I bought a used engine (AEIO 360 B1H) with about 150 hrs a little while ago. The seller told me that he found some metal shavings in the screen, suggested that cam and lifters may be damaged. Pulled #3 cylinder and cam and lifters are in good condition. Pulled #2 and possibly found the culprit. Actually, I found two of the push rods have similar marks. Replaced all the shrouds even with a hint of damage. I am hoping this is what created metal shavings.
While it looks somewhat bigger in the picture, the dent in the shroud is barely visible.
![IMG_1225.JPG IMG_1225.JPG](https://vansairforce.net/data/attachments/32/32445-5845e8e0c0076f5b716a15921e7a1a81.jpg)
![IMG_1226.JPG IMG_1226.JPG](https://vansairforce.net/data/attachments/32/32446-981b345156905780b1dcd8a2097b2c5f.jpg)
While it looks somewhat bigger in the picture, the dent in the shroud is barely visible.
![IMG_1225.JPG IMG_1225.JPG](https://vansairforce.net/data/attachments/32/32445-5845e8e0c0076f5b716a15921e7a1a81.jpg)
![IMG_1226.JPG IMG_1226.JPG](https://vansairforce.net/data/attachments/32/32446-981b345156905780b1dcd8a2097b2c5f.jpg)