nveater
Veteran Member
- Joined
- Nov 4, 2021
- Messages
- 69
- Vessel Name
- Pathfinder
- Vessel Make
- Mainship Pilot 30
I have a Cummins 6BT-5.9 210 hp engine (1999) in my Mainship Pilot 30. When my engine goes over 2000-2100 rpm I get white smoke. throttle back and the smoke goes away. Is it steam or smoke ? I don't know while it seems to dissipate quickly, the smoke does appear to have some "body" to it. This is my third year with the boat- the surveyor and later my "mechanic" told me it was steam and not to worry, but I am worrier. The engine does not visibly smoke on start up nor at lower rpms. I have a fairly extensive fuel filter system which I changed this year, replaced the impellor last year- no visible loss of coolant, regular oil changes- engine has just over 2000 hours- WOT engine temp has increased by about 5-7 degrees from last year going from about 184 to 190 (by infra red gun). Engine seems to run smooth- any thoughts about what I should check injectors, turbo, aftercooler raw water cooling system ? As a note the way my boat rides half the external exhaust is under water. Appreciate your comments