| Author |
Message |
    
David Cracknell
Member
Username: stromzilla
Post Number: 34
Registered: 06-2009
| | Posted on Monday, July 13, 2009 - 05:54 pm: | 
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The alarm at the control box goes off after long-idle, increase the rpm and the buzzer goes off. Also, I don't see water ejecting out the holes below the cover on the lower unit after running it in my backyard with muffs. Shouldn't I see that water ejecting after a short time of running? Water does exit out the pee-tube. Knowing this has been used in a river, I'm thinking there may be crud built-up at or near the thermostat or possibly past the theromstat in the head area. What do you guys think and is there an easy way to clear the passages? Thanks. David. |
'Bandit
Advanced Member
Username: timebandit
Post Number: 779
Registered: 09-2007
| | Posted on Monday, July 13, 2009 - 06:12 pm: |
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Impeller? |
David Cracknell
Member
Username: stromzilla
Post Number: 35
Registered: 06-2009
| | Posted on Monday, July 13, 2009 - 08:28 pm: |
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I thought about the impeller but since a good stream of water was shooting out the pee-tube I was thinking obstruction was the root-cause. How long can you go before the impeller should be replaced..I'ved heard 5 years? Is that true from a general standpoint? As far as I know this motor has never had the impeller replaced and it's 10 years old. If the motor was mine I would've already replaced it by now. |
Graham Lamb
Senior Member
Username: galamb
Post Number: 5641
Registered: 05-2007
| | Posted on Tuesday, July 14, 2009 - 12:24 pm: |
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Technically you can leave it as long as it's working.
Merc says every 3 years, personally, because my motors are stored (dry) for at least half the year, I change them every second year.
The cost of an impeller compared to the cost of an overheat is a no brainer for me. |
David Cracknell
Member
Username: stromzilla
Post Number: 40
Registered: 06-2009
| | Posted on Tuesday, July 14, 2009 - 02:38 pm: |
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Thank you for the feedback. I think I will change the impeller along with the thermostat. 10 years without a change seems like he's pushing the envelope. I'm still not convinced though that I'm getting at the root-cause of the buzzer issue. When I'm changing these items out is there a passage-way or cooling channel that I can probe around for any potential blockage? |
Graham Lamb
Senior Member
Username: galamb
Post Number: 5650
Registered: 05-2007
| | Posted on Tuesday, July 14, 2009 - 10:44 pm: |
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There is water channels and jackets in the powerhead as well as the water tube itself, and the pick-up tube that can get crudded up with minerals, salt and various other "cooties".
You normally don't troubleshoot them unless the waterpump has been serviced and the problem still exists and the thermostat and poppet (if equipped) have been at least inspected.
You just kinda play the law of averages - overheat most often caused by impeller/thermostat/poppet, then bad seals or gaskets, then a clog or hole somewhere.
So I wouldn't pull the powerhead first looking for a bad base gasket if the impeller was more than 3 or 4 years old... |
David Cracknell
Member
Username: stromzilla
Post Number: 41
Registered: 06-2009
| | Posted on Wednesday, July 15, 2009 - 08:32 am: |
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Excellent common-sense advice. Thanks again for your support. |
