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Old    CONSIGLIEREG8R (consigliereg8r)      Join Date: Aug 2009       05-30-2010, 6:32 AM Reply   
Yesterday my son went wake surfing the ballast was loaded and he had 14 people on the boat. They said as they powered up the boat emitted a lot of exhaust-- I watched one time and the exhaust smoke was white. I checked the oil--it looks fine. I think it was just from the hot exhaust being so far under the water. Thoughts?
Old    Clint (ttuclint)      Join Date: Sep 2003       05-30-2010, 7:43 AM Reply   
Are you sure this wasn't steam? Might wanna check the impeller.
Old    882001 (882001)      Join Date: Nov 2003       05-30-2010, 9:17 AM Reply   
steam disapates after 5 feet or so smoke does not
Old    Todd Weatherill (floatingguru)      Join Date: May 2010       05-30-2010, 10:55 AM Reply   
Checking poo of an animal is an old vets way of telling you its health. The same holds true for boats or cars exhaust. In a car or boat, vapor or smoke coming from the exhaust in different colors mean different things. Here are a few possibilities for the white plumes.

Transmission fluid may be entering the intake manifold through vacuum modulator.
The Fix: Replace vacuum modulator
Cylinder head gasket(s) may be bad.
The Fix: Replace cylinder head gasket(s).
Cylinder head(s) may be warped or cracked.
The Fix: Resurface or replace cylinder heads. (Resurfacing is not a DIY job)
The engine block may be cracked.
The Fix: Replace engine block.

Grey: Valve seals may be worn
Fuel may not be all burned prior to entering exhaust. Bad signs.
Engine uses more oil than normal, and there is some smoke from the exhaust. The oil level is low between oil changes. It appears that the oil is being burned by the engine because of the smoke in the exhaust. You may or may not notice the engine doesn't have the same power as it used to.

Check these things first. Then if you just can't figure it out, try a certified tech and they can tell you in a few moments.

Best of luck here. Todd

here is my blog:
http://thirdcoastyachtsales.blogspot.com/
Old    CONSIGLIEREG8R (consigliereg8r)      Join Date: Aug 2009       05-31-2010, 4:06 PM Reply   
took a couple of pulls and checked it for myself--must have been steam--no smell to the cloud and it just sort of vanished
Old    Small Light (stephan)      Join Date: Nov 2002       06-01-2010, 10:39 AM Reply   
It's a Nautique, they always drop a little steam cloud at takeoff.

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