What is the adjustment method for single-cylinder valve clearance in diesel engines?

[MacElijah]

Adjustment method for single-cylinder valve clearance in diesel engines: 1. Before adjusting the valve clearance, first remove the cylinder head cover. Rotate the crankshaft to align the timing mark on the flywheel with the 0 scale line. At this point, cylinders 1 and 6 of the diesel engine are at top dead center; 2. Identify the cylinder at top dead center at the beginning of the expansion stroke. Slightly rotate the crankshaft and observe whether both the intake and exhaust valves are stationary; 3. Adjust the valve clearance. Use a wrench and screwdriver to loosen the lock nut and adjusting screw on the rocker arm. Insert a feeler gauge of the specified thickness between the rocker arm and valve, then turn the adjusting screw for verification. When the rocker arm and valve are in contact with the feeler gauge but the gauge can still be moved slightly, tighten the nut. Finally, recheck by moving the feeler gauge again; 4. After adjusting the valves, rotate the crankshaft 360 degrees and complete the valve clearance adjustment using the two-step adjustment method.