I spoke with my neighbor at the marina who explained that what appeared to be white smoke was steam. A couple of months back, when I first got the boat, I wasn't getting any water out of the exhaust so I had a mechanic come down and basically pressure flush the engine. In addition, he changed the oil and repaired the exhaust. Water started coming out and not knowing any better, I thought that had fixed my overheating problem. Water still comes out at the same rate it did then but according to my neighbor, there still isn't enough water coming out to cool the engine. At this point, I would have to agree. One thing that was suggested by a few people on the board was to do a diluted muriatic flush to get out any deposits that may have been left. I read several articles about it; everyone agreed that it was safe and very helpful, but because everything seemed okay I didn't do it. I'm pretty sure that is my next move. Thank you all again for your help, I really appreciate being able to come to a place where everyone is so willing to help.
Sincerely, Michael --- In [email protected], "The Emmerichs" <j...@...> wrote: > > Michael, > > > > I did not pick up on the last paragraph in your message. The white exhaust > smoke is not something I have ever seen on my boat. I get a little > blueish/black smoke when I start the engine but once it is running, nothing. > I have never seen, that I remember, white smoke coming from any of the > stacks on all of these diesels that are on the road, trucks, busses, > pickups, etc.. I don't think the exhaust being under water has anything to > do with white smoke. I would find a diesel mechanic in your area and talk > to him. I'm not an authority on diesel engines. > > > > The manual on the engine states the operating temperature should be between > 160 and 190 degrees. Yours is running over the boiling point of water. The > other thing to check is the thermostat. The engine is a Kubota and your > local Kubota dealer should stock thermostats. The engine model number is on > the bottom of the dipstick. > > > > I second Jack Brennan's message that you probably should not run the engine > until you get this sorted out. New engines are expensive. > > > > Good luck, hope all of this gets sorted out, > > > > John Emmerich > > C27TR #5874 > > Louisville, KY > > > > From: [email protected] [mailto:[email protected]] On Behalf Of > mlong9876 > Sent: Saturday, November 21, 2009 6:01 PM > To: [email protected] > Subject: [IC27A] New Question--Engine Oil Alarm > > > > > > It looked like the board needed new questions but more importantly, I need > answers, so here goes.... > > :-) > > There wasn't much wind today so we came back to the marina under power for > the last 30 minutes or so. The engine (5411) was reading a little hot (220 - > 230) but not a big deal. As we came closer to the marina, I powered down a > lot, went into neutral and then heard the engine oil alarm. I heard it every > half second (not a consistent sound like when I prime it) and then I put it > in gear. The sound was still present and still inconsistent. I made it into > my slip without a problem. I checked the oil, but it wasn't low. > > After cleaning up, I started the engine to try to replicate what I heard but > could not. I had it tied securely and put it into gear and kept it there for > several minutes at around 2200 RPMs, then revved it in neutral for a while, > put it back under load but could not make it happen again. Any ideas? > > Also, unrelated (or related...I don't know); when moving forward under > power, is everyone's exhaust under water and if so, is it white because of > the outside temperature (low to mid 50's), is something wrong or is that > normal? > > Thanks in advance, > > Michael > > > > > > [Non-text portions of this message have been removed] >
