Optimizing tariff schedules by HS code

List of the catalog of this article:

• 1,Optimizing tariff schedules by HS code How to remove the car engine
• 2. The process and steps of automobile engine disassembly
• 3, Basic steps for car engine disassembly
• 4, What is the order of car engine disassembly (parts)?

How to remove the car engine

1. Empty the water and oil in the tank, turn off the car fuel tank switch, and remove the oil pump and oil pipe connector. ( 2) Remove the power cords and wires on the generator. Remove the inlet pipes of the water tank and the nuts everywhere. Connect bolts and pins, etc. Remove the water tank and frame. ( 3) Remove the hood and fender.

2. Remove the engine from the frame, release the water and engine oil in the water tank, and turn off the switch of the car fuel tank; remove the oil pipe connector of the oil pump; remove the power cord and remove the wire on the generator; remove the inlet pipe of the water tank and the nuts, connection bolts and pins everywhere; remove the water tank and frame; remove the hair Motivation hood, wing plate.

3. The specific disassembly steps are as follows: Method 1: Unplug the battery wiring when the ignition switch is turned off. Take out the battery. Pay attention to pull it out first and then take it off. Unstighten the fastening bolt of the battery bracket and remove the battery bracket. Place a collection plate under the engine. Unscrew the lid of the coolant storage tank.

4. Remove the cylinder head fixing screw, and note that the screw should be crossed from both ends to the middle. 2) Remove the cylinder cushion and pay attention to the installation direction of the cylinder cushion. 3) Flip the engine and remove the oil span fixing screw (note that the screw should also be loosened from both ends to the middle). 4) Remove the oil span and oil spat.

5. Engine disassembly steps: place the engine upright and remove the intake and exhaust manifolds and cylinder head outlet pipes. Remove the cylinder head cover and the rocker arm shaft assembly on the front and rear cylinder heads;Remove the crankshaft ventilation pipe, remove the bar chamber cover; remove the putter.

The process and steps of automobile engine disassembly

Remove the cylinder head and gasket, cylinder head bolts and screws The mother should be disassembled in the order specified by the original car. Note: If there is no regulation, it should be disassembled evenly from both ends to the middle.

Place the engine vertically. Remove the fixing screw of the cylinder head. Note that the screws should be loosened from both ends to the middle, and the screws should be removed three times. Lift the cylinder head, remove the cylinder cushion, and pay attention to the installation direction of the cylinder cushion. Loosen the oil release screw of the oil span shell and drain the oil in the oil span shell.

The general operation process of removing the cylinder head from the cylinder block is as follows: removing the electrical connector, accessories and water pipe → removing the intake manifold → removing the exhaust manifold → removing the timing belt → removing the valve chamber cover → removing the cylinder head. The details are as follows: Process 1: Remove the electrical connector, accessories and water pipe 1 Remove the fuel pump fuse.

The process of removing the engine from the frame: (1) Release the water and engine oil in the water tank, turn off the switch of the car fuel tank, and remove the oil pipe connector of the oil pump.(2) Remove the power cord and the cable on the generator. Remove the inlet pipe of the water tank and the nuts everywhere. Connecting bolts and pins, etc. Take down the water tank and frame.

Basic steps for car engine disassembly

1. First, remove the battery ground wire, drain the coolant, remove the mask and baffle, remove the oil pipe and other pipes, and remove the flywheel cover. Put it back in the opposite direction. The specific steps are as follows: remove the battery ground wire to avoid accidental damage to the electrical equipment. Adjust the empty switch to the "warm air" position to ensure that the coolant can be completely discharged.

2. Confirm the required disassembly valve group, recognize the special tools for valve disassembly and installation, and select the appropriate size of valve disassembly joints and adapters.

3. First, remove the hood.Second, it must be disassembled when the engine is fully cooled to avoid deformation of the machine parts. Third, clean the coolant in the radiator and water cover, and clean the oil in the oil shell.

What is the order of car engine disassembly (parts)?

Compressed valve spring: Remove the valve adjustment gasket, remove the inlet and exhaust valves, use valve disassembly pliers to compress the valve spring, remove the lock, spring seat, valve spring and valve successively, and use sharp-nosed pliers to remove the valve rod oil seal. Notes on the disassembly order of the engine: Do not scratch the valve seat, and the valve oil seal should be replaced with a new one.

Turn the crankshaft to put the engine's 4-cylinder piston at the lower stop. Remove the fastening nuts of the connecting rod of the 4-cylinder respectively, remove the connecting rod bearing cover, pay attention to the connecting rod pairing mark, and put it in order.

The order of disassembly and installation of the engine you mentioned is a little too complicated. The order of disassembly and installation is also different according to the brand of engine. This belongs to precision machinery. If you don't know anything, don't move around. You'd better find a professional to help you disassemble the engine.

Dismantling the internal equipment! Remove the removable accessories on the engine body in turn first! Example: The gasoline pump water pump is then disassembled from the top to bottom of the engine! But the first thing you do is to finish the oil in the oil sup shell. The first is the valve chamber cover, and the second is the convex shaft, the three-cylinder head, the four-oil span, the oil pump, the five-connecting rod and the piston.