Additives must be used to deal with these unfavorable factors。The biggest advantage of this is that there is no need to disassemble，Very convenient to use，In normal operation by“Three killers”The threat caused can be easily eliminated，And you can automatically repair the surface of wear and corrosion，Continuous use allows the engine to always be in“Design work point”status，It greatly reduces the possibility of maintenance，Extend the life of the engine。
Automobile engine repair six points
1）Use quality qualified lubricants
For gasoline engines， SD-SFLevel gasoline engine oil should be selected according to the additional equipment 易彤破壁料理机售后 and conditions of use of the exhaust system； For diesel engines， Should be selected according to the mechanical loadCB-CDLevel diesel oil。Selection criteria must not be lower than the requirements of the manufacturer。
2）Regular replacement oil and filter
Any quality grade lubricant will change its oil during use。After reaching a certain mileage，Performance decline will bring various problems to the engine。To avoid failure，The oil should be replaced regularly according to the conditions of use.，And moderate oil（Usually the upper limit of the oil meter is better）。When the oil passes through the filler hole， Solid particles and viscous materials in oil will accumulate in the filter。If the filter is blocked，When the oil cannot pass the filter element，Cracking the filter or open the safety valve，Bypass valve，Return the dirt back to the lubrication section，Promote engine wear，Internal pollution has increased。
3）Keep the crankbox ventilation
right now，Most gasoline engines are equippedPCVValve（Crankcase forced ventilation device）Encourage engine ventilation。But the pollutants in the qi will depositPCVSurrounding valves，It may block the valve。in casePCVValve is blocked， The contaminated gas will be reversed into the air filter。Polluted filters reduce filtration capacity，Inhaled mixture is too dirty，The pollution of the crankcase is even greater, resulting in increased fuel consumption，Engine wear increase，Even damage to the engine。therefore，PCVMust maintain regular maintenance，cleanPCVPollutants around the valve。
？4）Regular cleaning crankcase
High pressure unburned gas when the engine is running acid， water， The sulfur and nitrogen oxides in the combustion chamber enters the crankcase through the gap between the piston ring and the cylinder wall.。Metal powder mixed with parts wear，Sludge。Suspend in the oil at a small amount，When the amount of oil is large，It will be separated from oil，Clogging filter and oil hole，Causes of engine lubrication difficulties，Wear。In addition，When the engine oil is oxidized at high temperatures， Will produce paint film and carbon and stick it on the piston。Increase engine fuel consumption and reduce power，if serious Piston ring is stuck，Cylinder is pulled。therefore，Efficient use of the lubrication system regularly，Fast cleaning agent cleaning crankcase，Keep internal cleaning inside the engine。
？5）Regular cleaning fuel system
When the fuel supplies through the fuel path to the combustion chamber，Inevitably form colloids and carbon，Deposit in the oil passage， Chemical oil， Injector and combustion room，Interfering fuel flow，Destroy normal air-fuel ratio，Fuel atomization，It will lead to performance issues，For example, engine surge， Knock on the door Unstable idle speed And bad acceleration。Cleaning fuel system with powerful and efficient cleaners using fuel systems，And use the corresponding additive to control the formation of carbon，It always allows the engine to remain best。
？6）Regular maintenance water tank
Rust and fouling of engine water tanks is the most common problem。Rust and scale limit the flow of cold fluid in the cooling system，Reduce heat dissipation，Leading the engine overheating，Even cause damage to the engine。The oxidation of the coolant also forms an acidic substance.，Water tank metal parts corrosion，Damage and leakage caused by water tank。Regular use of powerful effective water tank cleaner cleaning tank，Remove rust and scale，Engines can not only work normally，And extend the overall life of the water tank and engine。
