AO Silver Member
Join Date: Apr 2002
No. Not neccesarily. It depends on where the leak is. In some cases, with just a minor leak, the combustion pressure can escape into the cooling system, but the pressure in the cooling system being lower (0,7 bar) water wont enter the combustion chamber. In other cases, the gasket might leak near an oil return channel, or near the oil pressure channel, leading to water in the oil or vice versa.