Automotive engine overhaul mainly includes replacing valves, pistons, cylinder liners or cylinder boring, shaft grinding, etc. According to the 4S general stores standard, 4 components need to be replaced, namely pistons, piston rings, valves, valve oil seals, valve guides, crankshaft bushings, connecting rod bushings, timing belts and tensioners.
1. Which projects should be reworked?
1. If chain shimming is necessary, the timing chain and tensioner must be replaced. In addition, the machining, lower bore cylinder sleeve, grinding shaft, cold press pipe and overhaul kit need to be replaced. replaced. Front oil seal, rear oil seal, camshaft oil seal, oil pump, valve, etc. Sometimes it is necessary to replace external parts, such as clutch plates, andvs. In short, it is necessary to replace all the parts that are. Not sure if installed. Engine repair ensures engine performance.
2. The mechanical part generally includes a set of intake and exhaust valves, a set of piston rings, a set of 4 cylinder liners (if it is a 4-cylinder engine), two thrust plates , and 4 pistons. ;
3. The cooling system usually mainly includes the water pump (the pump blades are corroded or the hydraulic seal has water seepage), the upper and lower water pipes of the engine, the high circulation iron. water pipes, small circulation pipes and butterfly water pipes (with aging problems). (If it expands, it needs to be replaced), thermostat, etc. ;
The fuel part generally includes the upper and lower oil. injector rings, fuel filter; the ignition part:if the high voltage line is swollen or leaking, replace it and the fire piston; the upper and lower oil rings of the fuel injection nozzle, fuel filter;
< p>4. Ignition Part: Replace the high voltage line if it is swollen or leaking and the piston is on fire;5. The air intake part usually includes the air filters; >6. Other auxiliary materials generally include antifreeze, engine oil, engine oil filter, detergent, engine metal cleaner or all-purpose water
7. Components to be inspected generally include if the cylinder head is corroded; or uneven, crankshaft, camshaft, timing belt tensioner pulley, timing belt adjustment pulley, timing belt, external engine belt and adjustment pulley, rocker arm or rocker arm shaft, if it is 'a hydraulic lifter, please check the hydraulic lifter
8. Pieceof the cooling system: water pump (the pump blades are corroded or the water seal is leaking), the upper and lower water pipes of the engine, the large iron circulation pipes, the small cooling pipe circulation, butterfly water pipe (needs replacement if aged and swollen);
9. Fuel part: The overhaul kit includes cylinder gaskets and various oil seals, valve chamber cover gaskets, valve oil seals, etc. Gaskets and other things;
Engine overhaul projects usually include engine overhaul, cylinder head plane machining, cylinder boring, water tank cleaning, grinding of the valve, cylinder liner insertion, piston pressing, oil circuit cleaning, engine maintenance, generator set maintenance, etc.
2. Parts that must be replaced during engine overhaul
1. Jo setvalve oil ints, a set of intake and exhaust valves, a set of plug rings and a set. of cylinder liner with 4 tappets Two pieces, large and small tiles, 4 plugs,
2. The cooling system usually mainly consists of the water pump (the pump blades are corroded or the hydraulic seal is not leaking)
3. The upper and lower water pipes of the engine, large iron circulation water pipes, small rubber circulation pipes and valve water pipes (need to be replaced if they do not age or shrink) >
4. The fuel part usually includes the upper and lower oil rings of the injector); , and the fuel filter;
5. The ignition part generally includes mainly if the high voltage line has no shrinkage or leakage. If not, replace the spark plug. The air intake part generally mainly includesremove the air filter. .
6. Other auxiliary materials: antifreeze fluid, engine oil; if the cylinder head is corroded or uneven, crankshaft, camshaft, reverse timing belt tensioner, reverse timing belt reset pulley, reverse timing belt, external engine. reset belt and pulley, rocker arm or rocker arm shaft. If it is a hydraulic lifter, please check the hydraulic lifter further. The overhaul kit includes cylinder gaskets and various oil seals, valve cover gaskets, valve oil seals, gaskets, etc.
What is the fuel consumption per 100 kilometers of Great Wall Fengjun 3 and 5 diesel pickup truck?
Car engine overhaul mainly includes replacing valves, pistons, cylinder liners or boring cylinders, grinding shafts, etc. According to the 4S general stores standard, 4 componentsants need to be replaced, namely pistons, piston rings, valves, valve oil seals, valve guides, crankshaft bushings, connecting rod bushings, timing belts and tensioners.
1. Which projects should be reworked?
1. If chain shimming is necessary, the timing chain and tensioner must be replaced. In addition, the machining, lower bore cylinder sleeve, grinding shaft, cold press pipe and overhaul kit need to be replaced. replaced. Front oil seal, rear oil seal, camshaft oil seal, oil pump, valve, etc. Sometimes it is necessary to replace external parts, like clutch plates, etc. In short, it is necessary to replace all the parts that are. Not sure if installed. Engine repair ensures engine performance.
2. The mechanical part generally includes a set of intake valves andexhaust, a set of piston rings, a set of 4 cylinder liners (if it is a 4-cylinder engine), two thrust plates, and 4 pistons. ;
3. The cooling system usually mainly includes the water pump (the pump blades are corroded or the hydraulic seal has water seepage), the upper and lower water pipes of the engine, the high circulation iron. water pipes, small circulation pipes and butterfly water pipes (with aging problems). (If it expands, it needs to be replaced), thermostat, etc. ;
The fuel part generally includes the upper and lower oil. injector rings, fuel filter; the ignition part: if the high voltage line is swollen or leaking, replace it and the fire piston; the upper and lower oil rings of the fuel injection nozzle, fuel filter;
< p>4. Ignition Part: Replace Lihigh voltage problem if it is swollen or leaking and the piston is on fire;5. The air intake part usually includes the air filters; >6. Other auxiliary materials generally include antifreeze, engine oil, engine oil filter, detergent, engine metal cleaner or all-purpose water
7. Components to be inspected generally include if the cylinder head is corroded; or uneven, crankshaft, camshaft, timing belt tensioner pulley, timing belt adjustment pulley, timing belt, external engine belt and adjustment pulley, rocker arm or rocker arm shaft, if it is a hydraulic lifter, check the hydraulic lifter
8. Cooling system part: water pump (pump blades are corroded or hydraulic seals have water seepage), on the engine. Sewer pipes, large iron circulating water pipes, small pipes traffic in rubberthrottle and throttle water hoses (need to be replaced if aged and swollen);
9. Fuel part: Overhaul kit includes cylinder gaskets, various gaskets and valves Chamber cover gaskets, valve gaskets, gaskets, etc. ;
Engine overhaul projects generally include engine overhaul, external treatment of the cylinder head plane, cylinder boring, cleaning the water tank, grinding the valve, and inserting the cylinder liner, press the piston,
clean the oil circuit, maintain the engine, maintain the generator, etc.
2. Parts that must be replaced during engine overhaul
1. Valve oil seal set, a set of intake and exhaust valves, a set of plug rings and a set of cylinder liner with 4 tappets Two pieces, large and small tiles, 4 plugs,< /p>
2. The cooling systemUsually mainly involves the water pump (the pump blades are corroded or the hydraulic seal is not leaking)
3. The upper and lower water pipes of the engine, the large circulation iron water pipe, the small circulation rubber pipe and the valve water pipe (need to be replaced if there is no aging and shrinkage
4. The fuel part usually mainly includes the upper and lower oil rings of the fuel injector and the fuel filter.
5 The ignition part usually mainly includes if the high voltage line does not have one . shrinkage or leakage. If not, replace the spark plug. The air intake part usually mainly includes the air filter.
6. Other auxiliary materials: antifreeze, engine oil if the cylinder head is corroded or uneven, crankshaft; , camshaft, reverse belt tensioner, reverse belt reset wheel, creverse belt, external motor belt and reset wheel, rocker arm or rocker arm shaft, if it is hydraulic lifter, please check the hydraulic lifter. The overhaul kit includes cylinder gaskets and various oils. gaskets, valve cover gaskets, valve oil seals, gaskets, etc.
The diesel fuel consumption of Great Wall Fengjun 3 and 5 pickup trucks is approximately 7 liters per 100 kilometers.
What does the fuel consumption of a car depend on:
1. If refrigeration and air conditioning are used
2. Driving conditions are the most fuel efficient. at constant speed and at economical speed
3. The lighter the vehicle, the more fuel efficient it is.
4. The more electricity it consumes, the greater the magnetism. generator resistance.
5. Driving habits, braking too much will certainly not save fuel.
6. The best engine temperature is around 70 degrees. If it is too low, the viscosity of the oil. will be high and lubrication will not be good. When the temperature is too high, oil adhesion is poor and lubrication is reduced. At the same time, the cooling fan turns on, which consumes energy and then oil.
7. Engine oil performance
8. Tire strength, wide tires have greater strength and the resistance also increases when they are short of air
9. Aerodynamics of body design