Explanation of auto repair tool knowledge and product recommendation

What are the commonly used car maintenance tools and equipment, and what tools are used in car maintenance?

Auto repair tools, not only car repair shops need to be equipped, some car owners will also prepare several commonly used car repair tools for their cars, such as jacks, hammers, wrenches, pliers, tow ropes, etc. When there is a small fault in the car, you can deal with it yourself.

A universal tool for auto repair

hammer

Features: There are two kinds of iron hammers: round hammers and cross-head hammers, the weight of the hammer is 0.25 kg, 0.5 kg, 0.75 kg, 1 kg, etc., and the length is 320-350 mm.

Usage: When tapping, hold the back end of the hammer handle about 10 mm with your right hand, hold it with moderate grip strength, and keep your eyes on the workpiece. You can skillfully use hand wave, elbow wave, arm wave and other force methods.

Kiko

Features: Also known as a screwdriver, it is a tool used to tighten or loosen screws with slots, including wooden handle drivers, piercing drivers, clamp handle drivers, cross drivers and eccentric drivers.

Usage: Let the screwdriver mouth and the screw groove fit completely, and after the screwdriver centerline is concentric, twist the screwdriver, and the screw can be tightened or loosened.

pincers

Features: Lithium fish pliers and needle-nose pliers are commonly used in automobile repair, carp pliers clamp flat or cylindrical parts by hand, and those with cutting edges can cut off metal. Needle-nose pliers are used to hold parts in tight places.

Usage: Place the jaws inward, use your little finger to reach between the two handles to resist the handle, and open the head of the handle, so that the handle is flexible. Wipe the pliers clean before use, and do not forcibly twist the screws.

wrench

Features: For folding bolts and nuts with edges and corners. Commonly used are open-end wrenches, torx wrenches, socket wrenches, active wrenches, torque wrenches, pipe wrenches and special wrenches, note that the screws or nuts applicable to each type of wrench are different.

Usage: When using, adjust the wrench to be slightly larger than the nut, hold the handle with your right hand, and then rotate the worm gear with your right finger to make the wrench press the nut.

Special tools for auto repair

Spark plug sleeve spark plug sleeve

Features: The spark plug sleeve is used to disassemble and assemble the engine spark plug. The hexagonal opposite size of the sleeve is 22~26 mm, which is used to fold 14 mm and 18 mm spark plugs; The hexagonal side of the sleeve is 17 mm and is used to fold 10 mm spark plugs.

Usage: Put the spark plug into the hexagon of the wrench, then gently put it into the cylinder, and tighten it clockwise. When using, according to the assembly position of the spark plug and the size of the spark plug hexagon, spark plug sleeves of different heights and radial sizes are selected. When disassembling and assembling, the spark plug sleeve should be turned again to prevent the sleeve from slipping.

Grease gun

Features: The grease gun is used to fill grease with mechanical equipment, and is composed of a grease nozzle, an oil pressure valve, a plunger, an oil inlet hole, a piston rod, etc.

Usage: first turn the head of the gun away from the barrel, then pull the piston to the top, and then insert the tail of the open butter barrel into the tube, at this time re-screw the head and barrel, pull up the piston and quickly put it down, and then shake the handle of the tip to use butter.

Engine cranes

Features: When the engine is lifted from the car, a crane is used, and the crane has a hydraulic movable crane and a hinged hanger.

Usage: Use an iron link to the engine hook, use the boom to lift the engine, tie the engine body securely with a rope or wire rope, or install an eye on the cylinder head to lift or lift it down. When the engine is hoisted out, a protective cover should be used to avoid damage to the body.

jack

Features: Jack is an indispensable tool when changing tires, which can be divided into three types: rack, screw and hydraulic jack, and is generally used to lift cars and other heavy objects. The lifting force of the jack is 3 tons, 5 tons, 8 tons, etc.

Usage: When using the jack, first tighten the switch, put the jack well, align the top position, press the handle, and lift the weight. When the jack is dropped, the switch is slowly unscrewed, and the weight gradually descends. When dropping the jack, the switch should be twisted slowly to facilitate the descent

Gearbox top

Features: Responsible for the installation and dismantling of the conveyor, front and rear axles and other objects weighing no more than 500kg, which is an indispensable lifting and transportation tool for automobile repair and maintenance factories.

Usage: Start by lifting the car to a certain height. Then push the top of the gearbox under the car, and raise it to a suitable position, remove the objects that need to be repaired and put them in the center of the bracket, then tie the objects with steel chains, open the unloading valve, and put the brackets and objects in the bottom position. Next, push the gearbox to the desired position and use a crane to lift the object down for repair. After the object is repaired, the object is lifted and placed in the center of the bracket with a crane, and the object is fastened with a steel chain to push the hydraulic transport lifter to the appropriate position under the car. Finally, close the relief valve, step on the oil pump, lift the object to a suitable position, and install the object.

Engine flip frame

Features: Automobile engine flip frame is a kind of commonly used equipment for automobile repair and maintenance, which can set up all auxiliary facilities of the engine on the flip frame for engine overhaul, starting, fault setting, diagnosis, elimination, etc.

Usage: First, remove the engine flip head from the flip frame motherboard; Then the flip head is fixed on the three process holes of the engine, the engine is lifted with hoisting equipment, and it is raised to the position that the height of the main board assembly of the engine flip head is slightly higher; Finally, connect the main board of the engine flip frame with the flip head together, adjust the upper and lower heights, and fix the motherboard and the flip head together with bolts, which can be used.

Auto repair gadgets

Valve spring loader and removator

Features: Valve spring clamp is a special tool used to disassemble and assemble valve springs.

Usage: To use, retract the jaws to the smallest position, insert them under the valve spring seat, and then rotate the handle. Press the left palm forward to make the jaws close to the spring seat, and after loading and unloading the valve lock (pin) piece, rotate the valve spring loading and unloading handle in the opposite direction, and take out the loading and unloading pliers.

Cylinder liner puller

Features: As long as the cylinder liner puller is screwed into the cylinder block, the cylinder liner can be easily pulled out, which saves a long detection time and improves the maintenance efficiency.

Usage: First screw the strut onto the diagonal threaded hole of the cylinder head, drive the cylinder liner puller to the strut between the struts, and then clamp the pull disc boss on the inside of the cylinder liner, and then fix the screw with one hand, and rotate the large thread of the special tool with the other hand to pull the plate without force and do not shake the large nut with both hands in the clockwise direction until the cylinder liner is pulled out as a whole, and finally unscrew the strut fixing nut to take out the main body of the special tool and the cylinder head as a whole.

Piston ring loading and unloading pliers

Features: The piston ring loading and unloading tong is used to load and unload the engine piston ring to avoid the piston ring being disassembled due to uneven force.

Usage: When using, clamp the piston ring loading and unloading pliers to the piston ring opening, gently hold the handle, slowly shrink, the piston ring will slowly open, and the piston ring will be loaded into or removed from the piston ring groove. When using piston ring dismounting pliers, the piston ring must be evenly forced.

Injector puller

Features: It is used to pull out the faulty injector, and the accessories will not be damaged during the pull-out process, and at the same time, the working hours are greatly shortened and the extraction efficiency is improved.

Usage: Attach the injector to the vice and remove the cap with a wrench. Then unscrew out the adjustment screws with a slotted screw. Next, take out the gasket, adjust the spring, and the mandrel. With the injector nozzle facing up, use a socket wrench to remove the nozzle cap nut. Finally, the needle valve coupling is removed.

Oil Seal Installation Tool

Features: The oil seal is a mechanical component used to seal the oil, which isolates the parts that need to be lubricated from the transmission parts so that the lubricating oil will not leak.

Usage: First, the rear oil is sealed on the mounting plate, and then the mounting disc with oil seal is fixed on the crankshaft with three M14×1.5 bolts, and then the mounting sleeve is fixed on the mounting disc with the hexagonal nut of M20, so that the front end face of the mounting disc is pressed against the back shoulder of the oil seal, and the nut is tightened, and the mounting sleeve will smoothly push the oil seal into the oil seal seat hole between the crankshaft and the cylinder block. Finally, the mounting sleeve and mounting disc are removed from the crankshaft.

Other gadgets

Tire scraper, tire balancer, oil filter removal tool, shock spring compressor, oxygen sensor removal tool, ball joint extractor, puller, disc brake cylinder adjuster, automobile tester, air compressor, oil receiving machine, dent repair tool set, etc. In addition, there are flashlights, tow ropes, warning triangles, insulating gloves, tire leak inhibitors, car battery clamps, black tape and other auxiliary tools. Source: Fair to my home