1985 Mercruiser 305 possibly water in the oil.

[TampaBoater]

So, I was running the other day, and noticed a small water leak on the starboard exaust manifold. Bad gasket.
I replaced it, but while doing so, i noticed the spark plugs were coming out wet. Today I checked engine oil, and it was grayish/cream in color. I changed oil and filter. Question is, could the water leak in the exaust manifold have let water into the oil and cylinder heads? I havent run it since, but was hoping to go out in the water tomorrow...

 

[Capt Ken]

Re: 1985 Mercruiser 305 possibly water in the oil.

Yep.

 

[spdracr39]

Re: 1985 Mercruiser 305 possibly water in the oil.

I would also run it a limited amount of time just to heat it up to operating temp and change the oil again to make sure all the water is out.

 

[TampaBoater]

Re: 1985 Mercruiser 305 possibly water in the oil.

I would also run it a limited amount of time just to heat it up to operating temp and change the oil again to make sure all the water is out.

I dread changing the oil on this thing. I always end up spilling some in the bilge. Can anyone share your methods ir equipment you use to change oil in an inboard with the oil pan all the way down there??? Thanks.

 

[bspeth]

Re: 1985 Mercruiser 305 possibly water in the oil.

heat it up and suck it out the tube with a vac pump.

 

[Bondo]

Re: 1985 Mercruiser 305 possibly water in the oil.

I dread changing the oil on this thing. I always end up spilling some in the bilge. Can anyone share your methods ir equipment you use to change oil in an inboard with the oil pan all the way down there??? Thanks.

Ayuh,.... Just how much over-full was the oil, before ya changed it,..??

Ya changed it once already,... Take it out, 'n Run it,...

Once up to temp, the little remainin' water will steam off, outa the oil,...