I have read all i could about lost motion assemblies and im still a little confused. I got an oil change a few days ago to a thicker weight oil (5w-20 to 5w-30), not a huge difference but now, when cold, they make noticeable ticks in a very uneven rhythm. They go away when warm like i figured. My questions are: How many are there and how long on average to replace? Could it damage any of the valve train? Could the oil just need some time to settle in? Sorry if any of this sounds ignorant but i have searched around and the haynes manual isnt helping too much more. Thanks.