EGT and CGT - Zenith Aircraft Builders and Flyers2024-03-19T04:54:16Zhttps://zenith.aero/forum/topics/egt-and-cgt?feed=yes&xn_auth=noAnother Relevent presentation…tag:zenith.aero,2022-08-08:2606393:Comment:8756272022-08-08T20:28:19.635ZEric Genzlingerhttps://zenith.aero/profile/EricGenzlinger
<p>Another Relevent presentation by Mike Bush regarding EGT</p>
<p>"The EGT Myth" webinar for the EAA</p>
<p><a href="https://www.youtube.com/watch?v=VvxeEQC-7p8&t=3077s" target="_blank">https://www.youtube.com/watch?v=VvxeEQC-7p8&t=3077s</a></p>
<p></p>
<p>Another Relevent presentation by Mike Bush regarding EGT</p>
<p>"The EGT Myth" webinar for the EAA</p>
<p><a href="https://www.youtube.com/watch?v=VvxeEQC-7p8&t=3077s" target="_blank">https://www.youtube.com/watch?v=VvxeEQC-7p8&t=3077s</a></p>
<p></p> I only run 100LL when forced…tag:zenith.aero,2022-08-08:2606393:Comment:8756192022-08-08T18:27:30.672ZJohn Austinhttps://zenith.aero/profile/JohnLAustin
<p>I only run 100LL when forced to such as on a long cross-country, otherwise I run 93 unleaded/no ethanol and it works great. I'm very fortunate to have a gas station nearby that has all grades of "pure" gas/no ethanol!</p>
<p>John</p>
<p>I only run 100LL when forced to such as on a long cross-country, otherwise I run 93 unleaded/no ethanol and it works great. I'm very fortunate to have a gas station nearby that has all grades of "pure" gas/no ethanol!</p>
<p>John</p> Thanks John,
I certainly p…tag:zenith.aero,2022-08-08:2606393:Comment:8757012022-08-08T18:18:46.259ZEric Genzlingerhttps://zenith.aero/profile/EricGenzlinger
<p>Thanks John,</p>
<p> I certainly plan to watch all of Mike Bush's webinars. He has several good ones regarding cylinders and exhaust valves that are real eye opening. I didn't realize how nasty the side affects of 100LL fuel are on exhaust valves. I have read reports that Jabiru exhaust valves stick and can't help but think that 100LL was the sole contributor to the problem. I know that just like Rotax, Jabiru engines are not designed to use 100LL although they can but user beware. I…</p>
<p>Thanks John,</p>
<p> I certainly plan to watch all of Mike Bush's webinars. He has several good ones regarding cylinders and exhaust valves that are real eye opening. I didn't realize how nasty the side affects of 100LL fuel are on exhaust valves. I have read reports that Jabiru exhaust valves stick and can't help but think that 100LL was the sole contributor to the problem. I know that just like Rotax, Jabiru engines are not designed to use 100LL although they can but user beware. I don't believe Jabirus have the rotating exhaust valve caps that Lycomings and Continentals have to mitigate the fouling effects of 100LL on exhaust valve stems. I would love to hear about Jabiru owners experiences using 100LL over several hundred hours of operations. </p>
<p></p> You are spot-on! Years ago, I…tag:zenith.aero,2022-08-08:2606393:Comment:8755212022-08-08T17:15:00.149ZJohn Austinhttps://zenith.aero/profile/JohnLAustin
<p>You are spot-on! Years ago, I heard one of Mike's seminars on EGT/CHT and it made sense then and it makes sense now! There are so many variables that affect EGT's that they certainly don't represent absolute values! I'm much more concerned with CHT's and definitely think you should have 6 probe CHT monitoring on the 3300!</p>
<p>John</p>
<p>N750A</p>
<p>You are spot-on! Years ago, I heard one of Mike's seminars on EGT/CHT and it made sense then and it makes sense now! There are so many variables that affect EGT's that they certainly don't represent absolute values! I'm much more concerned with CHT's and definitely think you should have 6 probe CHT monitoring on the 3300!</p>
<p>John</p>
<p>N750A</p> Good timing. I'm about to di…tag:zenith.aero,2022-08-08:2606393:Comment:8757932022-08-08T17:11:50.790ZDouglas Binderhttps://zenith.aero/profile/DouglasBinder
<p>Good timing. I'm about to dive down that rabbit hole so any information is appreciated. I'll watch this tonight.</p>
<p>Good timing. I'm about to dive down that rabbit hole so any information is appreciated. I'll watch this tonight.</p>