Replacing your Wear Ring

[admin]

So you have to replace your wear ring. If you are doing this often, you probably aren't listening to what Jeff Walkowiak has to say, and are sucking up all sorts of crap up into your intake, and nailing your impeller and wear ring.

First we gotta yank the jet pump off the jet ski. There are 4 bolts that hold the pump on the hull, so start by removing them. Then you have to detach 3 hoses, the new Sea-Doo's you don't have to remove them. After the hoses are taken care of, you gotta remove all the cables. Once everything is off, you SHOULD be able to pull the pump straight back. Sometimes on the older aluminum pumps you might need a puller to yank it off. Once the pump is off you are going to have the get the impeller out too, so start by removing all the nozzles from the pump, and taking off the pump cone. Now the tricky part, especially if you don't have the right tools. You will need a impeller removal tool. If you don't have one you still can get the impeller off, however it's going to be a lot harder, Here is a link for the impeller holding tool.
http://www.jetskiparts.com/product_i...ducts_id=25087

Put the jet pump shaft in a vise of some sort, and using the tool you will be able to remove the impeller from the housing. Basically clockwise is tightening, counter-clockwise to loosen. The Yamaha's are reverse threaded. That means, clockwise is loosen, counter-clockwise tighten. read the directions carefully.

Here's the other fun part, removing the old liner. Get ready to do some cutting and sawing, so have a saw of some sort ready. Before that though you are going to have to remove some bolts on the side of the pump, which keeps the liner on the pump. Find a cut or a notch in the housing, and start cutting. If you follow the notch, you can go the whole way down. Yank out the liner from the housing once you have hacked everything up. Get some sandpaper, or a wire brush of some sort, and start polishing up the area where the liner used to be at, then put some loctite on the housing. You are going to need some sort of way to put the liner in, so get a hammer, and a decent sized block of wood and start hammering, keeping the liner straight. You are going to finally have to drill the hole for the bolt in the liner, then put the bolt back in.

You are done, and hopefully you haven't killed or maimed yourself in the process.

[Jeff Walkowiak]

sea doo has replaceable rings, yamaha has a pump section with the ring that is replaceable as a unit,the rest of them usually require a new pump if the ring goes bad,I use the newer nylon liners for sea doo and yamaha.
A trick for the sea doo pressed liners is to place the pump in the freezer for about an hour, I made a special screwdriver to get the liner out, it is a large flat screw driver that I heated the end on and bent it at 90 degrees just on the tip, then I gave it a slight grinding to remove the square corners and sharpened the leading edge.
With the impeller still in the pump I can press the edge of the screw driver in between the pump and the liner and carefully tap the liner out going from side to side with the screwdriver, then place the new liner in the freezer for about 1 hour and it will tap in to the pump pretty easily.
If you have a liner that just won't come out using this technique, you need to remove the impeller and cut the liner, I use a flat blade soldering iron tip on a big soldering gun and melt through the liner almost to the pump but not all the way through.
Then use a large screw driver to pry the groove and split the liner so it comes out easily, use the freezer on the new liner and it will usually just press in with your hands.