Wartsila’s User Group › Forums › 50 SG Engine › Bubbling in Coolant Expansion Tank › Reply To: Bubbling in Coolant Expansion Tank
March 4, 2019 at 2:39 pm #1982
We had a similar issue with on of our 18V50DF engines. We tried hydro etc without luck. We ended up pulling every head and eventually found the culprit – a leaking head gasket. I’ve heard of no better method unfortunately and the Wartsila folks simply said to pull all the heads.