The fuel consumption per 100 kilometers of Great Wall pickup truck Fengjun 3 and 5 diesels is about 7 liters.
What does car fuel consumption depend on:
1. Whether refrigeration and air conditioning are used
2. Driving conditions, the most fuel-efficient conditions are at constant speed and economical speed
3. The lighter the vehicle, the more fuel-efficient it is.
4. Electricity consumption. The more electricity it consumes, the greater the magnetic resistance of the generator.
5. Driving habits: applying the brake too much will definitely not save fuel.
6. The best engine temperature is about 70 degrees. When it is too low, the oil viscosity will be high and the lubrication will not be good. When the temperature is too high, the oil adhesion is poor and lubrication is reduced. At the same time, the cooling fan is turned on, which consumes power and then oil.
7. Engine oil performance
8. Tire resistance, wide tires have greater resistance, and the resistance also increases when they are starved of air
9. Aerodynamics of car body design Learn
Automobile engine overhaul mainly includes replacing valves, pistons, cylinder liners, or boring cylinders, grinding shafts, etc. According to the standard of general 4S stores, 4 components need to be replaced, that is, pistons, piston rings, valves, valve oil seals, valve guides, crankshaft bushes, connecting rod bushes, timing belts, and tensioners.
1. What projects should be overhauled?
1. If the timing of the chain is required, the timing chain and tensioner must be replaced. In addition, machining, boring cylinder lower sleeve, grinding shaft, cold press pipe, and overhaul kit need to be 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, etc. In short, it is necessary to replace all the parts that are not sure to be installed. Repairing the engine ensures the engine's 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 generally mainly includes the water pump (the pump blades are corroded or the water seal has water seepage), the upper and lower water pipes of the engine, large circulation iron water pipes, small circulation hoses, and throttle water pipes (with aging problems). (If it expands, it must be replaced), thermostat, etc.;
The fuel part generally includes the upper and lower oil rings of the injector, the gasoline filter; the ignition part: if the high-voltage line is swollen or leaking, replace it, and the fire Piston; upper and lower oil rings of fuel injection nozzle, gasoline filter;
4. Ignition part: Replace the high-voltage line if it is swollen or leaking, and the piston is on fire;
5. Air intake Part generally includes air filters;
6. Other auxiliary materials generally include antifreeze, engine oil, engine oil filter, detergent, engine metal cleaner or all-purpose water;
7. The components to be inspected generally include whether 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 Axis, if it is a hydraulic lifter, please check the hydraulic lifter;
8. Cooling system part: water pump (pump blade corrosion or water seal)There is water leakage), engine upper and lower water pipes, large circulation iron water pipes, small circulation hoses, throttle water pipes (must be replaced if they are aging and swelling);
9. Fuel part: The overhaul kit includes the cylinder gasket And all kinds of oil seals, valve cover gaskets, valve oil seals, gaskets, etc.;
Engine overhaul projects generally include overhauling the engine, externally processing the cylinder head plane, boring the cylinder, clearing the water tank, Grind valves, install cylinder liners, press pistons, clean oil circuits, maintain motors, maintain generators, etc.
2. Parts that need to be replaced when overhauling the engine
1. Valve oil seal package, one set of intake and exhaust valves, one set of plug rings, and one set of cylinder liner with 4 push pieces Two pieces, large and small tiles, 4 plugs,
2. The cooling system generally mainly includes the water pump (the pump blades are corroded or the water seal has no leakage)
3. The upper and lower water pipes of the engine , large circulating iron water pipe, small circulating rubber hose, and valve water pipe (must be replaced if there is no aging or shrinkage);
4. The fuel part generally includes the upper and lower oil rings of the fuel injector, and the gasoline filter;
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5. The ignition part generally mainly includes whether the high-voltage line has no shrinkage or leakage. Otherwise, replace the spark plug. The air intake part generally mainly includes the air filter.
6. Other auxiliary materials : Antifreeze, engine oil; whether the cylinder head is corroded or uneven, crankshaft, camshaft, reverse belt tensioner, reverse belt zeroing wheel, reverse belt, external engine belt and zeroing wheel, rocker arm or rocker arm If it is a hydraulic lifter, please check the hydraulic lifter. The overhaul kit includes cylinder gaskets and various oil seals, valve cover gaskets, valve oil seals, gaskets, etc.