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Volvo 2003 overheating

Discussion Forum at MarineEngine.com » Volvo Penta Diesel » Archive through October 03, 2007 » Volvo 2003 overheating « Previous Next »

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Mike I
Visitor
Posted on Saturday, August 25, 2007 - 12:40 pm:   Edit Post Delete Post View Post/Check IP

I don't have any raw water coming out the exhaust or very little. Impeller is good and water will come out the tube that goes into the manifold but when I hook it up almost none comes out the exhaust.
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Mike I
Visitor
Posted on Monday, August 27, 2007 - 08:20 pm:   Edit Post Delete Post View Post/Check IP

Fixed it myself, took exhaust manifold off and it was plugged full of carbon deposit. Scraped and cleaned and rinsed and presto--works great.
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A Alexander
Visitor
Posted on Thursday, August 30, 2007 - 12:26 pm:   Edit Post Delete Post View Post/Check IP

Mike, The overheating may be caused by larger issues than the elbow. Make sure the heat exchanger, thermostat and hoses are clear (check nipple going into thermo also). I just did the same and found lots of clogging. I cleaned core of exchanger with 50% muriatic acid. Get new seals first.
Do you know where I can find a complete manual on line.
Al A
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Mike I
Visitor
Posted on Thursday, August 30, 2007 - 10:55 pm:   Edit Post Delete Post View Post/Check IP

A A , I am pretty sure it is OK but I will definitely clean it all this winter.I don't know about an online manual, I have a paper copy

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