When I take my boat on long rides, it will start smoking (white smoke) quite a bit at some points - I am not sure if it is steam or smoke, but when I turn the boat off for a second and start it back up it won't be smoking anymore - I understand this could be a cooling issue, or it could be dirty gas - how can I diagnose this. The boat seems to be running at around 185 degrees.
2007-06-22 05:01:42 · 6 answers · asked by DDrew 3 in Cars & Transportation ➔ Boats & Boating
White smoke can indicate a couple of likely problems. It could be unburned, raw diesel fuel and you would be able to smell it very easily and notice a sharp decrease in engine performance and even poor idleing and harder starting. This could be from a bad injector, fuel pump or low compression. White smoke can also be steam from the exhaust. Your temp is running a bit on the high side and this is the most likely candidate. Are you losing engine coolant? Is the oil milky? if not you can check your thermostat and make sure your fresh water pump is good. I would bet the problem lies in your raw water system. Have you cleaned the sea strainers? Is the seacock clear of obstructions? Replaced the raw water impeller? Have the heat exchangers and marine gear oil coolers been cleaned out. Older engines get a coating in the exchanger tubes in time that slows down the heat transfer through the tubing. Start with the simplest first and go from there. Good luck.
2007-06-22 05:23:52 · answer #1 · answered by mark t 7 · 2⤊ 0⤋
You could have a injector weeping when you shut it off it drips fuel in the cylinder dilutes the oil when you state it smokes quits after a while.It runs on diesel not gas? I have twin 3208ta cats when you starts them it bellows white smoke oil. I put air/cept no more smoke.Pulls a vacuum on the crank case.
2007-06-22 13:51:27 · answer #2 · answered by Anonymous · 1⤊ 0⤋
That's a bit difficult to diagnose, depending on your exhaust type.
White smoke from diesel equates to water in the fuel, which is bad.
HOWEVER, if you have a water/exhaust system, wherein the exhaust exits via a Vetus or similar water reservoir, determining if you indeed have white smoke is really, really hard.
Its probably easier to drain your diesel tank completely, replace all fuel filters, and add some diesel fuel conditioner/anti-water additive.
2007-06-22 15:10:34 · answer #3 · answered by k s 2 · 1⤊ 1⤋
White smoke = water.... Either a leaking head gasket, or less likely water in the fuel... Water in the fuel would probably make it very hard or impossible to start. Check your oil... if it's milky, then there is an internal coolant/oil leak...
2007-06-25 21:59:49 · answer #4 · answered by squeezie_1999 7 · 0⤊ 0⤋
Maybe sucking water
2007-06-22 12:08:07 · answer #5 · answered by gandolphus 3 · 0⤊ 2⤋
it may be from oil
2007-06-22 12:05:29 · answer #6 · answered by Anonymous · 0⤊ 2⤋