Adjustment method of valve clearance of three-cylinder diesel engine for help

Cylinder-by-cylinder adjustment method: according to the ignition sequence of cylinders, the gap between the intake valve and the exhaust valve of a cylinder can be adjusted after determining the compression top dead center position of the piston; After adjustment, turn the crankshaft and gradually adjust the valve clearance of other cylinders according to this method.

The cylinder-by-cylinder method requires the crank to rotate the crankshaft more times, and the inspection and adjustment time is longer. However, for the seriously worn engine, the cylinder-by-cylinder method is more accurate to check and adjust the valve clearance. Adjusting the valve clearance twice saves time and effort, but it is difficult for maintenance personnel to remember the different adjustable valve serial numbers of different models, which is more complicated.

Matters needing attention in the use of three-cylinder diesel engine

Diesel engines are powerful and fuel-efficient. Diesel engines with the same displacement are much more powerful than gasoline engines, and their fuel consumption is also very low. However, the diesel engine must not run out of diesel before refueling, because in this case, the engine will idle and suck in air, which will seriously damage the engine.

Idle running for a long time will reduce the quality of fuel injection atomization and accelerate the early wear of cylinder wall. Because atomization quality is directly related to injection pressure, injector aperture and camshaft speed. Because the diameter of the injector is unchanged, the atomization quality of fuel depends on the injection pressure and camshaft speed.