nickdick
New member
After a complete de-coke and rebuild of my Volvo 2 cyl. MD7a and about 40 hrs use the gasket has burnt through to one of the water gallery holes about 15mm from the cylinder wall. Bucklers Hard Boat Builders did the rebuild so don`t think it`s shoddy work. Any ideas about how this can happen. Lots of water out of the back and no reason to think it`s over heated.