Question about Jacuzzi Pump Impeller,3/4HP

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How to install a impeller kit for my jacuzzi water pump

I know how to put it all together except the disk that goes against the diffuser this plastic ring has a lip on one side and i don't know witch side it faces towards the impeller or the diffuser . if you can help it would be great thanks

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The lip faces away from the impeller

Posted on Feb 24, 2009

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I am rebuilding a Northstar pump. I thought I had an o-ring between the diffuser and the impeller ring when disasembling. I don't see the on the schematic however.


The impeller ring moves freely and does not use an o ring. The front of the diffuser does have one. It sounds like they gave you an extra. BTW I have found that Northstar pumps get about 4 years out of their motors. That is about half the average life. I hope you are getting longer than 4 years. If not, it may be worth changing to a different pump.

Jan 03, 2013 | Hayward Pool & Spa

1 Answer

I have this pool pump Jandy Stealth SHPF2.0 that started making loud noises. I took the Diffuser and Impeller out, checked the main shaft for any play, or any derby in the impeller, parts look...


you have posted your question under category "chain saws". Please repost under the pools and spas category so that the correct expert can assist you.

Dec 28, 2010 | Garden

1 Answer

Pump seal is leaking water. I removed the screws holding the pump together. How do I remove the impellor to get at the seal?


This is from one of my previous posts, may be some extra steps, but should cover what you need... Turn off the electric first. Now split the pump in two by removing the large clamp or 4-6 bolts holding the two halves together. (not the 4 bolts holding the motor to seal plate, but the the bolts holding the seal plate to the seal plate housing). Once you remove the clamp or bolts, the motor with seal plate, diffuser, and Impeller can all be pulled back away from the pump. Then disconnect the electrical from the motor and you can pull the motor with the seal plate, and impeller all the way out and work on it. To get to the impeller, you need to remove the diffuser (plastic housing that goes around the impeller) usually by a series of 3 to 6 small screws. To remove the impeller you need to lock the motor and unscrew impeller. Depending on the motor, you remove a cap in the middle of the tail piece and hold with a wrench, or remove a cap that covers the whole end and grab the shaft with a wrench (usually 7/16") by sliding it under the thermal overload switch, or removing the capacitor for even easier access. Once you've locked the shaft, you can just unscrew impeller. If the impeller has a bolt or screw in the middle remove that first. this screw will be reverse thread so make sure you don't turn the wrong way and break or strip. If there is no screw, or after you've removed it, just spin the impeller off (standard thread). If you can't do it by hand and assuming you don't have an impeller wrench, be very careful and use a large pliers, pipe wrench, or strap wrench to loosen it. After that you unbolt the motor from the seal plate, pull the seal plate away from motor (this removes half the seal), and then pop the other half of the seal from the seal plate. Make sure to replace the shaft seal, and use a tiny bit of pool lube on the rubber parts when installing, but keep the white ceramic, and black graphite surfaces 100% free of any dirt, grease, etc while working with them. Installation is pretty much just the reverse. Install half the seal into the seal plate. Install the seal plate onto motor and bolt into place. Install other half of seal onto shaft. Screw impeller onto shaft and install screw (if one was there to start with) in center of impeller (reverse thread). install diffuser over impeller make sure it is centered and doesn't rub the impeller hub. Install new diffuser and valute o-rings. Hookup wiring before re-attaching to rest of pump. Clamp or bolt back together. Pour plenty of water into pot to prime and flip the motor on for a sec or two. Pour some more water. Install pot lid. You should be good to go. Keep in mind there are many different pumps and some variations to the above instructions, but the above should cover most situations. Hope this helps. If you need further assistance post a reply in the comments, and don't hesitate to leave a good thumb rating if you found this helpful. Thanks, and good Luck!

Oct 03, 2010 | Dynamo ABOVEGROUND POOL PUMP - 1.5HP -

1 Answer

How do I remove existing motor and replace it with a new one ? Hayward 2.0 hp # SP2615X20 Thank you


Turn off the electric first. Now split the pump in two by removing the large clamp or 4-6 bolts holding the two halves together. (not the 4 bolts holding the motor to seal plate, but the the bolts holding the seal plate to the seal plate housing). Once you remove the clamp or bolts, the motor with seal plate, diffuser, and Impeller can all be pulled back away from the pump. Then disconnect the electrical from the motor and you can pull the motor with the seal plate, and impeller all the way out and work on it. To get to the impeller, you need to remove the diffuser (plastic housing that goes around the impeller) usually by a series of 3 to 6 small screws. To remove the impeller you need to lock the motor and unscrew impeller. Depending on the motor, you remove a cap in the middle of the tail piece and hold with a wrench, or remove a cap that covers the whole end and grab the shaft with a wrench (usually 7/16") by sliding it under the thermal overload switch, or removing the capacitor for even easier access. Once you've locked the shaft, you can just unscrew impeller. If the impeller has a bolt or screw in the middle remove that first. this screw will be reverse thread so make sure you don't turn the wrong way and break or strip. If there is no screw, or after you've removed it, just spin the impeller off (standard thread). If you can't do it by hand and assuming you don't have an impeller wrench, be very careful and use a large pliers, pipe wrench, or strap wrench to loosen it. After that you unbolt the motor from the seal plate, pull the seal plate away from motor (this removes half the seal), and then pop the other half of the seal from the seal plate. Make sure to replace the shaft seal, and use a tiny bit of pool lube on the rubber parts when installing, but keep the white ceramic, and black graphite surfaces 100% free of any dirt, grease, etc while working with them. Installation is pretty much just the reverse. Install half the seal into the seal plate. Install the seal plate onto motor and bolt into place. Install other half of seal onto shaft. Screw impeller onto shaft and install screw (if one was there to start with) in center of impeller (reverse thread). install diffuser over impeller make sure it is centered and doesn't rub the impeller hub. Install new diffuser and valute o-rings. Hookup wiring before re-attaching to rest of pump. Clamp or bolt back together. Pour plenty of water into pot to prime and flip the motor on for a sec or two. Pour some more water. Install pot lid. You should be good to go. Keep in mind there are many different pumps and some variations to the above instructions, but the above should cover most situations. Hope this helps. If you need further assistance post a reply in the comments, and don't hesitate to leave a good thumb rating if you found this helpful. Thanks, and good Luck!

Oct 02, 2010 | Hayward 2HP Pool Pump Motor A O Smith...

1 Answer

I have a 1hp whisperflo (we24). It became noisy but was still pumping normally so I sent it to get fixed and they changed the bearings. When it came back the flow was down by about half...so much that my...


Their is a wear ring that goes on the front of the impeller. Be sure that is there and on right. Most people will put this on with the large side against the impeller but it goes on with the large side out. This is so when the pump starts it will slide forward and give you all the pressure you can get. Also make sure you have the "O" ring on the front of the diffuser. It will help to seal and divert the water in the direction it's suppose to go.
Without these on correct the water can go from the pressure side of the impeller around the diffuser and back to the front of the impeller again. Loosing up to 30% of your pressure.

Sep 06, 2010 | Pentair 3hp Whisperflo Pool Pump In -...

1 Answer

How to install the motot?


Turn off the electric first. Now split the pump in two by removing the large clamp or 4-6 bolts holding the two halves together. (not the 4 bolts holding the motor to seal plate, but the the bolts holding the seal plate to the seal plate housing). Once you remove the clamp or bolts, the motor with seal plate and impeller and diffuser can all be pulled back away from the pump. You need to remove the diffuser (plastic housing that goes around the impeller) usually by a series of 3 to 6 small screws. Then disconnect the electrical from the motor and your can pull the motor with the seal plate, and impeller all the way out and work on it. To remove the impeller you need to lock the motor and unscrew impeller. Depending on the motor, you remove a cap in the middle of the tailpiece and hold with a wrench, or remove a cap that covers the whole end and grab the shaft with a wrench (usually 7/16") by sliding it under one of the components (not sure exact part off top of my head have to look at it) and then turning impeller. If the impeller has a bolt or screw in the middle remove that first. It should be reverse thread so make sure you don't turn the wrong way and break or strip. If there is no screw, or after you've removed it, just spin the impeller off (it should be counter clockwise standard thread). If you can't do it by hand and assuming you don't have an impeller wrench, be very careful and use a large pliers, pipe wrench, or strap wrench to loosen it. After that you unbolt the motor from the seal plate, pull the seal plate away from motor (this removes half the seal), and then pop the other half of the seal from the seal plate. Make sure to replace the shaft seal, and use a tiny bit of pool lube on the rubber parts when installing, but keep the white and black ceramic surfaces 100% free of any dirt, grease, etc while working with them. Installation is pretty much just the reverse. Install half the seal into the seal plate. Install the seal plate onto motor and bolt into place. Install other half of seal onto shaft. Screw impeller onto shaft and install screw (if one was there to start with) in center of impeller (reverse thread). install diffuser over impeller make sure it is centered and doesn't rub the impeller hub. Install new diffuser and valute o-rings. Hookup wiring before re-attaching to rest of pump. Clamp or bolt back together. Pour plenty of water into pot to prime and flip the motor on for a sec or two. Pour some more water. Install pot lid. You should be good to go. Keep in mind there are many different pumps and some variations to the above instructions, but the above should cover most situations. if something doesn't sound right let me know by commenting on this post, or sending email and I'd be glad to clarify. Good Luck!

Aug 03, 2010 | AO Smith Pool Pump Motor 1HP Square Flange...

1 Answer

Looking for manual, exploded view for Jacuzzi 1LB-S/A pump; detailed instructions on how to remove pump from motor Ron from Canada


When you loosten the lock ring on the pump if it runs at all, just turn the pump on for a second and it will pop apart. If it dosen't run you will need to gently yet forcefully pry the halfs of the pump apart. As soon as you can get some liquid soap into the pump housing to lube it all the way around. I belive the seal plate on that one is set back into the housing about an inch or two. Excuse me, three to five mm, (Americans what are you gonna do) Don't use oil for this as it's not good for the plastic or the "O" ring. Although the skinny little tube that comes with penrtrating oil is the perfict way to get into this spot. As you work the seal plate out once you hit the soap it will seem to jump right out. This is the part most people have trouble with.
Once it's free, with the wireing unhooked. get it to a bench to safe guard the parts.
First you will remove the Diffuser or water slinger this is a cover over the impeller. (most of what I tell you will be kind of generick), this piece will have five or six screws holding it in place. When you pull it off their will be a wear ring (I think) this will go on the front of the impeller and just slides off, it may drop off when you pull the diffuser off. It has a wide end and a thin end the thin end goes to the impeller. Many of these are marked on a lot of pumps but it seems natchural to put the wide side to the impeller. This is not the case.
Now on many models their is a impeller screw in the center of the impeller holding it in place. This is a left hand screw. Simpley hold the impeller in place and turn the screw clockwise to loosten and remove it.
Depending on the style of motor you will have to go to the back of the motor and hold the shaft. Some have a small end cap that you pry off and hold the shaft with a wrench and some you remove the whole back caseing and need to get a small wrench into the shaft under the cintrifical switch that is mounted on the end of the shaft. be careful when you do this and if components on the back of the motor are giveing you a hard time getting around them, remove them, as you can break them or bend them. Once you have the shaft secure unscrew the impeller with your hand if you can (this is right handed) If you can't you may want to get someone to help hold the shaft for you and take a flat blade screwdriver and put it into a vein of the impeller and give it a gharp wack with a mallet to loosten it up and start it spinning. If you do this right some times it will come spinning off, so be careful not to let it go bouncing across the floor. At this point I get real foggy as to the type of seal that is in the pump. If half the seal came off with the impeller your in good shape. If the whole of the seal is still in the pump take a pair of waterpump pliers (Channel Locks) and grab the front half of the seal and wiggle back and forth to get it off the shaft. To remove ether type of seal you may have to worry it off as the rubber on the seal will stick to ether the motor shaft or the impeller shaft with time.
After the impeller is off and the front of the seal removed (pay strict attention to how the seal comes off as putting seals in backwards is common) All you need to do is remove the four bolts that hold the motor in place.
Reverse this proceidure when you put it back together. Being sure to lube all rubber on the seal and all "O" rings as you go. Once again don't use Vasoliene or oil to lube these as the petroleim will hurt the rubber. A silicone or teflone base grease is best. When spinning the impeller back on don't tighten it past snug as the left hand screw will hold it just fine an it will set it self the first time the motor kicks on. Be sure the wear ring goes on with the wide side out and the diffuser lines up the way you took it off. With the "O" rings lubed the whole thing should slide back together easly and set the lock ring, fill pump with water and your all set to go.
I hope you can follow my rambelings and good luck to ya.

Nov 02, 2009 | Jacuzzi Cyget In Ground Pool Pumps

1 Answer

Which way does the plastic wear ring slip on the impeller, with the smaller dia. facing the impeller or the other way?


Yes the small end goes to the impeller with the flange out. when the pump kicks on the water presure on the outside of the impeller pushes it out against the diffuser and stopps the loss of pressure there and it makes the pump as efficent as it is.

Sep 29, 2009 | Waterway Above Ground Hi Flo Pump

1 Answer

Removal and installation of diffuser and impeller kit


All jucuzzi pumps are some of the most difficult to repair.Pump front should seperate from body(volute) of pump by means of screws, or some kind of band. Diffuser should have ss screws, or
be held in plsce by notches or both. Impellor spins counter clockwise to come off. Can only remove impellor with impellor wrench, or very strong hand. Rear of motor must be held in place with normally a 7-16 wrench, allen head wrench or screwdriver. Depends on manufacturer of motor. Then impellor can be removed!
Should replace shaft seal under impellor. Can seperate body of pump from motor by turning four outer bolts on back of motor. Must mark rear cover of motor so lines up exact for reassebly. Ussually 1/4 inch socket wrench.Seal can be pushed out from back to front with the corrrect size socket and a very light hammer.
Try to factory Jacuzzi seal, they are better than aftermarket.
Coat rubber on seal with light silicone, and press back into place without touching or marring seal face. Best way is use other half of seal (spring piece) to gently but firmly reseat seal. Examine body from rear to make sure seal seats. Reassemble as taken apart, or just take to a qualified service tech at a well established pool/spa place. Kirk

Feb 13, 2009 | Jacuzzi Diffuser, 1 1/2 - 3 Hp...

1 Answer

Pump won't shut off


You need a new impeller kit. Does any one know where to find one?

Jan 21, 2009 | Jacuzzi ALADDIN GO-KIT14 JACUZZI MAGNUM...

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