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Milky Oil

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Evilsizer Quote  Post ReplyReply Direct Link To This Post Posted: September-16-2019 at 10:26am
MrMcD you were correct. This weekend I pulled of the exhaust hoses an sure as you said it a collapsed hose. Completely caved in solid. I cant believe you cant tell anything is wrong from the out side.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MrMcD Quote  Post ReplyReply Direct Link To This Post Posted: September-16-2019 at 5:57pm
Glad you found that and maybe the collapsed hose shut the engine down before it was damaged. That is what they were designed to do.   They used to be the USCG standard but the standard changed some time back and newer boats no longer have collapseable hoses.   Now for that milky Oil.   Any cause discovered yet.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tryathlete Quote  Post ReplyReply Direct Link To This Post Posted: September-16-2019 at 6:18pm
I thought that was solved—oil change after high bilge water?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JoeinNY Quote  Post ReplyReply Direct Link To This Post Posted: September-16-2019 at 6:33pm
Originally posted by tryathlete tryathlete wrote:

I thought that was solved—oil change after high bilge water?


Thats usually unlikely, I have grasped at that straw a few times without catching it. However depending on the still relatively sketchy order of events.

If you had blocked off exhaust manifolds on a commander and had fixed whatever was causing the first overheat (which was water flow related if the hoses melted, and not due to a faulty thermostat that would have heated the engine but not the exhaust hoses) you very well could have enough water back up enough to settle in the exhaust ports and make its way into the crankcase.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MrMcD Quote  Post ReplyReply Direct Link To This Post Posted: September-16-2019 at 6:35pm
I forgot about the oil being better, do we know why it overheated and burned the exhaust tubes yet?   It would be a shame to install new tubes and burn them again.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tryathlete Quote  Post ReplyReply Direct Link To This Post Posted: September-17-2019 at 2:27am
Wasn’t it a backwards thermostat?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote RealDeez Quote  Post ReplyReply Direct Link To This Post Posted: September-17-2019 at 11:03am
If it was just the thermostat the exhaust would still be getting water and the pipes wouldn't have melted... I think that's why there's still a question. RWP problem or something maybe.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: September-17-2019 at 11:31am
Originally posted by RealDeez RealDeez wrote:

If it was just the thermostat the exhaust would still be getting water and the pipes wouldn't have melted... I think that's why there's still a question. RWP problem or something maybe.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Evilsizer Quote  Post ReplyReply Direct Link To This Post Posted: September-17-2019 at 1:04pm
The exhaust tube was definitely collapsed. The outside of the tube looked normal. It is completely blocked!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Evilsizer Quote  Post ReplyReply Direct Link To This Post Posted: September-17-2019 at 1:06pm
It originally overheated due to the impeller
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 8122pbrainard Quote  Post ReplyReply Direct Link To This Post Posted: September-17-2019 at 1:14pm
Originally posted by Evilsizer Evilsizer wrote:

It originally overheated due to the impeller

Regarding the impeller:
Originally posted by 8122pbrainard 8122pbrainard wrote:

I'd like to add that running the engine dry will burn up a rubber impeller pump within minutes since they are water lubricated. I've even seen it at the launch when the owner decides to " we had better see if the engine starts before we put it in the water."


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Post Options Post Options   Thanks (0) Thanks(0)   Quote MrMcD Quote  Post ReplyReply Direct Link To This Post Posted: September-17-2019 at 3:45pm
MrMcD you were correct. This weekend I pulled of the exhaust hoses an sure as you said it a collapsed hose. Completely caved in solid. I cant believe you cant tell anything is wrong from the out side.

Our Buddy Pete nailed the collapsed hose before I did.    
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