What are the parts in the engine overhaul package? Must the car pump be changed when it leaks?
Engine overhaul package includes the following parts:
Mechanical part: This includes overhaul package, valve inlet and exhaust sets, piston ring sleeve, cylinder liner (if it is a 4-cylinder engine, it is two pieces of 4 thrust plates, 4 sets of pistons).
Cooling system part: including the water pump (if the pump blade corrosion or water seal seepage phenomenon need to be replaced), the engine upper and lower water pipes, large circulation cast iron pipes, small circulation hoses, throttle water pipes (if there is aging expansion phenomenon must be replaced).
Fuel part: This usually includes the upper and lower oil ring of the nozzle and the gasoline filter.
Ignition part: Regardless of whether the high-voltage line has expansion or leakage phenomenon, the spark plug and air filter need to be replaced.
Other accessories: This may include antifreeze, oil, oil grid, cleaning agent, engine metal cleaning agent or all-purpose water.
Parts to be inspected: This may include whether the cylinder head is corroded or uneven, crankshaft, camshaft, timing belt tensioner, timing belt adjustment wheel, timing belt, external engine belt and adjustment wheel, rocker arm or rocker arm shaft, and if hydraulic tappet, hydraulic tappet also needs to be tested.
In addition, the overhaul package also includes cylinder gaskets and various types of oil seals, valve chamber cover gaskets, valve oil seals and gaskets. Projects generally include overhauling the engine, machining the cylinder head plane, clearing the water tank, grinding the valve, inserting the cylinder liner, pressing the piston, cleaning the oil circuit, maintaining the motor and maintaining the generator.
The car pump is leaking and must be replaced. Here's why:
Water leakage of the pump will make the coolant directly penetrate the bearing of the pump, thereby washing the lubrication fluid on the bearing, and it is likely to damage the bearing of the pump in the long run.
Water pump leakage is generally damaged seal ring, if not replaced in time, water leakage may lead to engine burn out.
Even if it is only a slight seepage, it should be repaired or replaced as soon as possible, because the pump is a very important part of the car cooling system, and its role is to maintain the normal operating temperature of the engine.
The seriousness of the coolant leak cannot be ignored, because the coolant itself is to prevent the engine from "boiling" when the car is driving at high speed. Once the water pump is found to be leaking, it should be checked and repaired at the auto repair shop as soon as possible.
In addition, you can also check whether the pump is leaking by some methods, such as: parking the car after a night to check whether there are traces of cooling liquid drops wet under the car, check whether the pump pulley is loose, listen to the sound of the car to determine whether the bearing is damaged, check whether there is leakage around the pump.
How long it takes to replace the spark plug depends on the material of the spark plug and the recommendations of the automobile manufacturer. In general, the replacement cycle of ordinary spark plugs is 20-30,000 kilometers, while precious metal spark plugs such as platinum, iridium, etc., the replacement cycle can be as long as 6-100,000 kilometers. However, different car manufacturers have different regulations for the replacement cycle of spark plugs, so it is best to follow the recommendations in the vehicle maintenance manual.
In addition, some special cases also need to replace the spark plug in advance, such as high-temperature engines or serious carbon deposits, may need to replace the spark plug in advance to avoid engine failure. Therefore, it is recommended that owners regularly check the use of spark plugs and replace them according to the actual situation.
In general, the replacement cycle of the car spark plug is not fixed, but needs to be judged and made according to the specific situation. Owners should understand the recommendations in the maintenance manual of their vehicles, and replace them according to the actual situation to ensure the normal operation of the vehicle and extend the service life.
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