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  #1   Report Post  
Bob Chilcoat
 
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Default Salvaged Spa Pumps

I picked up a couple of Waterway spa pumps (they say 5 hp on them, one is
two-speed). The pumps are fine, but the motor front bearings seem to be
worn out. I can't get the pumps off the motor shaft to replace the
bearings, but I can cut up the pumps and salvage the motors that way. These
are A. O. Smith, 220 V, 1 ph, 12 amp, 3450 rpm, capacitor start motors
(metal content).

Some questions.

Any idea what I could get for these on Ebay "as is".

What would the motors alone be worth if I replace the bearings?

Would these motors be good as compressor motors?

Any idea how to get the pump impellers off the shaft, so that I can rebuild
them and sell them as complete units? The impeller seems to be pressed or
epoxyed onto the shaft, since there is no sign of a setscrew or key. No
exposed shaft inside the pump to apply a puller. I've tried levering off
one the pumps between the front housing and back of the pump, but nothing
moves.

Any advice would be appreciated. Thanks.

--
Bob (Chief Pilot, White Knuckle Airways)



  #2   Report Post  
Don Foreman
 
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Default

On Fri, 2 Sep 2005 12:12:50 -0400, "Bob Chilcoat"
wrote:

I picked up a couple of Waterway spa pumps (they say 5 hp on them, one is
two-speed). The pumps are fine, but the motor front bearings seem to be
worn out. I can't get the pumps off the motor shaft to replace the
bearings, but I can cut up the pumps and salvage the motors that way. These
are A. O. Smith, 220 V, 1 ph, 12 amp, 3450 rpm, capacitor start motors
(metal content).

Some questions.

Any idea what I could get for these on Ebay "as is".

What would the motors alone be worth if I replace the bearings?

Would these motors be good as compressor motors?

Any idea how to get the pump impellers off the shaft, so that I can rebuild
them and sell them as complete units? The impeller seems to be pressed or
epoxyed onto the shaft, since there is no sign of a setscrew or key. No
exposed shaft inside the pump to apply a puller. I've tried levering off
one the pumps between the front housing and back of the pump, but nothing
moves.

Any advice would be appreciated. Thanks.


12 amps sounds like a 2 hp motor, a bit light for a compressor. HF
sells them new for $89.99 -- and a 3 hp (15 amp) for $84.99.
  #3   Report Post  
 
Posts: n/a
Default

Some questions.


Any idea what I could get for these on Ebay "as is".


What would the motors alone be worth if I replace the bearings?


Would these motors be good as compressor motors?


Any idea how to get the pump impellers off the shaft, so that I can
rebuild
them and sell them as complete units? The impeller seems to be pressed
or
epoxyed onto the shaft, since there is no sign of a setscrew or key.
No
exposed shaft inside the pump to apply a puller. I've tried levering
off
one the pumps between the front housing and back of the pump, but
nothing
moves.
Any advice would be appreciated. Thanks.

3450 rpm is a little fast for compressor duty, It will work but
necessatate a large pulley on the compressor and result in some power
loss.
I would try unscrewing the impellers, you should be able to tell from
the direction the pump turns wether the thread is right or left handed.
Engineman

  #5   Report Post  
 
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Default

Pool pump motors have a threaded shaft and the impellor screws on.
Don't ask how I found this out
The replacement impellor was only $11



  #7   Report Post  
Sunworshipper
 
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Default

On Fri, 2 Sep 2005 12:12:50 -0400, "Bob Chilcoat"
wrote:

I picked up a couple of Waterway spa pumps (they say 5 hp on them, one is
two-speed). The pumps are fine, but the motor front bearings seem to be
worn out. I can't get the pumps off the motor shaft to replace the
bearings, but I can cut up the pumps and salvage the motors that way. These
are A. O. Smith, 220 V, 1 ph, 12 amp, 3450 rpm, capacitor start motors
(metal content).

Some questions.

Any idea what I could get for these on Ebay "as is".

What would the motors alone be worth if I replace the bearings?

Would these motors be good as compressor motors?

Any idea how to get the pump impellers off the shaft, so that I can rebuild
them and sell them as complete units? The impeller seems to be pressed or
epoxyed onto the shaft, since there is no sign of a setscrew or key. No
exposed shaft inside the pump to apply a puller. I've tried levering off
one the pumps between the front housing and back of the pump, but nothing
moves.

Any advice would be appreciated. Thanks.


Take the cap off the back motor and there will be a slot or flats (if
not there then it will be on the front of the shaft between the
impeller and motor) to hold the shaft so that the impeller will thread
off.

When the shaft seal leaks it screws up the front bearing. They can be
a major pain to get off. The two speed is for circulation and jets,
the other is a booster pump and is probably in better condition.

Might be hard selling used pool pumps that big. Their more likely to
be from a commercial application or rich folk.
  #8   Report Post  
Bob Chilcoat
 
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Default

No sign of any seal leaks. It looks like the front bearing is bronze, and
is just worn out (motor shaft wobbles when I turn the rotor by hand).

I found the slot in the rear of the shaft behind the cap, but the impeller
is on too tight. I finally got the motor front housing off and the rotor
out, so I can clamp the rotor in a vice. I still can't budge the impeller.
With the scroll around it, I can't get anything on it to unscrew it (and I
AM turning it in the right direction) and it's too tight to reach in and
turn by hand. About the only thing I can think of is to make up some sort
of clamp out of aluminum plate, that clamps onto the impeller outer
diameter, and then turn it with a wrench of some kind. Lot of work to just
try and salvage the pump. I've also tried a strap wrench through the outlet
hole, but there wasn't quite enough room. Frustrating.

--
Bob (Chief Pilot, White Knuckle Airways)


"Sunworshipper" wrote in message
...
On Fri, 2 Sep 2005 12:12:50 -0400, "Bob Chilcoat"
wrote:

I picked up a couple of Waterway spa pumps (they say 5 hp on them, one is
two-speed). The pumps are fine, but the motor front bearings seem to be
worn out. I can't get the pumps off the motor shaft to replace the
bearings, but I can cut up the pumps and salvage the motors that way.
These
are A. O. Smith, 220 V, 1 ph, 12 amp, 3450 rpm, capacitor start motors
(metal content).

Some questions.

Any idea what I could get for these on Ebay "as is".

What would the motors alone be worth if I replace the bearings?

Would these motors be good as compressor motors?

Any idea how to get the pump impellers off the shaft, so that I can
rebuild
them and sell them as complete units? The impeller seems to be pressed or
epoxyed onto the shaft, since there is no sign of a setscrew or key. No
exposed shaft inside the pump to apply a puller. I've tried levering off
one the pumps between the front housing and back of the pump, but nothing
moves.

Any advice would be appreciated. Thanks.


Take the cap off the back motor and there will be a slot or flats (if
not there then it will be on the front of the shaft between the
impeller and motor) to hold the shaft so that the impeller will thread
off.

When the shaft seal leaks it screws up the front bearing. They can be
a major pain to get off. The two speed is for circulation and jets,
the other is a booster pump and is probably in better condition.

Might be hard selling used pool pumps that big. Their more likely to
be from a commercial application or rich folk.



  #9   Report Post  
Sunworshipper
 
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Default

On Fri, 2 Sep 2005 22:56:38 -0400, "Bob Chilcoat"
wrote:

No sign of any seal leaks. It looks like the front bearing is bronze, and
is just worn out (motor shaft wobbles when I turn the rotor by hand).

I found the slot in the rear of the shaft behind the cap, but the impeller
is on too tight. I finally got the motor front housing off and the rotor
out, so I can clamp the rotor in a vice. I still can't budge the impeller.
With the scroll around it, I can't get anything on it to unscrew it (and I
AM turning it in the right direction) and it's too tight to reach in and
turn by hand. About the only thing I can think of is to make up some sort
of clamp out of aluminum plate, that clamps onto the impeller outer
diameter, and then turn it with a wrench of some kind. Lot of work to just
try and salvage the pump. I've also tried a strap wrench through the outlet
hole, but there wasn't quite enough room. Frustrating.


Did I mention they can be a major pain in the ass? I'm having trouble
following how you got some of it apart without taking the impeller off
first. Some of the brass impellers have two holes for those special
wrenches that I can't recall what their called, you could drill your
own. Leather gloves or an oil filter wrench are about the only options
if its plastic. You could destroy the impeller and clamp the crap out
of the rest it with vice grips, it has to come off dead or alive.
There are many types of wet ends, sounds like you've got one of those
horrible ones. You've got to understand that its been in chemicals for
years.

I only dick around with them for maybe 15 mins. and can see that it's
time to break the bad news to the customer.
  #10   Report Post  
Proctologically Violated©®
 
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Default

5 HP w/ the rotor locked, mebbe.... Like how Sears rates their motors.
----------------------------
Mr. P.V.'d
formerly Droll Troll
"Don Foreman" wrote in message
...
On Fri, 2 Sep 2005 12:12:50 -0400, "Bob Chilcoat"
wrote:

I picked up a couple of Waterway spa pumps (they say 5 hp on them, one is
two-speed). The pumps are fine, but the motor front bearings seem to be
worn out. I can't get the pumps off the motor shaft to replace the
bearings, but I can cut up the pumps and salvage the motors that way.
These
are A. O. Smith, 220 V, 1 ph, 12 amp, 3450 rpm, capacitor start motors
(metal content).

Some questions.

Any idea what I could get for these on Ebay "as is".

What would the motors alone be worth if I replace the bearings?

Would these motors be good as compressor motors?

Any idea how to get the pump impellers off the shaft, so that I can
rebuild
them and sell them as complete units? The impeller seems to be pressed or
epoxyed onto the shaft, since there is no sign of a setscrew or key. No
exposed shaft inside the pump to apply a puller. I've tried levering off
one the pumps between the front housing and back of the pump, but nothing
moves.

Any advice would be appreciated. Thanks.


12 amps sounds like a 2 hp motor, a bit light for a compressor. HF
sells them new for $89.99 -- and a 3 hp (15 amp) for $84.99.



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