I have a relatively new 2013 F200XB inline 4 that has just 16 hours on it. It ran great today and I came home and started to flush it and noticed that their was not any water coming out of the pee hole. Then the alarm went off and I shut it down. It has been sitting for a while but it is hard to imagine the water pump failing already. Anyone experienced that with this new motor?
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A barrel is not the same as the boat being in the water.
Was the motor down in the barrel deep enough for water to be over the water pump? To do this, the water level needs to be three/four inches above the point where the lower unit attaches to the mid-section.
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Have you been starting the motor without water to the pump?
It can rip up a pump if started dry, but not always..
Most people buy the water pump kit that comes with new cup and wear plate, also gaskets,o rings,etc for just a few dollars more than just the impeller. not sure about your unit.
if you can back the boat into the ramp and fire up the motor, it would be a easy way to check it
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I had it in the barrel with enough water above the line and I would assume this would be enough to replicate the same as backing it in the ramp. At this point I am going to replace the pump as I cant see driving it to the ocean to get the same results as the barrel. I appreciate the comments.
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Originally posted by 99yam40 View PostHave you been starting the motor without water to the pump?
It can rip up a pump if started dry, but not always..
Most people buy the water pump kit that comes with new cup and wear plate, also gaskets,o rings,etc for just a few dollars more than just the impeller. not sure about your unit.
if you can back the boat into the ramp and fire up the motor, it would be a easy way to check it
Thanks
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typical pump failure is usually induced.
its normally caused by someone running the pump with insufficient water.
typically it melts the housing as well as burning up the impeller.
can happen in the first 30 seconds.
ANY sign of melt in the housing means the housing is scrap.
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Also... if you're running in skinny water then sand/mud/etc can play havoc on the impeller and wear plates in short time. You'll know more when you take it apart. Even the smallest of grooves can affect impeller performance.2000 Yamaha OX66 250HP SX250TXRY 61AX103847T
1982 Grady Weekender/Offshore (removed stern drive & modded to be an OB)
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Well just for grins I thought I would go ahead and dip it in the ocean before I pull the pump. Sure enough, it worked just fine. I have never had this happen and was sure that the pump had failed but it just does not like the muff or barrel even though it was well above the mid line. Thanks for all the comments and suggestions. Now I have a spare pump for next years service!
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As long as the engine was dipped far enough in the bucket, I'm curious why it wouldn't work as well as being in real water. The only thing I can think of is the exhaust could create air pockets, thereby lowering the amount of actual water that the impeller sucks in?
For what it's worth, my engine pees out nice and strong with just a hose.2000 Yamaha OX66 250HP SX250TXRY 61AX103847T
1982 Grady Weekender/Offshore (removed stern drive & modded to be an OB)
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