186 Diesel air cooled micro tiller valve adjustment skills

1. Cylinder-by-cylinder adjustment method.

Turn the crankshaft until the compression of the 1st cylinder is completed, and adjust the intake and exhaust valves of the 1st cylinder. Then shake the crankshaft, according to the ignition order to make the next cylinder reach the end of compression, and then adjust the intake and exhaust valves of this cylinder, and so on, until the cylinder adjustment is completed.

2. Two adjustment methods.

In production practice, the two-time adjustment method is generally used to adjust the valve clearance, that is, when the first cylinder compresses the end of the top dead center, adjust half of all valves, and then shake the crankshaft for one week, you can adjust the remaining half of the valves, and the adjustment is completed twice.

In the specific steps, first loosen the lock nut, insert the feeler gauge with the thickness that meets the specified clearance between the end face of the door stem and the rocker arm, and rotate the adjustment screw at the same time (rotate clockwise, the valve clearance is reduced; Turning counterclockwise, the valve clearance increases).

Until you feel a slight resistance when pulling the feeler gauge, finally tighten the adjustment screw with the lock nut. When locked, the valve clearance cannot be changed. After the adjustment is completed, it should be rechecked with a feeler gauge and readjusted if there is any change.

Hello friends. It's a single-cylinder engine. Shake the piston to the power stroke and the piston to the top. The intake and exhaust valves are closed. You can adjust the exhaust valve. 25 to 30 wires for the intake valve and 30 to 40 wires for the exhaust, I hope it will help you.

The adjustment skills of the valve of the diesel air-cooled V-cylinder engine need to be mediated.

Pull the machine to the top dead center, that is, after the position of the highest force without pressing the decompression, there is a small loose distance or you open the air deflector and see the magnet on the flywheel turn 15° of the high-pressure pack, which is the top dead center.

Remove the two bolts on the swingarm of the cylinder head cover adjustment, 10mm and 14mm open-end wrenches, and adjust the gap to the distance (that is, the thickness of 1 notebook cover).

The micro tiller is powered by a small diesel engine or gasoline engine, which has the characteristics of light weight, small size and simple structure. Micro tiller is widely used in plains, mountains, hilly dry land, paddy fields, orchards, etc.

With the corresponding machinery and tools can be pumped, power generation, spraying, spraying and other operations, but also can be towed trailer for short-distance transportation, micro tillage machine can be freely exercised in the field, easy for users to use and store, save the trouble that large agricultural machinery can not enter the mountainous fields, is the best choice for the majority of farmers and consumers to replace cattle farming.

Maintenance Due to the harsh working environment of the micro-tiller, maintenance is particularly important. In the work of the micro-tiller, due to the friction and vibration of the parts, the invasion of oil, mud and water will inevitably cause the wear and tear of the parts; Loose connections, corrosion and aging. As a result, the technical state of the micro-tiller deteriorates, the power decreases, the fuel consumption increases, the wear accelerates, and the faults continue to appear.

In order to prevent the occurrence of the above situation, it is necessary to strictly implement the maintenance system of "prevention is more important than cure, and maintenance is more important than repair".

Maintenance must be carried out in strict accordance with the cycle and content of maintenance. Liu Yongzhong, from Jinzhu Village, a sub-township township, reported that his machine was weak, burned the engine oil, and it was difficult to start, so he disassembled and checked: the oil in the engine gearbox had become muddy, and it was difficult to lubricate; The vents of the engine's radiators are all blocked, and the heat dissipation effect is poor; Cylinder liners, pistons are badly worn, and there is a lack of power.

Typical breakdowns caused by insufficient maintenance.

Summary. Hello according to your description, 1. First open the screws on the valve tightening device, so that the two-link adjustment valve is greatly relaxed; 2. Gently wrap the piston head of the two-rod adjustment valve with your hand, and adjust the piston head to the position where the suction valve is just open; 3. Quickly tighten the screws, then adjust the piston head of the valve with two rods, and adjust the piston head slowly until the valve position is controlled at idle; 4. Slowly adjust the thread until the valve position is correctly adjusted at idling; 5. The final adjustment is the slow rotation of the rotor, the default is to pull left and right, pull left and right when inhaling, and bounce back when exhausting, until it is just closed when idling; 6. Finally, adjust the valve, complete the adjustment, and remember to tighten the screws of the elastic device.

Hello according to your description, 1. First open the screws on the valve tightening device, so that the two-link adjustment valve is greatly relaxed; 2. Gently wrap the piston head of the two-rod adjustment valve with your hand, and adjust the live Wang Min plug head to the position where the suction valve is just open; 3. Quickly tighten the screws, then adjust the piston head of the valve with two rods, and adjust the piston head slowly until the valve position is controlled at idle; 4. Slowly adjust the thread until the valve position is correctly adjusted at idling; 5. The final adjustment is the slow rotation of the rotor, the default is to pull left and right, pull left and right when inhaling, and bounce back when exhausting, until it is just closed when idling; 6. Finally, adjust the valve, complete the adjustment, and remember to tighten the screws of the elastic device to trap the branches.

Gasoline micro-tiller valve can be used once after the valve is adjusted once after the cold machine is used after the lever is difficult to pull the card, can not ignite, please ask the master, each time the valve is adjusted, you can only use it once after the collapse of the silver is not able to pull it, adjust it once and use it once, use it once and adjust it again [crying silently] What is the reason for this

Sometimes the engine can be ignited by shaking it, which may be a problem with the transmission middle block assembly, or the poor contact between the pull rod and the transmission arm may cause the pull rod to not be able to pull, resulting in the problem that the pants can only be used once after each adjustment valve. In addition, it may also be that the valve is unstable or the valve adjustment is inaccurate, that is, the opening degree is too small, resulting in insufficient air flow, so that the lever cannot be pulled, resulting in the problem that the valve can only be used once after each valve adjustment. Check whether there is a problem with the above parts, and determine that the problem is repaired in a timely manner.

Ok thanks.

Does the valve imbalance need to be replaced.

If the valve is unbalanced, it may be that the valve spring is damaged, which will generally cause the valve stem to be non-messy in the predetermined position, which will affect the operation of the engine, and the valve plate and valve spring of the valve valve need to be replaced, so as to ensure the normal operation of the valve.

Do the poor contact between transmission arms and other components need to be replaced?

Generally speaking, if the transmission eyer arm forms build-up and poor tailing due to poor contact, it is recommended to replace the grinding bending boom. However, if the drive arm is worn out alone, then it may be possible to replace only the parts in it, rather than replacing the entire drive arm.

Summary. Hello, pro-cylinder-by-cylinder adjustment method: according to the cylinder ignition sequence, after determining the position of the piston of a cylinder at the top dead center of compression, the inlet and exhaust valve clearance of the cylinder can be adjusted; After adjustment, shake the crankshaft, and gradually adjust the valve clearance of other cylinders according to this method.

Two adjustment methods are adopted: the crankshaft is rotated so that the piston of the first cylinder is at the top dead center of compression, and the flywheel mark is aligned with the inspection hole engraved line, and the valve (refers to the order of the engine valve from front to back); Then shake the crankshaft one circle so that the six-cylinder piston is at the top dead center of the compression stroke, and then adjust the "plus two" (i.e. ) valves, which is actually a mnemonic adjustment. When adjusting, while tightening the adjustment screw, insert the valve stem end with a thick gauge and pull back and forth between the rocker arm to feel a slight resistance, and then check again until it fits.

The cylinder-by-cylinder method requires a large number of crankshafts to be rotated, and it takes a lot of time to check and adjust, but for engines with serious wear, it is more accurate to use the cylinder-by-cylinder method to check and adjust the valve clearance. It is more time-saving and labor-saving to adjust the valve clearance twice, but for different models, it is necessary to memorize different adjustable valve sequence numbers, and the model is complex, so it is difficult for maintenance personnel to remember.

Hello, I have seen your question, and I am sorting out the answer, please wait for a while Hello, pro-cylinder-by-cylinder adjustment method: according to the cylinder ignition sequence, after determining the position of the piston of a cylinder at the top dead center of compression, the intake and exhaust valve clearance of this cylinder can be adjusted; After adjustment, shake the crankshaft, and gradually adjust the valve clearance of other cylinders according to this method. Adopt the two-adjustment method:

Rotate the crankshaft so that the piston of the first cylinder is at the top dead center of compression, and the flywheel mark is aligned with the inspection hole engraved line, and the valve can be adjusted and the valve (refers to the order of the engine valve from front to back); Then shake the crankshaft one circle so that the six-cylinder piston is at the top dead center of the compression stroke, and then adjust the "plus two" (i.e. ) valves, which is actually a mnemonic adjustment. When adjusting, while tightening the adjustment screw, insert the valve stem end and the rocker arm back and forth with a thick gauge, feel that there is a light front to change the slight resistance for the rent, and then check again until it is suitable. The cylinder-by-cylinder method needs to shake the crankshaft many times, and it takes a lot of time to check and adjust, but for the engine with serious wear, it is more accurate to use the cylinder-by-cylinder method to check and adjust the valve clearance.

It is more time-saving and labor-saving to adjust the valve clearance twice, but for different models, it is necessary to memorize different adjustable valve sequence numbers, and the model is complex, so it is difficult for maintenance personnel to remember.