Hello John Talley here with Boats.net. Today we're going to be doing a
little bit of work on our Mercury Tracker 25. Today we're gonna go ahead
and replace the water pump. This one's been sitting up for a while,
so I'm betting that pump is probably hard as a rock and it needs to be
replaced before we put this thing into service. So let's go look at the parts
we're going to use and then we'll dive into this project. Now with this one part
number, you get a very comprehensive kit. It has the impeller, all the gaskets, the
wear plates, the o-rings, any seals, all of it. It's in one box and ready to
go. So now that we've got it laid out, let's
go over there and get it installed.
Alright, let's start by getting this top bushing out of the way. They actually
call it a centrifugal spinner. I have no idea what I call it that. Looks like
it just a rubber washer to me. Looks pretty well dry rotted. Then, to get the
water pump housing, just have four bolts holding it in place, using a ten
millimeter socket to do that.
Everybody's out, just lift her off. Oh we caught this one just in time. Holding
together, but just barely. Look at all those cracks. Not a moment too soon. Let's
go ahead and lift out our impeller, what's left of it, and those little
plastic washers that sit on top of it. It's all just disintegrating. A second
plastic washer that goes under it, but on the wear plate. See if we can pry it up
right here. There we go. Then we should have gasket on the bottom. All we need to
do now is put the water pump back together. It is directional.
Then our wear plate. Put in the first nylon washer. Then we'll set this little
key that holds it in place on the input shaft. Now we can bring down the impeller
itself. Before we seat it all the way, let's put a little bit of grease on the
wear plate, because on her first start of course there's not gonna be any water up
here, and we don't want to damage it straight out of the gate. So just a
couple of little dabs like that'll do it.
So when she starts up, be good to go. Now here's where you have that second nylon
washer that goes in place. Get our O-ring, put it inside the housing.
A little bit more grease inside of the housing, then we bring it down. We want to
turn this clockwise as we push down, that way it'll be bending the actual ends of
the impeller in the correct direction. So that's in place, it's pushed down. Now we
just need to get our bolts back in place.
Next we put on this little rubber washer if you want to call it that, or
spacer. Then last thing we need to do, let's get this little pickup adapter.
This little groove right here? That little groove just needs to get tucked
in to the housing. Well there you go, that pretty much wraps this up. Only thing I
have left to do now is just remount it to the powerhead. Well listen, if you need
these or any other parts for your machine, why don't you come see us at boats.net
and we can get you taken care of. If you have any questions or comments,
leave them in the section below and I'll do my best to answer them. And hey, if you
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Y'all have a great day.