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Jeff Addict
Joined: 13 Jan 2003 Posts: 678 City: Long Island
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Posted: Jan 18, 2003 7:08 pm Post subject: Impeller |
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if never owned an inboard before so this will seem like a stupid question to most of you but whats an impeller do |
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jedsterr Soul Rider
Joined: 13 Jan 2003 Posts: 291 City: Star Idaho
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Posted: Jan 18, 2003 7:26 pm Post subject: |
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It is a posative displacement, flexible impeller pump which is driven by the belts on the front of most inboard motors.
It sucks water from the lake (intake scupper through the bottom of the boat) then pumps it through the rest of the motor for cooling.
The lake water usually passes through a filter & the tranny cooler before reaching the impeller where it's pumped to the thermostat & then on to the motor or to the exhaust for cooling.
The rubber veins on the impeller are subject to wear & should be replaced on an anual or bianual basis, as their failure can fry your motor.
-Jed |
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Jeff Addict
Joined: 13 Jan 2003 Posts: 678 City: Long Island
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Posted: Jan 18, 2003 7:29 pm Post subject: |
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thanx, i guess its kinda like the water pump on an outboard |
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jedsterr Soul Rider
Joined: 13 Jan 2003 Posts: 291 City: Star Idaho
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Posted: Jan 18, 2003 7:33 pm Post subject: |
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yeah, it's it own unit though. It mounted on a bracket & belt driven, like the alternator, or an AC or smog pump on a car. On many you can change the impeller (inside) without even removing the housing from the bracket. The replacement impellers are fairly inexpensive, 20-35 dollars.
-j |
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bluefish86 Wakeboarder.Commie
Joined: 12 Jan 2003 Posts: 1539 City: Ottawa
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Posted: Jan 18, 2003 8:03 pm Post subject: |
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Jeff, there are impellers on I/Os and outboards too you know... |
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