Egine is being ice-cleaned

P1000645 by Kristof Beheyt, on Flickr
Some cilinder parts need to be cleaned a little more:

P1000651 by Kristof Beheyt, on Flickr
After opening the motor I saw this was broken :-(. Could this be restored? Or should I trie to find a new one and what has happened with the broken part...?

P1000658 by Kristof Beheyt, on Flickr