OCC Forums

Oil rejected by intercooler

https://forum.oceancruisingclub.org/Topic4471.aspx

By Michel.Tabusse - 18 Jul 2018

Hi,
In today's engines, oil vapors (that could create too much pressure in the carter) are sent back to the air admission, then condensated in a so-called intercooler. The intercooler then rejects (small quantities of) oil into the bilge. No atmospheric pollution, that's OK. My question is : how much oil rejection is tolerable from the intercooler, for a young Volvo D2-75 engine (less than 1000 hours) ? When do I need to be concerned by a potential problem in the lubrication system ? Does anybody have insights or similar experience ?
Thanks / Michel on Velvet.