Nicked up impeller, liner worn, replace and shim, get back to us.

Heres a pic of the bottom of the foot. We tried straightening the grates with pliers, but couldn't do a very good job.

[img]http://i897.photobucket.com/albums/ac180/Audball0770/footgrating.jpg?t=1355688063[/img]


There's a rod holding the grates in that we tried pounding out with a nail, but it wouldn't budge. Maybe I just needed to hit it harder, but I didn't want to break something....

http://i897.photobucket.com/albums/ac180/Audball0770/footcloseup.jpg?t=1355688072

Here's the impeller....couldn't figure out how to loosen the main nut holding the impeller on.... didn't know which way it's threaded, and was afreaid of breaking off a bolt....

[img]http://i897.photobucket.com/albums/ac180/Audball0770/impellercloseup.jpg?t=1355688072[/img]

Tried deburring the edge of the impeller...difficult to do while it's still on the motor...

[img]http://i897.photobucket.com/albums/ac180/Audball0770/Impellerverycloseup.jpg?t=1355688080[/img]

Here's the liner (wear ring)..... has some pretty deep grooves in it...

[img:left]http://i897.photobucket.com/albums/ac180/Audball0770/wearringgrooves.jpg?t=1355688088[/img]

And finally, here's a view looking into the pump nozzle....looks to be clear of rocks....

[img]http://i897.photobucket.com/albums/ac180/Audball0770/exhaustport.jpg?t=1355688063[/img]

1. You just can't straighten the "grates", without having them off/out of the shoe. Then you can use a vise or just hammer them straight.


2. Drive pin out......bigger hammer, it will drive out......might have to have something "about same size as the pin".....nail always worked for me........try find one side, then the other....it will come out!!!!!

3. Jam a piece of wood, next to the impeller......I have a closed end wench that fits this nut........Righty tighty.....lefty loosey

4. Can't do, impeller, while in boat.....has to be out......

5. NEW LINER ..... doesn't look good to me..........BUT I've seen them worse.......and I don't even work in the business.

6. Hey....good news "the nozzle looks good"...and the impeller looks like it can be made to work. I lucked out, at a garage sale years ago....got 4 or 5 big files and 4 big wenches 7/8 - 1 1/2.....they have saved my butt many times over the years.

Wish I lived closer....I'd help out...

If a outboard marine shop....had all the parts.....and the person doing the work....stays "on task"....whole process....less than a hour.


No one likes to spend $$$$$$$$ but sometimes "for piece of mind" new parts are just nice.

Ohhhh one last thing.....get an extra "lock washer".....the one with the ears/tabs on it............doesn't cost much, sooner or later...you'll break a tab off.......

Good luck.......

Go Seahawks !!!!!!!

Should have bought all the makings for spinners.....I might have gone for a drive.........lol.....just kidding....

Yep! XACTLY what drifter said.

Thanks to all for your help. I am the dad/owner of boat/guy who helped Audball suck up the rocks. We will follow your advice and let you know how it turns out. We WILL get it fixed, even with loss of cash; not sure i could get by without the jet.

Good point, I've been in that situation myself Drifter!!

Roger66:

I'm like you......need to have "jet".....while I still bank fish, in the summer, the vast majority of my fishing, September 16 to March, is in jet boat water.

New liner, filed impeller, grease everything, make sure on the .015 spacing. That cost would be less than $100.00

Cost goes up, if new Stainless Impeller, or if shaft in bent, or if a shop does the work. You might want to call the good folks at Wooldridge, they have a vast amount of knowledge on jets/ and impellers.

Good luck !!!!!!!

Ok,
Today we got the nut off that holds the impeller on (thank you DrifterWA ). Took off several washers. Now, I'm wondering if we need a puller or similiar tool to take the impeller off. I pulled on it as hard as I could and it wouldn't budge. There seems to be something wedged next to the shaft...does that come out somehow?
Here's a pic of what I"m talking about....
[img]http://i897.photobucket.com/albums/ac180/Audball0770/impellerhubcloseup.jpg?t=1356230291[/img]

[img]http://i897.photobucket.com/albums/ac180/Audball0770/impellerwideangle.jpg?t=1356230295[/img]

Also I put Liquid Wrench on the pins holding the grates on the foot, and used a bigger hammer and a heavy punch, but still couldn't budge the pins. Can't imagine I need to use a sledge hammer.?... Any help appreciated. Thanks

That thing is called the key. It keeps the impeller from spinning on the shaft.
Do you have 2 pry bars? They don't have to be big ones... just the typical 16" ers you can get at Home Depot.

Heat the center of the impeller with a propane torch. You don't have to get it real hot and I wouldn't because there's a plastic insert inside it. Place the 2 prybars across from each other and pry both sides simultaneously. The Impeller should come right off.

When this is all said and done, you'll have learned "lot's" .

If that impeller is that tight, then I hope there isn't a bigger problem.

I like the "tap, tap", that Chuck S. mentioned.....might even need more "tap, taps"......

When you start putting stuff back together, grease everything.


Wow....to not getting the pins out.....did you try from both sides?????? I never had any problems on the Yamaha or the Mercury I had......maybe someone else can help out???

Thank you 4Salt, DrifterWA and Chuck S !

Plan now is to buy a new liner (wear ring) and a puller , or couple of pry bars. Heat the impeller shaft and pry off the impeller...

Still not too sure about the grates. I put Liquid Wrench in the holes and let it soak for half an hour then pounded pretty damn hard with a fairly heavy hammer with no luck. Thinking about taking it to a pro to have them get the pins out....

We want to do as much of this as we can ourselves, mainly so we learn how to do it in the future.

Thanks again for all your help guys, I really appreciate it....
Dave

hit it like it owes you a dollar.

Don't worry about the grates just bend them the best you can. Just work on the liners and washers. Rocks don't ready grove the liner most of the time. It's the tork in the shaft and the blades bend and rub the liner a little not much you can do about it just part of the game. Don't get me wrong gravel bars and jets motors are not a good mix.

be careful because even with a propane torch you can melt the impeller Aluminum) unless it is stainless or steel composite.

The little plastic liner for the impeller/shaft likely will need to be replaced due to the corrosion that is holding it on the shaft. Keys are also cheap.

Use anti-seize when putting back on.

Also a little heat on the pin channel should help at both ends of the foot. Or heat it warmer than you can place your hand on and let cool or cool with a garden hose as sometimes this will break the corrosion.

Use no bigger than a 4 lb hammer and a good long pin punch

With how bent your intake/grate fins are, I wouldn't be surprised if they are helping to lock those pins into place. If you can't tap, tap, friggin TAP them out, you might have to sawzall the badly bent fins out to take some pressure off the retention pins.



Be careful that you don't crack the foot if you really start wailing on them, new fins are cheap, a new foot, not so much.

This is a great thread! I have seen fins that bent before and not cause that much reduction in power. Thinking Coley might be right about them holding the pins in. Might be able to pry on them some and get to ease up on the pressure? Anyway if ya get the the new ones the saw out method would be great. I am wondering if the pin itself could be pranged in some way. Might be good to get a new straight one just in case.

I would like to see the impeller and clearance to the liner and liner condition. Loss of power can also be caused there. Those fins are most likely holding the pins in place and are not going to be nice about moving.

+1

Not to mention, larger gaps between them means bigger rocks into the pump next time you hit gravel.

All this hassle with the grates......and getting the pins out....I wonder if there isn't a "used 90/65" lower unit just sitting around somewhere. Might be worth a few phone calls, just to get a price.

I'm real good at spending other peoples money.......but some times its just worth it, to buy good used or new.

Doesn't take much, to cut down the water intake, and thus performance....I'm sure 90% of jet boaters will tell you, what happens to power/performance...when you get 1 or 2 leafs or grass hung in the grates.

Great idea!