Bayliner motor yacht Hino 135 hp-gctid814229

[casca]

hello my name is Lon. im trying to help my parents with their boat . it has the Hino WO4T engines in it, my understanding is they are 135 hp not 150 hp . the problem ive encountered is Oil in the coolant ? a lot of black oil, is this head gasket problems or oil cooler problems / or what ? please help

[brad4550]

Hi Lon

This happened to a buddy's Hino...turned out to be the oil cooler just my 2 c worth

Good luck Brad