Vessel was built in '03. I haven't found reference to the auxiliaries manufacture date.
Yes, you are correct. Bottom end, top end, new turbo, LO cooler, air cooler plates and all new 6 heads (well 12 new heads as they have all been replaced). I may be missing a few bits as I wasn't on board when this was done.
Now you mention new LO pump, which it has had. We noticed that LO pressure is 5.6bar when cold and 5.3-5.4 when warm. In manual it states max working pressure is 5.3bar but again this is the same for both engines after overhaul. Before overhaul it was 5.2 cold, and 4.8bar once warm.
The new parts which connect to FW system have all been pressure tested ashore since overhaul, camera down the injector pockets. No water in cylinders.
As an update on progress.
We have asked the super if it is possible to send a water sample ashore to work out what is in the water. Combustion products, excess oxygen, iron oxide etc. This may help us narrow down the source of the problem.
And source a pressure testing kit
Cheers again Merlyn and all else who have contributed.