Found pieces in my oil sump

[misterY]

Hello,
I found some pieces in my oil sump while cleanig it. Can someone identify them? Here is a picture of them:

 

[vocky]

They are from the balancer chain tensioner

 

[misterY]

Thanks vocky. Thats from my daily driver Astra engine. Engine still running. Have to open the chain cover tomorrow to see what's going on there...