Wartsila’s User Group › Forums › 50 SG Engine › Piston Seizure 50SG Engine. This topic has 0 replies, 1 voice, and was last updated 4 years, 1 month ago by Anonymous. Viewing 1 post (of 1 total) Author Posts October 25, 2019 at 9:25 pm #2166 AnonymousInactive Has anyone experienced in 50SG engines piston seizure? We recently had 2 incidents in different engines with very similar findings. Root cause is under investigation and can provide more details when we get them. B.R Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In