water in oil

[2000superair]

ok I have put 32.6 hours on motor this year. no sighn of water in oil. no sighn on dipstick at all. I let the boat sit a few days went to change the oil and water all in it nothing but milk. pulled the top end no sighn of cracks at all. not in the valley and not on outside of block. we have run this motor 32.6 hours before any sighn of water. good compreshion what else or wher could it be cracked.

[2000superair]

sorry forgot oil pressure is at 40 and never over 60 wot. has a slight miss at idle but other than that runs great. dipstick not over full mark just like a creamer in coffee

[barefootinjimmy]

Have you pulled your spark plugs to see if any cylinder is wet?
I would remove all of your spark plugs and crank the engine over to see if water blows out of one of the cylinders.

[Laketexoma]

My first thought would be head gasket. But you said you pulled the top end.

[barefootinjimmy]

Like I said, pull all of the spark plugs ,and look for water blowing out when you crank the engine over. If you lucky, it might be a blown head gasket. Or unlucky depending on how you look at it.

[Paxdad]

Did you by chance suck water in through the spark arrestor due to leaking hose, etc. ??.

[2000superair]

Have not pulled heads yet but when I changed plugs three weeks ago everything looked fine I can not see any cracks in top of block at the valley forgot to mention intake manifold bolts didn't seem to be torqued to me but gaskets didn't show any signs of leak . No water leaks from hoses but it a good amount of water

[TRBenj]

My first thought would be cracked exhaust manifolds or a bad riser gasket. Was there evidence of water in any of the runners when you pulled them off? Did you do a compression test before pulling it apart? Head gasket failure would show up on a compression test, but is pretty uncommon.

[2000superair]

ok finaly got heads off and its tost. block cracked between three cylenders starting at a bolt hole its bad

[scottb7]

How come no pictures?

[Laketexoma]

Sorry to hear that.

[s_kelley2000]

ok finaly got heads off and its tost. block cracked between three cylenders starting at a bolt hole its bad

Really sorry to hear that! Do you think it was freeze damage or something else? Hopefully you can get it all back together in a new block quickly. Good luck!

[2001SAN]

nooooooooo!!!

when did you last check the oil? how many hrs since winterising? surely it couldn't take 30 odd hrs before water showed up in the oil? i'm just curious because i was in a similar boat (no pun intended) a couple of years ago.

water tested boat, oil fine. took boat home, ran for about 3 hrs, checked oil and found milkshake. i was devastated. turned out my block had a hairline crack between the cylinders. did the PO know? probably.

i feel your pain.

d.

[2000superair]

I bought this boat last year and we put 130 hrs on it winterized it put it in the garage and didn't use it for three months. got it out de winterized checked oil looked like I just changed it. took it to the lake ran it all day brought it home used it four more days put a grand total of 32.6 hours on it. I got the wild hair to go ahead and change oil and put new thermostat in and impeller as I have always done on all of my boats every year. pulled the dipstick and milk so then I started tearing down. I called insurance to see what coverage I had and the adjuster has not come to look at it yet but what I am thinking is one of the lifters stuck and it poped. insurance adjuster said he has never seen any boat run that long with cracked block the good thing is we have pictures of each outing when we were at lake and some of the pictures show dates and my gages that oil pressure is at 40 and temp gage is at 160 running. my insurance will cover foulty equitment but will not cover freeze. as I said I think the lifter stuck and their she went it wouldn't even turn over after I saw the milk so I don't know the heads are fine had them checked and pressure tested as well as the manifolds. all their checks out. no cracks at all in valley area or outside of motor crack is pretty big starting out in number 3 cylinder and spiderwebed out to both adjasent cylenders next to it and up to bolt holes for head and acrose to water jacket. I can pull peaces out from cylinder walls piton has a pretty good ding in it and plug is crushed

[pfortin]

You must have over heated !