Governor

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Karl
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Re: Governor

Post by Karl »

Ed McDonald wrote: ↑Fri Mar 08, 2024 10:45 pm Recently I have been problems which are likely a prop governor. At a high load setting the load will quickly drop a few per cent then recover to the original value. In the process, the engine vibrates like crazy if only for 3 or 4 seconds.

The following replay, compliments of Flysto, show what happens at 17:18:15 https://www.flysto.net/logs/dfc93kpg/d ... ck=125uaqp.
More likely the Map hose damper.

Was the SB carried out to fit it on yours?
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Ed McDonald
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Re: Governor

Post by Ed McDonald »

Thanks, Karl. Which SB? This aircraft and engines were a Fall 2021 delivery.
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Karl
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Re: Governor

Post by Karl »

Ed McDonald wrote: ↑Sun Mar 10, 2024 7:22 pm Thanks, Karl. Which SB? This aircraft and engines were a Fall 2021 delivery.
MSB-E4-029.

Reports of RPM fluctuations that were caused by pressure fluctuations in the Map system.
Dampers are very easy to fit but also easy to get the wrong way around. It would be a good idea to highlight to whoever is going to fit them that there is a right and a wrong way.
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