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  #1   IP: 68.197.218.245
Old 05-07-2017, 10:17 PM
mpohrille mpohrille is offline
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MMI 501 raw water pump

I bought teh MMI raw water pump several years ago. when I started up my engine for the first timethe pump had seized. Any one else having trouble with this pump? I had winterized the engine as usual
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  #2   IP: 73.28.211.141
Old 05-08-2017, 12:24 AM
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romantic comedy romantic comedy is offline
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I dont have one, but you might want to tell a bit more about what you found when you took it apart...

Where the bearings rusted and seized. Was it the shaft that was seized?
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Old 05-08-2017, 10:42 PM
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How many winters had it been sitting? What was your winterizing process? I bought the MMI 502 pump seven years ago and it has worked flawlessly under some nasty conditions. Don't despair... they are easy to take apart, inspect and service. What exactly is "frozen"? I'm assuming the bearings, but then again, I don't see how they would corrode and "freeze" if you winterized with antifreeze or even freshwater.
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Old 05-09-2017, 05:57 PM
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I bought my MMI 501 pump used from another sailor nearly 10 years ago.
Mine has survived that many winters flawlessly.
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Old 05-09-2017, 06:09 PM
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Quote:
Originally Posted by mpohrille View Post
I bought teh MMI raw water pump several years ago. when I started up my engine for the first timethe pump had seized. Any one else having trouble with this pump? I had winterized the engine as usual
Did you receive a PM from Don?

Bill
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Old 05-13-2017, 09:49 PM
mpohrille mpohrille is offline
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Thanks for the replies. I don't know why the seal leaked but one of the bearings froze. Spoke to Don and , as usual , he was very respnsive
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