Help a family diy guy out please

Four winn probs

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I just bought a 1999 Four Winns Horizon 180 with the V6 Volvo Penta 4.3 liter in it the boat was professionally winterized last winter I unwinterize this fall and took it out 2x just a little bit .. did real good then when I went out for the first big trip as soon as it hit temperature oil and water mixture started spewing from the carburetor letting me know that there was water in the oil so my question is is since it was still running really good even with the oil coming out is it a cracked intake or could it still be a cracked head gasket and run that good and how do I test these. I have all the Walls down and am ready to tear into her but not sure if I should just pull hole moter or Try to replace the intake only first. I will say that I pulled it right out of water when I saw the problem and it never got hot or left me stuck. It was actually ran pretty good the hole time. BUT..... this am (easter morning) happy Easter everyone.. I went out and tore the walls down to inspect the engine and I tried to crank it to see ware to oil/water was coming from and it sounded like the starter was grinding on a tooth of the fly wheel or something. Sounded really bad considering when I pulled it out of the lake it was running fine minus the oze coming out of top of moter. So I gusset my questions are

Should I pull hole moter out?
Should I buy a new long block or try and fix this one?
What are the chances of it just being the intake?
Will a compression test tell me anything?
What should I do first?
Should I drain oils and replace and try and start?
Drain oil and pull moter?
Pull intake and inspect?
 

Four winn probs

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It was just a pic of the moter with a the milkshake on top of intake. I just want to no what action in should take. Should I drain oils now to ensure water doesn't rust my cyls to walls? Should I just pull moter or is there a simple reason that water could be in the oil that wouldn't require me to remove moter. What kinda tests can I do to pinpoint my problem and percent any unnecessary work or expenses
 

Four winn probs

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Well I went out and pulled the plugs. After I pulled the plugs it will turn over so I tried to put my compression tester on the cylinder and as soon as the pressure built to 120 it started acting like the starter was grinding agin. Then after I remove tester it will turn over agin. So looks like if any resistance it's put on it it acts like it's grinding something. Any Advice would be greatly appreciated. And don't know what I was thinking but I typed dyi instead of diy... my bad
 

Bondo

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Ayuh,... Pull all the spark plugs, 'n turn it over on the starter,...

Which if any cylinders spew crap out,..??

Drain the coolin' passages, isolate the block, 'n pressurize to 'bout 15 psi, 'n Listen,...

If ya hear escapin' air, follow the sound to the leak,....
 

Four winn probs

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While the plugs did look at Lil wet they're definitely wasn't any milky sludge in the cylinders when I turned it over with the starter with the plugs out it look like water came out of one side only couldn't tell if it was all three cylinders on that side or just one cylinder on that side as I was turning the key
 

Four winn probs

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Ayuh,... Pull all the spark plugs, 'n turn it over on the starter,...

Which if any cylinders spew crap out,..??

Drain the coolin' passages, isolate the block, 'n pressurize to 'bout 15 psi, 'n Listen,...

If ya hear escapin' air, follow the sound to the leak,....

So pull the drain plugs and drain the system. Then plug up all passages and force air into one of the drain holes? Would I need a special tool or just a air blower on end of airline? What are the chances that my problem is not a cracked head gasket or intake? I've heard that there is some valve when not workimg properly it can allow water in the oil but haven't found any more info on how to trouble shoot this.
 
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jimmbo

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If I recall correctly, there is a drain on the intake on the 4.3 that needs to be drained, in addition to the block, hoses, and exhaust risers? If that's all that froze count yourself lucky. The block usually cracks in the lifter galley
 

Scott Danforth

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when I read your post, you bought the boat winterized, and before winter you took it out on the water twice, and now in spring you have an issue. did you re-winterize it before the cold weather? if not, pretty sure you froze and busted the block, and probably the manifolds as well.

you start by draining all the water, and then pressure testing the cooling system like Bondo mentioned to 15psi. if you cant pressurize it, and you hear air hissing out, find where its hissing.

since you have water coming out of the one side, you know you have a problem there. pull the manifolds and fill the cooling passages with acetone. if you have a crack, it wont hold it, and will start running out.
 

Four winn probs

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Had a craigslist.com "boat mechanic" come take a look at it an he says that there's a winterize foam stuff that was put in there and that is what cause my oil to foam up. He says he pressurize it and no leaks. Now he says we need to change the oil at least 2 times to flush stuff out. Is this total bullshit or is he on to something. I really hope he is right but don't no what to think. It's it possible that there is no cracks and the oil got foamy from some winterize method? That would explain why it was still running good even after the hole top of moter was covered with milk shake
 

bruceb58

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Had a craigslist.com "boat mechanic" come take a look at it an he says that there's a winterize foam stuff that was put in there and that is what cause my oil to foam up. He says he pressurize it and no leaks.
BS on the winterize foam stuff.

Not sure I would trust him for anything. Did you watch him do the pressure test?

Just to be clear, when was it winterized? You said it was winterized last winter and then you took it out the following fall. Does that mean it wasn't winterized for the 2015/2016 winter?
 
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Bondo

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Is this total bull**** or

Ayuh,..... Sounds bogus to Me,....

Exactly what did he pressure test, 'n How'd he do it,..??
 

Four winn probs

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Ok the boat was professionally winterized in November. I bought it late February. Put both block plugs and both exhaust plugs back in and put 3 hoses back on the water pump and such. Checked oil level and ran it for 10 mins with rabbit ear fake a lake. Oil looked good so I cleaned and fixed all stuff and took her to lake. A buddy has a slip he was currently not using so I launch boat Cruz for about 10 mins and park her back after notice vibration. Inspect prop and it's bent. So had it refurbished and put back on 3 days later and test drive for 10 mins. Vibration gone and oil good. Park her back and the next day. (Easter Saturday) I was taking her out with the hole fam for first big day out and about 15 mins out I see just a Lil smoke I the wake so go look at engine n that's when all the milkshake was spewing from the carburetor breather pouring all over the intake. Was to much to see ware it was coming from. Boat still ran good and was not hot. I got to the spot we were going and got a,ride to get my trailer and pulled her out. She did start back up and pull herself out tho. It did not freeze after I plugged cooling system up.
 

bruceb58

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How was the boat stored between November and February? Anyway water could have gotten into the carburetor from rain through a leaky cover?

Any chance of water collecting high enough in the bilge to reach the level of the crankshaft?
 

Four winn probs

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Not sure if the storage conditions pre me getting it but it did have a cover when I got it and the interior while was super dirty was still new looking. But I figure if it cracked during storage wouldn't it have leaked the first time I started it. Not 4 of 5 starts later. Or would the fact that I never let her get all way to temp be a factor in the final result. Still waiting on this craigslist.com boat mechanic to let me no how the oil change fixed it.
 

Four winn probs

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Also no chance of enough water getting to crank while I had it out. I allways I would say over check stuff till it proves it won't break over time.
 
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