Checking and adjusting clearances in the valve drive mechanism

Checking and adjusting the clearances in the valve drive mechanism must be carried out at a coolant temperature above 35°C.

Remove the cylinder head cover being careful not to damage the gasket.

Turn the crankshaft with a wrench on the crankshaft sprocket bolt so that the intake and exhaust cams of the adjustable cylinder are facing up in the same position.

Warning. It is forbidden to turn the crankshaft by the fastening bolt: camshaft pulley, so as not to damage the toothed belt.

In this position, check the gaps with a flat feeler gauge between the lever and the back of the camshaft cam. To adjust the gap, turn the self-locking adjusting bolt with a ball head with a wrench to set the required gap on the probe.

Turning each time the crankshaft to the position for adjusting the thermal clearances of the valves, adjust the clearances of the remaining valves.

Clearances in the valve drive mechanism

Normal clearance between the lever and the back of the camshaft cam, measured with a feeler gauge, on a cold engine (after repair) is 0.15 mm for intake valves and 0.25 mm for exhaust valves, on a hot engine - 0.20 and 0.30 mm, respectively.