White smoke out of boat exhaust

Re: White Smoke out the exhaust Pull the spark plugs and see if there is any water in the cylinders. F115B four stroke: excessive white smoke. If you the white smoke consistently comes out and the sweet odor smell is present, then it is definitely a problem with your coolant leaking.

In an outboard , though, it may mean something other than a tow to shore and an expensive repair. Marine diesel white smoke from exhaust. Lets face it, any time we see smoke coming out of our engine we start to see dollar signs flash before our eyes however there are a number of things that could cause your engine to smoke. The white smoke is the result of normal condensation which builds up inside the exhaust system.

White smoke can be a big problem or not, depending on the thickness. White vapor from the exhaust can be as simple as a clogged exhaust manifol water fitting or exhaust elbow especially if the engine is performing properly. This may occur, for instance, because of restrictions in the injected elbow. Technically, the white color is caused by the light-scattering characteristics of the re-condensed droplets of fuel (un-burned or partially burned) larger than one micron.

As note white smoke is generally water or coolant being heated or combusted. Since you are closed system coole your reservoir level would be diminishing if this was from coolant. With a good nose, we can generally smell heated Ethylene Glycol that is mixed in with the exhaust. Why is White Smoke or Steam Coming from Exhaust ? A small amount of water is produced as a normal bi product of the combustion process and until the exhaust system warms up the water evaporates and can be seen as steam.

This winter i have just done the ordinary things, new oil and filter and of course a new fuelfilter. One cause of white smoke from the exhaust might be the engine leaking coolant. If the engine leaks coolant, it will be burned by the heat of the engine and then come out as smoke from the exhaust. A problem with antifreeze might also be causing white smoke to come from the exhaust. Specifically, the starboard motor.

Recently took a 7mile trip from Chattanooga, TN to Hendersonville, TN. Re: white smoke coming from exhaust It sort of smells like gasoline. It is raw water cooled. The air temp was around and the water temp was around 80. I have owned this boat for around three years.

THis is the first time it has ever smoked. And it points to problems in the fuel supply. Read over these causes and cures. Dirty fuel When cruising in foreign ports, you may find that you need to strain fuel before it enters your fuel tank. Somewhere you are burning water.

Somehow it is getting in to the cylinder and burning in there causing white smoke. Pulling the plugs and having a look is probably a good idea. Mercarb What causes white smoke ?