Zenith Aircraft Builders and Flyers
Online Community of Zenith Builders and Flyers
Fuel Pump Failure
What are the signs of failure for the stock fuel pumps?
Ralph
N750RP
208 680-2561
Replies to This Discussion
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Permalink Reply by Bob Simmons on
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Beat me to it.
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Permalink Reply by John Bell on
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Different failure modes. Impeller failure will result in a change in the sound and or lower discharge pressure. Bearing structure failure will usually cause a change in sound but may not see a pressure drop.
Electrical failures are usually accompanied by changes in pressure over time or sudden. More often they just stop working.
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