Question about Honda Water Pump Impeller Outboard 35, 40, 45, 50 Hp 18-3248 19210-zv5-003

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I have 2005 50hp Honda.I replaced the empella and the pump great until I speed up to 10 - 12 knots. the water from the pump slows down and the alarm goes off. engin shuts down. What is going on? I can cruze at 7 knots without heating up.

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  • James McCall
    James McCall Apr 22, 2014

    I can run the HONDA 50 at full speed in nutral and it does not cut off or heat up., Any body out there ever have this problem or have an answer . jmc

  • James McCall
    James McCall Jul 21, 2014

    The cap of the water pump was leaking . I replaced it ( new cap)

  • James McCall
    James McCall Jul 21, 2014

    Slideing the cap down is important, make sure when the cap is slid down ,the impella should be already in the cap and turn anticlockwise as it is put in place. Honda 50 : anticlockwise

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6ya6ya
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Posted on Jan 02, 2017

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emjem74
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SOURCE: 2005 Honda Civic No heat at idle but have heat

sounds like a circulatory problem. at the back of your engine compartment there should be two pipes connecting your matrix to your water system. it used to be common practise that when your matrix went to just connect them together and bypass as the dashboard has to come out to repair.

Posted on Feb 25, 2009

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SOURCE: 1995 honda civic, while driving engine gets hot & cold?

I used to have this problem too on my 95 Honda Civic EX. It would get hot then it would cool down when I stopped. I replaced the thermostat and it took care of the problem. I am not a mechanic but it was real easy to change out. I bought it at Auto Zone and they even gave instructions on how to replace it. Also don't forget to buy the new seal for it. Hope this helps.

Posted on Mar 15, 2009

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SOURCE: 98 honda shutts off and will not start until cooled off

you say the engine shuts down when it gets hot if it runs rough before doing so it could be the coolant temperature sensor allowing the engine to  overfuel  if the engine cuts out in a couple of seconds but sounds smooth it could be the fuel pump , if it cuts out instantly its electrical.

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SOURCE: Check engine light went on: 98 Honda Accord car

cooling liquid get in contact with gas because o broken cylinder head gasket

Posted on May 17, 2009

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SOURCE: 1977 Honda GL1000 Goldwing. I replaced the water

I have a few 1977 GL-1000 bikes.
I thought one was overheating but it turned out that the 9 volt regulator was fried and was putting 12 volts to the temperature gauge. Temperature was really OK. The fan switch is probably not lying

Posted on Aug 06, 2009

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