98 dodge neon 2.0 no timing mark on camshaft sprocket. How can I set timing ?

Mikbek---You're absolutely right--it was the tiniest little circle, tucked inside away from where the marks would line up!!! It has bright gold paint now! Thank you so very much. This car might run again, thanks to you, Mikbek.

Make sure you hand turn it to see if after one complete rotation the marks still line up. Sometimes u can b one tooth off!