1. When the compression top dead center of 1 cylinder (8 120f cylinder is 5) is found, according to the expression method, for the adjustable valve, use a feeler gauge to block the gap between the end of the valve stem and the head of the valve rocker arm, so that the feeler gauge can move back and forth and plug it gently, otherwise it needs to be adjusted.

2. The specific adjustment method is as follows: firstly, loosen the lock nut on the rocker arm slightly, then turn the adjustment screw with a screwdriver as needed to make the lower (right) clearance smaller and the upper (left) clearance larger until the rocker arm and the valve contact with the thickness gauge and can still move, then use the screwdriver to adjust the screw, tighten the lock nut, move the thickness gauge, and turn the crankshaft for re-inspection until the valve clearance values are all correct.

Extended data:

Diesel engine is an engine that burns diesel oil to obtain energy release.

It was invented by German inventor Rudolf Dissel in 1892. In memory of this inventor, Diesel engine is represented by his surname diesel, and Dieselengine is also called diesel engine.

trait

The advantages of diesel engine are large torque and good economic performance. The working process of diesel engine has many similarities with that of gasoline engine, and each working cycle has to go through four strokes: intake, compression, work and exhaust.

However, because the fuel used by diesel engine is diesel, its viscosity is higher than that of gasoline and it is not easy to evaporate, but its auto-ignition temperature is lower than that of gasoline. Therefore, the formation and ignition mode of combustible mixture is different from gasoline. The main difference is that the mixture in the cylinder of diesel engine is compression ignition, not ignition.

Baidu encyclopedia-multi-cylinder diesel engine