timing belt marks and how to replace the timing belt?

Hello,

When the timing belt gets replaced it is critical to set the timing correctly by lining up the marks of the cam shafts.
Failure to do so can prevent the engine from starting or can run rough.

https://www.2carpros.com/articles/how-a-timing-belt-works

I have included the diagrams for the timing marks as well as the belt and sprocket replacement procedure.

Please let me know of any questions.
Thank you.