Oh Oh!! Water in oil pan????

[ottawamerc]

Hi guys<br />well I'm just getting my boat ready for this years use. I was putting all my drain plugs back in and reattaching the hoses etc. I of course checked the oil and there to my surprise was alot of new clean oil on the dip stick? I tried dropping out some from the sump and I got around 1-2 cups of water!<br />Here's the question- where the H--- did the water come from? Remember all drains were out and hoses removed.<br />Should I try running this thing?<br /><br />Oh yeah the engine is a Merc 228 chev 305 block.<br /><br />Any ideas or comments will be greatly appreciated.

 

[hullofalottatrouble]

Re: Oh Oh!! Water in oil pan????

came from god.. water bad.. pull plugs.. turn engine over.. water coming out of clyinders? did you have any problems last year? any overheats? boat run okay?

 

[ottawamerc]

Re: Oh Oh!! Water in oil pan????

Really water from God eh?<br />Ya the motor overheated bad once last year but I ran it after that and there was no sign of water then. Now after winter storage theres water.

 

[KaGee]

Re: Oh Oh!! Water in oil pan????

Hi there Ottawa!<br /><br />Do a search for "water intrusion", read the recent posts. Look for a link I posted of a Merc tech bulletin on the same subject. Plenty of info to get you started. Sorry, too tired to look it up again myself.<br /><br />Good luck!

 

[xltier]

Re: Oh Oh!! Water in oil pan????

we have 3 mercruisers parked side by side every year and they always end up with 1-2 quarts of water in the pan.have been told that its condensation due to the area.dont have any other explanation.

 

[ottawamerc]

Re: Oh Oh!! Water in oil pan????

Thanks Guys<br /><br />Really xltier so this may be a normal thing? and do those engines work ok still?

 

[KaGee]

Re: Oh Oh!! Water in oil pan????

NO.... 1 to 2qt of water is not normal... any condensation should burn off with a good 15 minute run. Find the source... fix it.<br /><br />Does your car accumilate that much water too? No. Neither should your boat engine.

 

[ottawamerc]

Re: Oh Oh!! Water in oil pan????

ya I thought so too but I'm grasping for ideas. I have not started the motor yet. I checked the link you sent on water intrusion, thanks. I did have an unknown amount of rain accumilation into the sump this winter then froze before I could remove it (tarp failed) <br />I'll try a start today after I change the oil.<br />Thanks

 

[GabeNalley]

Re: Oh Oh!! Water in oil pan????

On the same subject I have pulled my engine out because it was a cappicino maker and not an engine. Oil/water yummy combo was coming out the valve cover vents as I was halfway across the lake. <br /><br />Currently I have removed the engine, pulled the oil pan and pressurized my water intake tube to the point of water spilling out the exhaust. No leak in oil pan (thus no crack in block). Is there a way to do the same and look into damage on heads or intake manifold? <br /><br />I have Service bulliten, but couldn't bring myself to run the engine again. Suggestions?

 

[holgo123]

Re: Oh Oh!! Water in oil pan????

I am following the Mercury Service Bulletin suggested on this forum for water intrusion. I just had something similiar happen. I had water in the pan and on top of the pistons. My oil and water never mixed, so I must have turned the engine off right at the time the water intrusion occured. The engine then hydrolocked... I spent a couple days drying the cylinders out, oiling them and changed the plugs, oil, and oil filter. I have to admit that I was very nervous about turning the key (it took me 2 days to build up the nerve)and trying to fire it up... but I did and now have it running and can keep troubleshooting as the bulletin reads. Good luck!

 

[GabeNalley]

Re: Oh Oh!! Water in oil pan????

How did your water get in? Intake?

 

[holgo123]

Re: Oh Oh!! Water in oil pan????

I am still trying to figure that out. I know I have a leak through the transom plates that I need to fix. I think that the boat took on water in the bilge area which lowered the waterline. I was putting around without being on plane and had the nose up on the boat and my wife was sitting in the back. I stopped the boat and I believe water came up the exhaust. When I went to re-start it. The motor was hydrolocked. I am pretty sure the boat was not running when the water entered because the water was clear and the oil was not milky at all... I am pulling the drive right now to have a look. I just checked the oil and spark plugs since I ran it this morning and everything is good...

 

[GabeNalley]

Re: Oh Oh!! Water in oil pan????

Mine never Hydrolocked. Kept on running and churning up the water in the oil. It was hard to start and the 1st time I had put in since winter. <br /><br />As far as cracks go, does anyone know how visible they would be in the the manifold or heads?

 

[DHPMARINE]

Re: Oh Oh!! Water in oil pan????

If you accumilated water in the bilge (sump) and it was enough to come up to the crankshaft (front or rear) that is how the water got in.The seals on the crankshaft are designed to keep oil from getting out of the engine.Period.They don't stop water from comming in.<br /><br />DHP<br /><br />You may also need a starter soon,as that got water too.

 

[spartanpele]

Re: Oh Oh!! Water in oil pan????

Check all your fluids, hook up the muffs, and run the engine to operating temperature. Afterwards, recheck the oil...did is rise? Pull the plugs, turn over the engine by hand...is there water in the cylinders? Change out the oil and oil filter. If there water in the oil? Does your oil look milky or chocolatey? If so, theres water present.<br /><br />If theres water in the oil, you've got water intrusion from somewhere. and the most likely culprits are: manifold, risers, block or head. <br /><br />If there was any water left over during winter inside the engine area, freeze cracks could have occurred. If you haven't checked your risers or manifolds lately, its possible theres rust, cracks or bad gaskets.<br /><br />But you need to find out where the water is coming from.

 

[GabeNalley]

Re: Oh Oh!! Water in oil pan????

I have my engine stripped down to the cylinders. I can't physically see any crack nor any obvious places where gaskets have failed. Again in my last post I hooked up my water tube to a hose and pressurized the system until water was coming out the exhaust. No water draining into the oil pan so I am assuming the block is still ok. <br /><br />Where are likely locations for crack to appear in Intake manifold or heads?

 

[GabeNalley]

Re: Oh Oh!! Water in oil pan????

Happy to report that my intake manifold and heads are ok from machine shop. I guess I am going to have to take in the Ex. manifolds and risors to have them checked. When I get heads and intake back I'll reassymble and block off exhaust ports and pressurize block w/ air @ 15 psi just to quadruple check things. Hopefully all this testing won't mount up to be as much as a reman'ed long block.

 

[jimmytee]

Re: Oh Oh!! Water in oil pan????

Bard, can you forward the link to the service bulletin; I tired a search on it and didn't find it...