Pump problem...

[Prometheus Xex]

I have a Laguna Powerjet 7000. It stopped working so I replace the impeller
and bushing. I ran fine, then when I unplugged it, and restarted it, it
doesn't pump. I pulled it apart and pulled out the impeller. Everything
looks fine. Before I reseal, I checked if it turns. Yep... until I unplug,
then replug. The impeller (still exposed) is turning erratically... almost
like it wants to backwards while turning forwards. So it kind of jiggles,
but manages to turn in one direction not achieving much.

Anyone know what's up?

- Prometheus

[Go Fig]

In article
e.rogers.com>,
Prometheus Xex > wrote:

> I have a Laguna Powerjet 7000. It stopped working so I replace the impeller
> and bushing. I ran fine, then when I unplugged it, and restarted it, it
> doesn't pump. I pulled it apart and pulled out the impeller. Everything
> looks fine. Before I reseal, I checked if it turns. Yep... until I unplug,
> then replug. The impeller (still exposed) is turning erratically... almost
> like it wants to backwards while turning forwards. So it kind of jiggles,
> but manages to turn in one direction not achieving much.
>
> Anyone know what's up?

The impeller has separated from the magnet, sometimes you can epoxy
together again... but better to replace.

jay
Thu Jun 03, 2004



>
> - Prometheus
>
>

[Carl Harrison]

"Prometheus Xex" > wrote in message e.rogers.com>...
> I have a Laguna Powerjet 7000. It stopped working so I replace the impeller
> and bushing. I ran fine, then when I unplugged it, and restarted it, it
> doesn't pump. I pulled it apart and pulled out the impeller. Everything
> looks fine. Before I reseal, I checked if it turns. Yep... until I unplug,
> then replug. The impeller (still exposed) is turning erratically... almost
> like it wants to backwards while turning forwards. So it kind of jiggles,
> but manages to turn in one direction not achieving much.
>
> Anyone know what's up?
>
> - Prometheus

I had a similar problem years ago with a different make of pump and
used to turn on the pump then give the impeller a push with a cocktail
stick. It may be due to the rotor losing its magnetism.

Carl

[Sean Dinh]

I had a Laguna Utility that had the same problem once. I had to leave it running
and then put the cover back. That was the only way to make it pump.

It doesn't do that any more.

Prometheus Xex wrote:

> I have a Laguna Powerjet 7000. It stopped working so I replace the impeller
> and bushing. I ran fine, then when I unplugged it, and restarted it, it
> doesn't pump. I pulled it apart and pulled out the impeller. Everything
> looks fine. Before I reseal, I checked if it turns. Yep... until I unplug,
> then replug. The impeller (still exposed) is turning erratically... almost
> like it wants to backwards while turning forwards. So it kind of jiggles,
> but manages to turn in one direction not achieving much.
>
> Anyone know what's up?
>
> - Prometheus

[Carl Beyer]

In article >,
Sean Dinh > wrote:

> I had a Laguna Utility that had the same problem once. I had to leave it
> running
> and then put the cover back. That was the only way to make it pump.
>
> It doesn't do that any more.
>
> Prometheus Xex wrote:
>

I spray the guts up with Silicone Lube... Seems to fix it...

Carl

--
--
http://www.cobaltbluefilms.com

[KenCo]

Prometheus Xex wrote:

> I have a Laguna Powerjet 7000. It stopped working so I replace the impeller
> and bushing. I ran fine, then when I unplugged it, and restarted it, it
> doesn't pump. I pulled it apart and pulled out the impeller. Everything
> looks fine. Before I reseal, I checked if it turns. Yep... until I unplug,
> then replug. The impeller (still exposed) is turning erratically... almost
> like it wants to backwards while turning forwards. So it kind of jiggles,
> but manages to turn in one direction not achieving much.
>
> Anyone know what's up?
>
> - Prometheus
>
>

sounds like the bushing is either
tight or no good. does the impeller
shaft spin free when unplugged?





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--
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Permalon liners, Oase & Supreme Pondmaster pumps


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inconvenienced ;)

[matrix j]

Sounds like it may be a broken impeller shaft.
I fixed mine with some good old JB weld.

It's run longer with the weld than without it.

[Prometheus Xex]

Yep... it spins free (with a bit of magnetic resistance).

Xex

"KenCo" > wrote in message
...
> Prometheus Xex wrote:
>
> sounds like the bushing is either
> tight or no good. does the impeller
> shaft spin free when unplugged?

[Prometheus Xex]

Read my posts... new impeller in unit... not broken.
- Xex

"matrix j" > wrote in message
...
> Sounds like it may be a broken impeller shaft.
> I fixed mine with some good old JB weld.
>
> It's run longer with the weld than without it.
>

[Barbara2245]

"Prometheus Xex" > wrote in message e.rogers.com>...
> I have a Laguna Powerjet 7000. It stopped working so I replace the impeller
> and bushing. I ran fine, then when I unplugged it, and restarted it, it
> doesn't pump. I pulled it apart and pulled out the impeller. Everything
> looks fine. Before I reseal, I checked if it turns. Yep... until I unplug,
> then replug. The impeller (still exposed) is turning erratically... almost
> like it wants to backwards while turning forwards. So it kind of jiggles,
> but manages to turn in one direction not achieving much.
>
> Anyone know what's up?
>
> - Prometheus

The solution probably is a new impeller-magnet assembly. Last fall I
noticed that the tip at the the end was worn and for $28+ shipping got
a new one at
www.thatpetplace.com. The price may vary because my Laguna is the
5000.
Happy water gardening.

[Rodney Pont]

On Fri, 04 Jun 2004 21:41:42 GMT, Prometheus Xex wrote:

>Read my posts... new impeller in unit... not broken.

It could be one or more coils burnt out, maybe when the impeller broke
it oevrheated. Symptoms would be it will often need a flick to start it
up and once running it will be down on power. I think you said it was
doing that.

--
Regards - Rodney Pont
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