Wartsila’s User Group › Forums › 50 SG Engine › Starting air valve problem. This topic contains 0 replies, has 1 voice, and was last updated by email@example.com 1 year, 1 month ago. Viewing 1 post (of 1 total) Author Posts November 20, 2017 at 9:05 am #1751 firstname.lastname@example.orgParticipant Hello guys! Has anyone ever had recurring problems with the starting air valve? Here on our site we are having frequent locking problems in the open position, causing the starting air to lose pressure. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.