[eyebbober]

Thanks for the reply. Gary I have never checked the injectors etc, the boat is new to me this spring and I wouldnt know what im looking at anyways. The surveyor did a compression check which apparantly was good.

It sounds like steam is the issue I am having. Its much more visible at night with the stern light on. Also it dissipates and does not linger.

Would steam cause the black residue?

thanks

brian