Metal ball found after timing chain replacement – camshaft bridge question

toomanybuttons

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Hi guys,

I replaced the timing chain and, when reinstalling the camshaft bridge, I noticed this small metal ball on the floor. I’m not sure if it came from there or not. I disassembled the camshaft bridge again, but I still can’t tell. In the picture, I marked in green that nothing seems to be missing from that area. In red, on the inside, there is a hole/channel that leads towards the camshaft. The ball I found is smaller than the two visible ones in the picture, and it fits into that channel. Should that channel have one ball, two balls, or none at all?

WAUZZZF56KA037598 - Audi A5 2019 45 TFSI MHEV
 

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