How to adjust the valve clearance of six-cylinder tin diesel engine?

Adjustment method of valve clearance of six-cylinder diesel engine;

(1) Uncover the blockage of the flywheel housing, turn the flywheel starting gear and slowly turn the diesel engine. When the pointer of the flywheel housing is aligned with the "0" scale line on the flywheel, the piston of the first cylinder (the front end is the first cylinder close to the fan) or the piston of the sixth cylinder is at the top dead center position, and the exhaust valve rocker arm of the first cylinder is toggled. If it is loose, it is the top dead center of the first cylinder compression. Tool: thickness gauge?

(2) Intake valve clearance: 0.3 ~ 0.35 mm Exhaust valve clearance: 3.35 ~ 3.4 mm Engine braking clearance: 0.5 ~ 0.55 mm?

(3) When detecting or adjusting the valve clearance, is the diesel engine cold (below 60℃)? Note: the measured clearance value is the correct value when the thickness gauge can slide between the intake valve bridge and the rocker ball seat and feel the adhesion resistance; Exhaust valve clearance also needs to eliminate the spring clearance of exhaust valve push rod. 13mm special socket wrench and screwdriver?

(4) The piston of the first cylinder is at the compression top dead center position. Check or adjust the intake valve clearance of cylinders 1, 2 and 4 (the intake valve is driven by a longer rocker arm and the exhaust valve is driven by a shorter rocker arm). Tighten the lock nut and check the valve clearance. ?

(5) Then turn the crank angle of flywheel 128 counterclockwise (that is, you can see the score line of "6, 1" cylinder valve clearance adjustment position on the flywheel) to adjust the exhaust valve clearance of the sixth cylinder. ?

(6) Install the ball nut of the sixth cylinder and the engine brake, and adjust the clearance of the engine brake. ?

(7) Turn again? 120 crankshaft angle, adjust the exhaust valve clearance of each cylinder in the order of 6-2-4- 1-5-3, install ball nuts and engine brake assembly, and adjust the engine brake clearance. Attention: When turning to 360 crankshaft.

Adjust the intake valve clearances of cylinders 6, 3 and 5 at the position of rotation angle (i.e. when the TDC line is seen again).

The function of the valve is specially responsible for inputting air into the engine and discharging exhaust gas after combustion. From the engine structure, it can be divided into intake valve and exhaust valve. The function of the intake valve is to draw air into the engine and mix it with fuel for combustion; The function of the exhaust valve is to exhaust the exhaust gas after combustion and dissipate heat.