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Ten basic common sense should know about car repair
2014-10-30 11:52:54
 

1, the fear of "dirty"

Fuel filter, oil filter, air filter, hydraulic oil filter and various filters and other parts if it is too dirty, it will lead to filtration effect of variation, too many impurities into the oil cylinder, increasing mechanical wear and tear, increasing the likelihood of failure; if severely clogged, causing the vehicle will not work properly. Water tank heat sink, air-cooled engine block and cylinder head fins, fin coolers and other parts too dirty, it will lead to poor heat dissipation, the temperature is too high. Therefore, for such "Pazang" The parts must be timely cleaning and maintenance.

2, the fear of "hot"

Engine piston temperature is too high, easily lead to overheating seizure occurred hold cylinder; rubber seals, triangle tape, tires and other overheating, easy to premature aging, performance degradation and shorten life; starters, alternators, regulators and other electrical equipment coil overheating, easily burned and scrapped; vehicle bearing should maintain an appropriate temperature, such as overheating, make lubricants soon degenerate, resulting in bearing burned vehicle damage.

3, the fear of "string"

Diesel fuel system in a variety of couplings, the primary driven gear reducer drive axle within the hydraulic control valve block and valve in the hydraulic steering valve spool and sleeve, these pieces fit even in manufacture after special processing, grinding together in pairs, with a very sophisticated, always in pairs lifetime in use, must not be interchanged. Some mutual mating parts such as pistons and cylinder liners, bearings and journal, valve and valve seat, connecting rod and shaft cover tile, etc., after a period of running-in effect, the relative fit better in the maintenance, it should be noted assembled in pairs, not to each other, "stopping."

4, the fear of "reverse"

When installing the engine cylinder head gasket can not hold against, otherwise it will lead to premature erosion damage to the cylinder head gasket; piston ring for some special shapes can not be installed backwards, should be assembled in accordance with the requirements of different models; there are directions to install the engine fan blades requirements, exhaust fan generally divided in two and sucked wind, not backwards, otherwise it will lead to poor engine cooling, the temperature is too high; to have the direction of the tire tread, such as herringbone tread tires, the ground should make prints after installation word tip pointing to the rear to ensure having the greatest driving force. For two tires and installed, different models have different requirements, not free to install.

5, the fear of "missing"

When servicing the vehicle, and some small pieces may be inadvertently missing equipment, and even some people think and do not install equipment does not matter, this is very dangerous and harmful. Engine air lock piece, should be installed in pairs, such as missing equipment or deletion will cause loss of control and crashed piston valve and other pieces; engine connecting rod bolts, flywheel bolts, cotter pins mounted on the drive shaft bolts, locking screws, insurance tablets or spring pad, and other locking devices, once missing equipment, will be used may result in serious malfunction; engine timing gear compartment for gear lubrication oil nozzle leak once installed, can cause serious drain where the engine engine oil pressure is too low; the radiator cap, oil filler cap, fuel tank cap is missing, make sand and dust intrusion, increased engine wear ministries.

6, fear of "oil"

Engine dry air cleaner paper filter, hygroscopic, such as stained fluid, easy to make a higher concentration of mixed gas sucked into the cylinder, the air less than the amount of fuel consumption increased, decreased engine power, the diesel engine is also possible cause "Speed"; if stained with oil triangle tape, will accelerate the corrosion of aging, but is easy to slip occurs, resulting in reduced transmission efficiency; brake shoes, dry clutch friction plate, brake band, etc. If any oil liquid, slip-prone, poor work, thus threatening traffic safety; starter motors and generators carbon brushes, etc., piles of oil is due to poor contact caused by insufficient power to start the motor, the generator voltage is too low. Tire rubber is very sensitive to corrosion oils, will make contact with the oils soften or peeling rubber, short-term exposure can lead to abnormal tire damage or serious damage.

7, the fear of "wash"

Some early car or repair personnel beginner might think that all parts will need to be cleaned, in fact, this understanding is one-sided. For the engine air filter paper, when the dust clears on it, do not use any oil to clean, just gently slap or high-pressure air to blow through the filter from the inside out; for cortical parts, and it is not with oil wash, simply wipe with a clean rag to clean.

8, the fear of "pressure"

Tire casing if long-term storage of reactor pressure and untimely flip will occur due to compression deformation, affecting life; paper element air filter, fuel filter, such as extrusion occurs, will have a greater deformation Filtration can not play the role of reliable; rubber seal, triangle tape, tubing, etc. can not be squeezed, otherwise deform the same will happen, affect the normal use.

9, fear of "near fire"

Tires, triangle belt, cylinder water blocking rings, rubber seals and other rubber products, if close to the fire source, easy to aging deterioration or damage, on the other hand may also cause fires. In particular, some diesel cars, the winter cold is difficult to start, some drivers used a blowtorch heat, be sure to prevent burn lines, oil and so on.

10, fear of "repeat"

Some parts of this should be a one-time use, the individual driver or mechanic, but in order to save or do not understand the "taboo" and repeated use, this can easily lead to accidents. In general, the engine connecting rod bolts, various seal nuts, bolts imported diesel injector, cylinder water blocking rings, seals copper pads, hydraulic systems, pin chip seals as well as important parts of the cotter pin and other parts disassembly after, you must replace the product; the engine cylinder head gasket, although no damage is found during repair, it is best to replace the new, because the old product elasticity is poor, poor sealing, easy ablation damage, no longer need to use the replacement, time consuming, and therefore if new products to try to replace the better.

 




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