Two major problems of tractors-difficult to start & fear of “oil” solution

Author:Ricdro

Analysis of the reasons for the difficulty of starting the tractor:

  1. The cylinder head nut is not tightened or the cylinder head gasket is damaged.

When turning the crankshaft, if there is a leaking sound at the joint surface between the cylinder head and the body, the cylinder head nut may not be tightened, or the cylinder head gasket may be damaged. If it is the former, it should be tightened as required. If it is the latter, when the cylinder head gasket is not damaged seriously, the asbestos line can be used to make up the damage, and when it is serious, replace the new mat.

  1. Air intake and exhaust valves leak.

There are two reasons for this type of air leakage: First, the valve clearance is too small, so that the valve is not closed tightly, and the valve clearance needs to be re-adjusted. The other is that there may be spots on the valve sealing cone surface, such as rust, carbon deposits, etc., and the valve closing is not strict. When checking, you can shake the crankshaft. If you hear the sound of in the air filter and the exhaust pipe, it means that there is air leakage in the intake and exhaust valves. The valve needs to be ground.

  1. The piston ring is excessively worn.

When the crankshaft is turned, the inside of the body (such as the low shell of the oil) has a leaking sound, and most of the reasons are on the piston ring. Some clean engine oil can be added to the cylinder. If the compression force is increased after the addition, the piston ring should be replaced.

  1. The piston ring opening is moved to the straight line (commonly known as the opposite port), or the piston ring is stuck in the ring groove due to the carbon deposit, and the pressing cylinder cannot be ejected.

The phenomenon is that when the crankshaft is rotated, there is a leaking sound in the crankcase. The piston ring should be removed to remove carbon deposits. If the ring is moved to a straight line, the position at each opening should be evenly distributed, but the direction of the piston pin must be avoided.

  1. The injector fixing bolt is loose.

Air leaks at the injector on the cylinder head and should be tightened.

In addition, the bearing bush or the copper sleeve is seized so that the crankshaft cannot be rotated; the piston is reversed or the air filter is clogged, and the diesel engine cannot be started, which is also a cause of difficulty in starting the tractor.

Many parts of the tractor must be lubricated for lubrication and cooling, otherwise it will go wrong. However, there are some parts that are most afraid of oil. If you stick oil, it will affect its working performance, and even it will immediately become faulty. These parts mainly include:

  1. Sticking oil or butter between the carbon brush on the generator and the motor and the rotor will cause a power barrier that will prevent it from working properly.
  2. If the radiator is stained with oil or butter, it will absorb a lot of dust and sand, affecting the heat dissipation effect and increasing the water temperature.
  1. Rubber products such as tires, triangle belts, and water pipe joints, such as oil, gasoline, diesel, butter, etc., will age and deform, and the texture will expand and accelerate damage.
  2. The filter element of the dry paper air filter should not be oily. Otherwise, after the dust and sand are stuck on it, it will be dead, lose the gas permeability, and then increase the intake pressure of the cylinder, so that the cylinder is insufficiently inhaled. Causes power to drop.
  3. The friction plates of the dry clutch and the brake band of the brake need to be dry and clean. If the oil is stuck, it will slip, affecting the power transmission or causing the brake failure, and even causing an accident.