whats wrong with my 1998 mercury 150 efi, its not pumping water!

[quantumman29]

i have a 1998 nitro 884 savage equipted with a 1998 mercury nitro series 150 efi outboard....<br /><br />i launch the boat,fire up the engine,soon she begins to pump a nice **** stream of water,as long as the engine is idling,she keeps on pumping,if i drive the boat and not get up on plane(5-15 mph) it keeps pumping fine,<br /><br />as soon as i try to go fast and get up on plane,the warning buzzer goes off and it appears to stop pumping water,i shut down,wait a few minutes,restart and the same thing happens,as long as im idling,it pumps,as soon as i go fast,it stops,is my impeller shot? do i have clogged intakes? is my water pump shot?<br />can i repair the impeller myself? whats my cost if a dealer repairs the engine?<br /><br /> thanks,<br /> mike

 

[roscoe]

Re: whats wrong with my 1998 mercury 150 efi, its not pumping water!

Is this boat new to you?<br />Is this a new situation, or did the motor perform properly before?<br /><br />Motor may be mounted or trimmed up too high, not allowing water to reach the water intakes.<br />Do you have a water pressure guage? if so, what does it read at low rpm? and at higher rpm?<br /><br />Yes you can change it yourself. Get a repair manual ($30), and order the parts.<br /><br />Dealer likely to charge ????? $125-$200.

 

[quantumman29]

Re: whats wrong with my 1998 mercury 150 efi, its not pumping water!

actually ive had the boat for 16 months now,ive had this problem once before back in september during a bass tournament,the boat was running fine all day, then the warning beep came and i shut the motor down,<br />i waited a few minutes,cranked her back up,shifted into reverse ,reved the motor,then shifted forward,i figured i sucked some muck up into the intakes, it seemed to work fine the rest of the day...<br /><br />i didnt use the boat since september due to illness,and relocation reasons,i winterized it myself in late october,unwinterized in,june,and used it the 1st time last weekend since i un-winterized it. i did however use the boat last week in salt water,1st time ever,and thats where the problem happened....<br /><br />im in the midst of moving to florida and with my business,i had to take this year off the torny trail so the boat hasnt been used but 1 time thus far...it pumps water with ear muffs and a garden hose attached,it pumps water as it idles and is traveling at low speeds....<br /><br />as soon as she tries to get up on plane,2 minutes later the continuos beeeeeeeeeeeeeeeep alarm sounds,and all i see in the back of the motor is a cloud of steam commin from the exhaust and pump out hole area.....i let it cool for a few minutes,she starts rite up,and water begins to pump soon thereafter......i didnt try to get it on plane again as i was afraid of doin damage to it,i idled back in to the launch site and trailerd her home,she pumped fine when i cleaned it out with the garden hose and ear muffs,i ran her for at least 20 mins and it pumped just fine!<br /><br /> mike

 

[quantumman29]

Re: whats wrong with my 1998 mercury 150 efi, its not pumping water!

the water pressure gauge dosent even work on the boat,i figured it was just a dummy or its broken..god i miss my stratos!!!!!<br /><br /> mike