white smoke coming from exhaust

[sebas54]

HI, I have a 1987 gm 4.3l v6 I/O alpha 1. Today I noticed that there was alot of white smoke coming from the exhaust when going slow and at idle. It seems to run fine with enough power and oil pressure is good. I changed the oil and it still smokes.


What is wrong with it?


Thanks

 

[Bondo]

Re: white smoke coming from exhaust

Ayuh,... Are you sure it's not Steam,.?.?. It's been pretty Cool out....

 

[arks]

Re: white smoke coming from exhaust

What is wrong with it?

Probably nothing.
As Bond-o eluded, the colder water will cause steam to form at the exhaust.
Perfectly normal this time of year.

 

[sebas54]

Re: white smoke coming from exhaust

Thanks for the reply. I failed to mentioned that I moved far away to the FL Keys. So I am pretty sure that it is not steam. It smells like gas to me. I guess it could be steam because the smoke is not real thick. Not sure.

 

[tricone]

Re: white smoke coming from exhaust

Anti freeze burns white,

 

[Philster]

Re: white smoke coming from exhaust

Is it odorless?

Odorless = I vote for steam.

What type of cooling system do you have? Raw water?

Tell us: How long have you owned the boat? What was the air temp and water temp when you noticed this?

 

[sebas54]

Re: white smoke coming from exhaust

It sort of smells like gasoline. It is raw water cooled. The air temp was around 85 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. (Not sure if this means anything but I put some additives into the engine oil)

 

[sebas54]

Re: white smoke coming from exhaust

Is it a bad idea to use the boat like this. Well I am going out now wish me luck.

 

[arks]

Re: white smoke coming from exhaust

Thanks for the reply. I failed to mentioned that I moved far away to the FL Keys. So I am pretty sure that it is not steam. It smells like gas to me. I guess it could be steam because the smoke is not real thick. Not sure.

You need to update your personal info- it says you're in NY.

 

[Philster]

Re: white smoke coming from exhaust

It has a gasoline smell?



It might be oil, which burns whitish blue and has a petroleum smell to it.

Maybe you have a bad piston ring. Wouldn't cause you to break down, but will affect performance a little and lead to loss of oil.