Hello friends, I received valuable advice regarding my ignition issues and got my old A4 working nicely, so I’m back with something else. As the title says, I have white smoke coming from my exhaust. Quite a bit of white smoke. More than should be coming from a carborated engine...I think. I draw my comparisons from other carborated vehicles I own(ed). Couple things to note: smoke increases as I throttle up, has been noticeable before the ignition issues (now taken care of), has a very slight” exhaust” smell, I’m not fouling any plugs and the engine runs strong. Should I be concerned. Opinions please.
White smoke from the exhaust. Is this a problem?
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White smoke from the exhaust. Is this a problem?
Last edited by pearsontriton28; 06-25-2019, 04:14 PM.Tags: None
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Originally posted by ndutton View PostIs it really smoke or maybe steam? Have you previously observed a carbureted engine with a wet exhaust?
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Originally posted by roadnsky View PostDo you still have a good flow of water out of the exhaust?
Where is the boat located? What's the approx water temp?
I’m not sure what my water temp is. Waiting for my temp gauge in the mail. Lake water temp is *66.Last edited by pearsontriton28; 06-26-2019, 02:51 PM.
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Do you have "standpipe/water -exhaust mix" or water lift/muffler exhaust system. The former yields a great deal more steam/white smoke than the latter. I have a stand pipe setup and some fellow boaters have been for years [decades really] have been warning me that I have smoke coming out of the exhaust.
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Originally posted by Sam View PostDo you have "standpipe/water -exhaust mix" or water lift/muffler exhaust system. The former yields a great deal more steam/white smoke than the latter. I have a stand pipe setup and some fellow boaters have been for years [decades really] have been warning me that I have smoke coming out of the exhaust.
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Sounds like you have some white exhaust steam [exhaust & water are mixing in the stand pipe just prior to exhaust line] that might hover around the aft exhaust when you still or moving slow. Not sure of your engine age or thermostat setup but if it is an "early model" with a Dole tstat then by design a little water is leaking past the housing to stand pipe even when water is directed thru the block. This tends to cool the raw hot exhaust on warm up producing a fair amount of steam.."white smoke".
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