Mark on the front of the camshaft sprocket
Marks on the crankshaft pulley and oil pump housing
The crankshaft, camshaft and intermediate shaft sprockets are driven by the timing belt and rotate in phase.
If the sprockets are out of phase, the valves will touch the pistons as the crankshaft rotates.
The top dead center is taken to be the highest point reached by piston N1 during the compression stroke.
By aligning the synchronization marks, you set piston N1 to TDC and ensure the rotation of the sprockets is in phase.
The mark on the rear of the camshaft sprocket aligns with the mark on the inner timing belt cover.
[This article was copied from the website Audimanual.ru]