Attention! Turn the crankshaft only clockwise (in the direction of rotation of the shaft) for the alternator drive pulley bolt. Do not turn the crankshaft by the camshaft pulley.
Setting the piston of the first cylinder to the TDC position of the compression stroke is necessary so that when carrying out work related to the removal of the camshaft drive belt, the valve timing is not disturbed.
Set the TDC according to the marks on the camshaft pulleys, since when installed according to the mark on the generator drive pulley, the piston of either the first or fourth cylinder may be at TDC. Having set the TDC on the camshaft pulley, make sure that the marks on the alternator drive pulley or the crankshaft pulley match. If they do not match, then the installation of the valve timing is violated, in this case, remove the camshaft drive belt and turn the crankshaft until the marks match.