How to adjust the valve clearance of single cylinder diesel engine?

The valve clearance of horizontal bar diesel engine ensures the tight closing of intake valve and exhaust valve. When the valve is completely closed, the clearance between the end of the valve stem and the rocker arm is the valve clearance. During the use of diesel engine, parts are worn, screws are loose, cylinder head is disassembled, etc. , will lead to the valve clearance gradually become larger. If the gap is small, the parts will expand and stretch when heated, which will lead to the valve not being closed tightly, the power of the diesel engine will drop, and the high-temperature gas will be exposed from the gap, resulting in the valve burning out. If the valve clearance is too large, the valve will collide with the valve seat and other parts, thus shortening the valve life, prolonging the valve opening time and affecting the air alternation in the cylinder. \x0d\ Check the adjustment method: \x0d\ 1. When the diesel engine is in a cooling state, remove the cylinder head cover; \x0d\2。 When rotating the flywheel, align the dead center line on the flywheel with the pointer line on the water tank, which is the dead center position of the piston in the compression stroke; \x0d\3。 When adjusting the gap between the intake valve and the exhaust valve, rotate the crankshaft, measure the gap, and adjust if there is any change. \x0d\4。 Measure the clearance between the end of the valve stem and the rocker arm with a thickness gauge. If the thickness gauge cannot be inserted or there is still a gap after insertion, please adjust the valve clearance again. The normal clearance of S 195 diesel engine in cold state is 0.3 ~ 0.4 mm, and the clearance of exhaust valve is 0.4 ~ 0.5 mm. \x0d\5. Loosen the lock nut for adjusting the valve clearance, twist the adjusting screw, and measure with a thickness gauge until the measured value is consistent with the specified value. Tighten the lock nut while keeping the adjusting screw still.