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over heating issue #9042544 06/17/13 06:08 PM
Joined: Aug 2002
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mrouse Offline OP
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I have a 2003 Merc 150 XR 6 that is overheating. The impeller/water pump and pop-it valve have been replaced and water flow thru the heads has been checked and verified but it still has a problem. Anyone have any suggestions on what the problem could B?


Mike Rouse
M Rouse Designs
214-801-9944
mrousedesigns.com

Re: over heating issue [Re: mrouse] #9042586 06/17/13 06:26 PM
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ssmith Offline
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did you change the water pump housing?

Re: over heating issue [Re: mrouse] #9042589 06/17/13 06:27 PM
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redchevy Offline
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Does it have t-stats?

Re: over heating issue [Re: ssmith] #9042737 06/17/13 07:09 PM
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mrouse Offline OP
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Originally Posted By: ssmith
did you change the water pump housing?

Yes


Mike Rouse
M Rouse Designs
214-801-9944
mrousedesigns.com

Re: over heating issue [Re: redchevy] #9042961 06/17/13 08:07 PM
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mrouse Offline OP
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Originally Posted By: redchevy
Does it have t-stats?


I assume so and that is the next thing on my list to check. After that, I have no clue!


Mike Rouse
M Rouse Designs
214-801-9944
mrousedesigns.com

Re: over heating issue [Re: mrouse] #9043456 06/17/13 10:38 PM
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OldChamp Offline
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Could be head gaskets. My '89 Pro V was getting hot some years ago and that's what fixed it.




Re: over heating issue [Re: mrouse] #9047531 06/19/13 02:40 AM
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Featherduster Offline
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Head gaskets would be my guess

Re: over heating issue [Re: Featherduster] #9048180 06/19/13 12:09 PM
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BassHunter 69 Offline
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Are you sure the impeller has the fins turned the correct way??? Seen this be an issue.


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