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Old 21 January 2011, 12:31   #1
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Evinrude 200hp E-tec - what does white smoke mean?

I work for a dive centre running a 10m Humber with twin Evinrude 200's.

One of the engines has a lot of white smoke being emitted even when warm. Wondered if anyone knew what this might be a sign of???

Any help appreciated.

Cheers.

J.
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Old 21 January 2011, 13:03   #2
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White smoke is steam. Impeller change? Water intake obstruction? The electronics on those engines would tell you if there was an overheat problem. Usually it would be nothing to worry about but it's strange that one is doing it and not the other.

Are the telltales both flowing equally? It wouldn't hurt to check the impeller.
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Old 21 January 2011, 13:38   #3
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Ah ok. That had crossed my mind but it is really dense and looks more like smoke than steam.

The telltale flows more strongly on the engine WITH the steam problem which also confused me.

Yeah I'm not worried from that point of view as I'm sure the electronics would make me aware of a problem before any serious damage occurs.

Water intake seems to be clear. Might give the impellor a check. Easy to find???

Thanks.
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Old 21 January 2011, 13:49   #4
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Hi,

You might like to check out www.etecownersgroup.com. They're even more knowledgeable than us etec owners on here. Ours smokes a fair the whole time, and expecially when having been run hard for a while then slowed to idle. I don't think it's anything to worry about
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Old 21 January 2011, 15:20   #5
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Quote:
Originally Posted by gotchiguy View Post
Hi,

You might like to check out www.etecownersgroup.com. They're even more knowledgeable than us etec owners on here. Ours smokes a fair the whole time, and expecially when having been run hard for a while then slowed to idle. I don't think it's anything to worry about
Thanks a lot for that. Will check it out.

J.
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Old 21 January 2011, 16:22   #6
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Hi Jonny
Sounds like you might have a problem with water flow through the block, maybe salt build up, or thermostate fault most of the water from the impellor is trying to leave via the tell tail hense the rise in pressure.

HTH
Ian
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Old 21 January 2011, 16:57   #7
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Thanks for that Ian.

You lost me at a rise in pressure?
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Old 21 January 2011, 17:40   #8
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Most of the water goes around the engine and out of the exhaust, (through the prop or the high level outlets) if you block these outlets the water has no where to go ( or through a very small hole ) so it will build up a back pressure, hense the rise in pressure and a stronger tell tail.

Do you opperate out of QAB ???
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Old 21 January 2011, 17:59   #9
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Ah I see, that makes total sense. After all the tell tail is only an indication that the engine is being cooled. The tell tail on the other engine is much weaker.

Yes I do. Working for Plymouth Diving Centre. I see you're local.

J.
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Old 21 January 2011, 18:06   #10
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It is not an indication that the engine is being cooled, it indicates that there is water being pumped by the impellor and on most engines indicates that water has made t to the top of the engine.

I am a mobile marine engineer, i do work for Plymouth Power boat and many others in and around Plymouth.
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