Fighterpilot
Senior Member
- Joined
- Apr 17, 2011
- Messages
- 380
Finally ready to go snapper fishing. Loaded up with 5 souls on board, 4 ice chests, full fuel, 15 fishing poles, food, etc and headed for the Gulf. 3 hours later after running at 15 knots with the 34Californian LRC and twin 3208sNA we are out 12 miles in the Gulf and the starboard engine has loss of rpm and is putting out dark gray smoke. RPM now 2000. Been running 2400rpm and the water temps 178 degress or so.
Throttle back and I go down to get into the engine room from under the ladder and when I open the door engine room is full of smoke and I see smoke and water pouring out of the other engine's inboard riser at the 90 degree elbow connection. Brand new 90 degree 5 inch rubber elbow which connects exhaust system to that riser has split. I note this because it may be germain to the other engine problem, that is maybe exhaust smoke from port engine has clogged air filter on starboard engine.
What can cause engine to suddenly lose rpm and start producing dark grey smoke. Not blue, not white, although there is a little white while running which I conclude is steam since it disapaites rapidly. Temps holding steady at about 178 degrees for the whole time.
What is grey smoke as compared to blue smoke? A fuel filter clogging up would cause a reduction in rpm but would it also casue smoke? I will change air fliters just in case that is problem but where do I go from there? Hire a mechanic??
We ran home on that engine only, at 2000 rpm, a little grey smoke and 7 knots. 6 and 1/2 hours. Didn't have an elbow on board to fix the other engine, although we did patch it up with a rubber sleeve, emergency tape and duct tape just in case. Aw the joys of boating.
Throttle back and I go down to get into the engine room from under the ladder and when I open the door engine room is full of smoke and I see smoke and water pouring out of the other engine's inboard riser at the 90 degree elbow connection. Brand new 90 degree 5 inch rubber elbow which connects exhaust system to that riser has split. I note this because it may be germain to the other engine problem, that is maybe exhaust smoke from port engine has clogged air filter on starboard engine.
What can cause engine to suddenly lose rpm and start producing dark grey smoke. Not blue, not white, although there is a little white while running which I conclude is steam since it disapaites rapidly. Temps holding steady at about 178 degrees for the whole time.
What is grey smoke as compared to blue smoke? A fuel filter clogging up would cause a reduction in rpm but would it also casue smoke? I will change air fliters just in case that is problem but where do I go from there? Hire a mechanic??
We ran home on that engine only, at 2000 rpm, a little grey smoke and 7 knots. 6 and 1/2 hours. Didn't have an elbow on board to fix the other engine, although we did patch it up with a rubber sleeve, emergency tape and duct tape just in case. Aw the joys of boating.