Impeller replacement pics

[twowheeledfish]

After 29 years, my aluminum impeller was looking like this:
http://i40.photobucket.com/albums/e208/twowheeledfish/Picture010.jpg
I was getting a little nervous about the wear, cavitaiton burns and rock dings. It was probably ok to run this year, but I really didn't want to chance blowing a big hole in my nice AT bowl... plus my buddy had a new AT stainless A w/ bronze shouldered wear ring in the shop, so we tore it apart.
http://i40.photobucket.com/albums/e208/twowheeledfish/repair3.jpg
http://i40.photobucket.com/albums/e208/twowheeledfish/repair5.jpg
http://i40.photobucket.com/albums/e208/twowheeledfish/repair4.jpg
http://i40.photobucket.com/albums/e208/twowheeledfish/repair1.jpg
We got the new bronze wear ring in...
http://i40.photobucket.com/albums/e208/twowheeledfish/repair2.jpg
...but didn't like the way the suction housing looked, so we decided to take a little aluminum from it to smooth the flow to the impeller. I'll post more pics when we finish this week.
Cheers.....

[victorfb]

wow, for 29 years of abuse it didnt look that bad. but you should be real happy with the new one. carefull with the bowl work. it doesnt take much to screw em up. leave all the leading edges and just smooth out the surfaces. or better yet, talk to a professional before you dig right in. otherwise, way cool man, hope you are fully satified with the new stuff. :D yippee.
oops, just re-read it and notice your not touching the bowl. and yes smoothing out the suction housing is a good idea. good luck.

[Coded-Dude]

http://i40.photobucket.com/albums/e208/twowheeledfish/Picture010.jpg
Funny, thats almost exaclty what mine looks like.
Hoping to have a new impeller and the pump rebuilt by next month.......:(

[RCB19]

Have that new impeller detailed before you install it. They are pretty crude out of the box. It will make a difference. :)

[twowheeledfish]

wow, for 29 years of abuse it didnt look that bad. but you should be real happy with the new one. carefull with the bowl work. it doesnt take much to screw em up. leave all the leading edges and just smooth out the surfaces. or better yet, talk to a professional before you dig right in. otherwise, way cool man, hope you are fully satified with the new stuff. :D yippee.
oops, just re-read it and notice your not touching the bowl. and yes smoothing out the suction housing is a good idea. good luck.
My buddy that used to race/owns jetboat shop/etc is doing the work to the suction housing... I'd be sure to screw it up by myself. The transition from the intake to the suction housing was horrible. There were some mismatches at the suction housing/wear ring junction as well. It simply looked like 1) my boat got a berk with crappy casting imperfections, and 2) eliminator must have been in a hurry when assembling my pump.
I'm really anxious to see whether that big 40lb lug of an impeller matched with a shouldered wear ring will improve performance much. I have a distinct feeling my pump was slipping a bit before, because when I choked my nozzle down a bit with a 3.125 insert (in an attempt to boost nozzle pressure & speed) I ended up with higher revs on the tach and slower speed on gps, as opposed to my old insert which was larger, spun less revs at top end and went faster on gps. Go figure. At any rate, the stainless impeller will fare a whole lot better than the old aluminum on the shallow rivers I run.

[twowheeledfish]

Have that new impeller detailed before you install it. They are pretty crude out of the box. It will make a difference. :)
Detailed? Please explain. It looked far from crude, and beautifully machined to me.

[MudPumper]

Detailed? Please explain. It looked far from crude, and beautifully machined to me.
They sharpen the edges and smooth the blades and yes it is pretty crude compared to a detailed impeller. Look at the edges in this pic and you can see.
http://i40.photobucket.com/albums/e208/twowheeledfish/repair3.jpg

[twowheeledfish]

10-4 man. Part of the reason those edges look a little rough is because it was run a few times in an Eagle before being swapped out for a turned down impeller... and took a few rock dings in the process. We'll clean it up before installing!

[KonaJet74]

When it's said to "Sharpen" the edges on the impeller,
what is considered sharp? Also, what would be the
differences between the bronze shouldered wear
rings and the stainless ones? I've heard the shouldered
ones impede flow? What's the hot ticket for todays
jet pumps?

[Dominator Scott]

Is that really all there is to removing the impellar or is it harder than it looks?
The impellar is the only thing I haven't messed with on the Sanger and it could probably use a fresh one considering my father has has never replaced it in the 16+ years he has owned the boat.
It's gotta be more difficult than the pics show.:jawdrop:
I am very curious as to what I would be getting into.

[malcolm]

When it's said to "Sharpen" the edges on the impeller,
what is considered sharp? Also, what would be the
differences between the bronze shouldered wear
rings and the stainless ones? I've heard the shouldered
ones impede flow? What's the hot ticket for todays
jet pumps?
All I know is there is such a thing as too sharp. I made mine where I could cut myself with it and it grabs every piece of grass and wood it eats and starts cavitating. After a couple seasons it has gotten a little better tho.

[malcolm]

I knew I read it somewhere. This is from the online repair manual at berkeleyjet.com:
The proper blade shape is similar to an airfoil with the flat side on the top of the blade and the curved shape on the underneath side of the blade when you look at the impeller from the front. The edge should not be knife sharp, but finished to about a 1/32nd radius. Try to keep the leading edges of the blades all the same length.

[IMPATIENT 1]

Is that really all there is to removing the impellar or is it harder than it looks?
The impellar is the only thing I haven't messed with on the Sanger and it could probably use a fresh one considering my father has has never replaced it in the 16+ years he has owned the boat.
It's gotta be more difficult than the pics show.:jawdrop:
I am very curious as to what I would be getting into.
its not hard at all man, just buy a impellor puller and it makes it a breeze to do. everything is straight forward and clearencing a impellor is alot easier than most let on.

[IMPATIENT 1]

When it's said to "Sharpen" the edges on the impeller,
what is considered sharp? Also, what would be the
differences between the bronze shouldered wear
rings and the stainless ones? I've heard the shouldered
ones impede flow? What's the hot ticket for todays
jet pumps?
shouldered rings seal off the impellor better imo.i've ran and installed both types and the shouldered rings always out performed the non shouldered oe types. i've ran bronze, stainless, insulated rings, ulitmate wearrings, and by far the standard bronze shouldered ring(non insulated) fits my needs the best. the ulitmate wearings are breeze to install but way to delicate for me, i like to crank my boat outta the water and the u-rings don't like that:D

[twowheeledfish]

When it's said to "Sharpen" the edges on the impeller,
what is considered sharp? Also, what would be the
differences between the bronze shouldered wear
rings and the stainless ones? I've heard the shouldered
ones impede flow? What's the hot ticket for todays
jet pumps?
I would say sharpen is the wrong word. The leading edge is not meant to be sharp, but rather squared. The impeller is supposed to break the water, not cut it.
Shouldered wear rings impeding flow? Better check your source of info there...

[Taylorman]

I just replaced my 30 yr old impeller and used an ultimate wear ring from hi tech and an inducer. Pulls really hard now.

[twowheeledfish]

Is that really all there is to removing the impellar or is it harder than it looks?
The impellar is the only thing I haven't messed with on the Sanger and it could probably use a fresh one considering my father has has never replaced it in the 16+ years he has owned the boat.
It's gotta be more difficult than the pics show.:jawdrop:
I am very curious as to what I would be getting into.
It's pretty simple really.
-remove steering cable at nozzle
-remove 8 bolts securing bowl to suction housing
-slice rtv sealant around bowl with razor (the rtv will hold the bowl in place rather stubbornly, even without the bolts)
-the bowl should pull free now
-the impeller nut comes off now
-off with the impeller (might need some gentle coaxing...lol)
-the only pita is getting the old wear ring out. Takes one part patience, and a propane torch to heat the old insulator under the wear ring to the point it melts and releases the ring.

[twowheeledfish]

I just replaced my 30 yr old impeller and used an ultimate wear ring from hi tech and an inducer. Pulls really hard now.
Did you go with alum or SS?

[Dominator Scott]

It's pretty simple really.
-remove steering cable at nozzle
-remove 8 bolts securing bowl to suction housing
-slice rtv sealant around bowl with razor (the rtv will hold the bowl in place rather stubbornly, even without the bolts)
-the bowl should pull free now
-the impeller nut comes off now
-off with the impeller (might need some gentle coaxing...lol)
-the only pita is getting the old wear ring out. Takes one part patience, and a propane torch to heat the old insulator under the wear ring to the point it melts and releases the ring.
Guess I have a project for this winter.:idea:

[IMPATIENT 1]

It's pretty simple really.
-remove steering cable at nozzle
-remove 8 bolts securing bowl to suction housing
-slice rtv sealant around bowl with razor (the rtv will hold the bowl in place rather stubbornly, even without the bolts)
-the bowl should pull free now
-the impeller nut comes off now
-off with the impeller (might need some gentle coaxing...lol)
-the only pita is getting the old wear ring out. Takes one part patience, and a propane torch to heat the old insulator under the wear ring to the point it melts and releases the ring.
try a slide hammer on the old insulated type rings next time, it'll pull em rite out;)

[twowheeledfish]

try a slide hammer on the old insulated type rings next time, it'll pull em rite out;)
Gotcha! Let's hope there's NOT a next time. The reason I like to use the torch is because it transfers some heat to the suction housing. I placed the wear ring in the freezer earlier that day... the hot suction housing/frozen wear ring combo really makes the new ring go in easy.

[IMPATIENT 1]

Gotcha! Let's hope there's NOT a next time. The reason I like to use the torch is because it transfers some heat to the suction housing. I placed the wear ring in the freezer earlier that day... the hot suction housing/frozen wear ring combo really makes the new ring go in easy.
i know what ya mean. i overhauled my tx-19's pump couple wks back and after 2wks in the deep freeze, i still had hell installing the ring into the housing:mad:

[pw_Tony]

Wow to change the impellar is looks alot easiar to change than I imagined. I'll like to tackle that on my boat after the river season :D . Where can I learn for what clearances and wear rings?

[twowheeledfish]

Wow to change the impellar is looks alot easiar to change than I imagined. I'll like to tackle that on my boat after the river season :D . Where can I learn for what clearances and wear rings?
You can find some info here:
http://www.americanturbine.com/instructions/shimming_SD309.htm

[twowheeledfish]

Suction housing cleaned up and painted...
http://i40.photobucket.com/albums/e208/twowheeledfish/repair10.jpg
http://i40.photobucket.com/albums/e208/twowheeledfish/repair9.jpg
...Done!
http://i40.photobucket.com/albums/e208/twowheeledfish/repair7.jpg
http://i40.photobucket.com/albums/e208/twowheeledfish/repair6.jpg
http://i40.photobucket.com/albums/e208/twowheeledfish/repair8.jpg

[396_WAYS_TO_SPIT]

Good job;) Now you ready to get her wet again;)

[Dan Lorenze]

Looks great!

[twowheeledfish]

Good job;) Now you ready to get her wet again;)
Thanks man! And you know I can't wait to hit the water.... headed out in a few hours. I'm chomping at the bit to see what it'll do!
Dan- thanks for the compliment!