How to Adjust the Valve Clearance of Tiggo 3?
1 Answers
Tiggo 3 valve clearance adjustment method: 1. Preheat the engine until the coolant temperature reaches 80 degrees Celsius, open the timing mark inspection hole on the clutch housing and the cylinder head cover, and ensure that the cylinder head bolts are tightened to the specified torque; 2. Rotate the crankshaft to align the 0 mark on the flywheel with the mark line on the clutch housing, confirm that the curved surface of the intake and exhaust valve rocker arms of the first cylinder is in contact with the base circle of the camshaft cam, that is, the first cylinder piston is at the compression top dead center, and the valves are in the closed position at this time; 3. Loosen the lock nut 2 of the adjustment screw 1, use a screwdriver to turn the adjustment screw so that the gap A between the lower end face of the screw and the upper end face of the valve stem 3 is the specified clearance value, keep the screwdriver still, tighten the lock nut to the specified torque, and then use a feeler gauge to insert into gap A for rechecking. This way, the intake and exhaust valve clearances of the first cylinder can be adjusted; 4. Rotate the crankshaft clockwise. For a 4-cylinder engine, every 180 degrees of rotation, the valve clearance of the next firing cylinder can be adjusted in the ignition order of 1, 3, 4, 2. For a 3-cylinder engine, every 240 degrees of rotation, the valve clearance can be adjusted in the ignition order of 1, 2, 3.