2005 ar230 water in the oil

[Doug hayes]

Pulled plugs no sign of water , but what i did find is that number one and number 5 has signs of water in top of the plugs do you think the vavle cover gasket could be to blame

 

[Jgorm]

So is there water in the oil, or just on the valve cover? That coolant tune could be leaking some.

 

[Doug hayes]

Water in the oil

 

[Doug hayes]

Here is what the number 5 plug looks like and number one was worse as far as gunk on top of plug

 

[Cobra Jet Steering LLC]

Pull the dipstick and see what color the oil is and what the oil level is also

 

[Doug hayes]

Milky and way over full

 

[Cobra Jet Steering LLC]

I believe MR-1 engines have issues with the exhaust manifold leaking water from corrosion, do a search and see what you can find it may point you in the correct direction but that is what comes to mind.

just one of many = manifolds crack/seeping – this is a relatively new item we heard about but any MR1 would be worth monitoring. https://jetboaters.net/threads/milky-foamy-oil-in-a-2008-ar210-with-825-hours.13994/page-2 or https://jetboaters.net/threads/2005-ar230-saga-continues-now-i-have-water-in-the-oil.10555/

 

[Doug hayes]

Yep see that one

 

[Brad_Ct]

The steel tube coming through the valve cover is the cooling water return line. The end of it under the valve cover has a ORing on it that seals it to the water passage in the head. That may possibly be leaking.

 

[Cambo]

Drain the oil from the bolt on the back of the motor and check the o ring listed above

 

[Doug hayes]

Thank you guys for all your help

 

[richs986]

What was the final verdict?

 

[Cambo]

My guess cracked block, breach at the exhaust manifold or by the head gasket