Wartsila’s User Group › Forums › General › Cracks found in the piston crowns This topic contains 1 reply, has 2 voices, and was last updated by Michael 1 month, 3 weeks ago. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts November 12, 2018 at 1:32 pm #1933 SPCSParticipant All, We have W18V46 engines and we found cracks in de the piston crowns near the bolts. Does anyone have an idea what this could be. February 28, 2019 at 3:14 pm #1970 MichaelParticipant Hi, do you know who is the manufacture of the piston crown? Can you reveal an update? Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic.