do both ends of the cam chain go over the roller, or 1 on each?

[kilabeez0]

85 110. i rebuilt the head and i know it's a stupid question, but putting the round roller in the jug, does it go in between the chain or does the whole chain sit over it? i'm guessing it goes in the middle, but i just want to make sure:beer

[atctim]

The roller goes in the middle - between the chain. Happy re-building!