Can anyone help me.

[Pitblind1754]

I have a 2014 60hp 4 stroke Mercury Outboard. About 3 months ago I changed the water pump, I had the weak pee stream of death. But anyway I fixed the issue. I haven?t had much time to take the boat out but I took it out today and the pee stream had a lot of pressure. Then as it got warmer it seems like it gets much weaker. So I got it home and would run it the very first time cranking up it would be hard pressure then once warm it would get week. Also when I first crank it up it takes about 10-15 seconds to get water to pee out. Also when I turn it off it pees for about as long. I have cleaned the discharge hoses and blew out with Air but seems to be clean. Can anyone help me thanks.

 

[Grub54891]

Welcome aboard Pit. You came to the right place for advice, Myself can't help much on this one, but if you could provide a model and serial number others will chime in and help out. I assume you changed the impeller, were there any blades missing? If so did you find them all?

 

[Pitblind1754]

Welcome aboard Pit. You came to the right place for advice, Myself can't help much on this one, but if you could provide a model and serial number others will chime in and help out. I assume you changed the impeller, were there any blades missing? If so did you find them all?

I did change the Impellar no blades missing. I?m at work all day today so I don?t have a way to get serial number but I will update as soon as I can. But it is a Mercury 60 EFI 4 stroke

 

[QBhoy]

Is this perhaps a thermostat symptom ?
Not an expert on the 4 stroke you have at all..but a fair number of outboards out there intermittently flow out the tell tale with thermo stat action opening and closing.
The reference you made when cold would suggest this.
Ideally get a heat sensor gun (cheap) and see what temp she shows.
Assuming the tell tale outlet lines are all clear of salt congestion ofcourse...

 

[tommarvin]

Drop the lower unit, remove the water pump housing, are all the impeller vanes going the correct direction.
We have 115hp and the drive shaft/flywheel turn clockwise,looking down at water pump.
Is the keyway holding the impeller on the drive shaft. so the impeller is not spinning on the drive shaft.

 

[Grub54891]

When you start the motor, the impeller blades will flip to the correct direction. I'd look at the thermostat area also,
https://www.youtube.com/watch?v=ECv1VwW6RTo
check out the video about how an impeller works.