Smoking HELP..........................

[Gillchaser]

I had my boat out and was a little hard starting , had a new starter put in this spring. I got it on plane and noticed some smoke coming from the back left side of the motorin the back. The motor is a 1983 Mercruiser 898, 305 chevy. I idled it back down and it seemed to get alittle better, any help on what this could be, what should I look for when tryin to diagnose thanks.

 

[Bondo]

Re: Smoking HELP..........................

Ayuh,... Too little Info to say,....
Is the Impeller new,..??

My guess is, a lack of water flow is burnin' up the exhast rubber...

 

[produceguy]

Re: Smoking HELP..........................

You might also check the wiring to see if thiers any dry rot.
My first time out with the old/new boat, smoked so bad I broke out the fire exst, but the smoke was coming from the rear and the problem was an old dry rotted wire on the compass up front by the gauges.

 

[Doernuth]

Re: Smoking HELP..........................

Could it have been some oil or other substance that was stuck to the block following the starter replacement? Even WD-40 will burn off at some point.

Did you check your guages when you saw the smoke? Was the temp within range? Oil pressure?