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The Mariah Owners Club » Maintenance and Repairs » Mercury MerCruiser

2006 mariah motor

Mercury MerCruiser

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Old 06-16-2015, 03:44 PM   #1
 
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Default 2006 mariah motor
Couple of freeze plugs came out last winter, have checked oil looks good, do have a crack in the exhaust manifold. Cannot get water to cycle thru the engine, you can tell the exhaust manifold is hot but the temp gauge is not coming up either. Any clue what I need to start with? I've had this boat since 2008 and never had any issues.
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    • Old 06-16-2015, 04:02 PM   #2

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    Default Re: 2006 mariah motor
    What engine? I would probably start with the raw water impeller.
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    Old 06-16-2015, 04:13 PM   #3
     
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    Default Re: 2006 mariah motor
    4.3 mercruiser I/o
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    Old 06-16-2015, 04:27 PM   #4

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    Default Re: 2006 mariah motor
    so that would have alpha 1, which has an impeller inside of it, rather than mounted on the engine, when that goes bad, and they do. Then no water gets pumped into the engine.
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    Thank you cswinings for this useful post!
    Angryangel (11-19-2016)
    Old 06-16-2015, 04:53 PM   #5
     
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    Default Re: 2006 mariah motor
    Awesome thank you will try that!
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