Hi All! Recently my MF165 perkins motor started to knock so I decided to tear it apart to find a entire sleeve broken in the oil pan, at that point I decided to do a complete rebuild and I removed all sleeves and pistons. Upon taking a close look at the cylinders I noticed that the cylinder where the sleeve broke apart has a small chip taken out of the lip that the sleeve sets on. I have had two opinions both of which from experienced diesel mechanics, one being that it will be fine with a new sleeve installed. And the other saying that the damaged bore should be machined. Whatre your opinions on this? If I install a new sleeve on top of this will it cause the sleeve to fail? With the minimal tolerance for the sleeve to set into the block would machining be an option? Heres a picture, it is hard to see but I circled it in red.