Originally Posted by
Lead Balloon
Folklore.
Aggressively lean for all ground ops (such that any attempt to apply more than a little power will result in stumbling rather than increased power). Shut it down by pulling the mixture at idle, as soon as you no longer need the fan running.
(For entertainment purposes, can you post the explanation, by the brainstrust that came up with that 'technique', as to the technical underpinnings for it?)
The brainstrust being Lycoming. This procedure is recommended by Lycoming, it can be found on page 66 of the Lycoming Flyer Key Reprints. This is a document containing maintenance and operating tips produced by Lycoming.
the procedure is also mentioned in the following Lycoming Service Letter:
https://www.lycoming.com/sites/defau...%20Fouling.pdf