1989 4.3 mercruiser just rebuilt. Finally got to fire it up for the first time today. It sounds great! About 5-10 minutes after startup(operating temp) i noticed vapor coming out of my crankcase breather tube. I understand that's normal, but it appeared to be more of a water vapor than an oil. Smelled watery too. That and the fact that it only showed up after i was hot makes me think i got water getting in somewhere.... Maybe I'm just nervous but this engine didn't need an overhaul for no reason.... It's had some issues and I'm wondering if a small water leak might be part of the problem... Thoughts?
Thanks
I ran it for another few minutes and can see what appears to be water droplets on the end of the breather tube. Where is it coming from? So bummed
Thanks
I ran it for another few minutes and can see what appears to be water droplets on the end of the breather tube. Where is it coming from? So bummed
Last edited: