Cruzer / O-200...How many have added a bypass for facet pump? - Zenith Aircraft Builders and Flyers2024-03-28T15:36:46Zhttps://zenith.aero/forum/topics/cruzer-o-200-how-many-have-added-a-bypass-for-facet-pump?commentId=2606393%3AComment%3A699982&feed=yes&xn_auth=noYes the Facet can fail and bl…tag:zenith.aero,2021-03-22:2606393:Comment:8297752021-03-22T09:14:35.882ZJim and Amelia Isaacshttps://zenith.aero/profile/JimIsaacs
<p>Yes the Facet can fail and block fuel flow <a href="http://www.zenith.aero/forum/topics/aux-or-boost-fuel-pumps" target="_blank">http://www.zenith.aero/forum/topics/aux-or-boost-fuel-pumps</a> the Rotax 912 installation manual calls for a boost pump to push fuel forward to the engine-driven mechanical pump, and a bypass with a check valve around the boost pump, that’s what installed in my 701.</p>
<p>Yes the Facet can fail and block fuel flow <a href="http://www.zenith.aero/forum/topics/aux-or-boost-fuel-pumps" target="_blank">http://www.zenith.aero/forum/topics/aux-or-boost-fuel-pumps</a> the Rotax 912 installation manual calls for a boost pump to push fuel forward to the engine-driven mechanical pump, and a bypass with a check valve around the boost pump, that’s what installed in my 701.</p> This video might be a bit lat…tag:zenith.aero,2021-03-21:2606393:Comment:8296942021-03-21T15:01:16.836ZClint L Goschhttps://zenith.aero/profile/ClintLGosch
<p>This video might be a bit late to the party, but is certainly worth a look before planning a fuel system for an aircraft. It is more of a general piping video than a fuel system video , but explains the "bubble restriction" phenomenon far better than I could. Enjoy!</p>
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<p><a href="https://youtu.be/zdkp9N3qfkI" target="_blank">https://youtu.be/zdkp9N3qfkI</a></p>
<p>This video might be a bit late to the party, but is certainly worth a look before planning a fuel system for an aircraft. It is more of a general piping video than a fuel system video , but explains the "bubble restriction" phenomenon far better than I could. Enjoy!</p>
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<p><a href="https://youtu.be/zdkp9N3qfkI" target="_blank">https://youtu.be/zdkp9N3qfkI</a></p> Wow! Perfectly spaced! You a…tag:zenith.aero,2019-11-28:2606393:Comment:7017242019-11-28T13:05:56.580ZClint L Goschhttps://zenith.aero/profile/ClintLGosch
<p style="text-align: left;"><span style="font-size: 8pt;">Wow! Perfectly spaced! You are causing me to re-think my choice of tires, I currently have the smaller cruiser tires on mine, fine for maintained grass strips, used price was right but I wonder how my nose gear would handle a similar situation. The finish on your aircraft looks beautiful! Is it all paint or a mix of vinyl? Happy Thanksgiving all!</span></p>
<p style="text-align: left;"><span style="font-size: 8pt;">Wow! Perfectly spaced! You are causing me to re-think my choice of tires, I currently have the smaller cruiser tires on mine, fine for maintained grass strips, used price was right but I wonder how my nose gear would handle a similar situation. The finish on your aircraft looks beautiful! Is it all paint or a mix of vinyl? Happy Thanksgiving all!</span></p> I found the photo of my 750…tag:zenith.aero,2019-11-28:2606393:Comment:7017212019-11-28T10:54:08.058ZJimmy Younghttps://zenith.aero/profile/JimmyYoung
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<p>I found the photo of my 750 the day I had the off-field landing. It’s fairly flat with a lot of farm land around here. This field was as smooth as its probably going to get in this situation, so I was fortunate it was right under me. Look how the forrows align perfectly with the gear…</p>
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<p>I found the photo of my 750 the day I had the off-field landing. It’s fairly flat with a lot of farm land around here. This field was as smooth as its probably going to get in this situation, so I was fortunate it was right under me. Look how the forrows align perfectly with the gear legs! </p> Well, at this point, based on…tag:zenith.aero,2019-11-17:2606393:Comment:7005202019-11-17T16:38:48.273ZCarl Ortonhttps://zenith.aero/profile/CarlOrton
<p>Well, at this point, based on responses thus far, plus the excellent write-up and analysis by Clint, I'm leaning towards a no-pump, full gravity flow system, just like a Cessna (well, with the inclusion of an L-R-Both selector). I can always add a pump after the fact. This is a Cruzer, not a STOL, so I don't expect ridiculous angles of attack etc. The non-pump scenarios provide the highest rate of flow, close to 3.5x the typical O-200 fuel burn. Of course, I'll do nose and tail-high flow…</p>
<p>Well, at this point, based on responses thus far, plus the excellent write-up and analysis by Clint, I'm leaning towards a no-pump, full gravity flow system, just like a Cessna (well, with the inclusion of an L-R-Both selector). I can always add a pump after the fact. This is a Cruzer, not a STOL, so I don't expect ridiculous angles of attack etc. The non-pump scenarios provide the highest rate of flow, close to 3.5x the typical O-200 fuel burn. Of course, I'll do nose and tail-high flow testing once I get to that point.</p> Thanks Carl, when the weathe…tag:zenith.aero,2019-11-13:2606393:Comment:7002562019-11-13T23:56:36.084ZClint L Goschhttps://zenith.aero/profile/ClintLGosch
<p>Thanks Carl, when the weather warms up I hope to do a few quick tests on the andair fuel selector too, not expecting many surprises but I'd like to complete the data for the entire system. </p>
<p>Thanks Carl, when the weather warms up I hope to do a few quick tests on the andair fuel selector too, not expecting many surprises but I'd like to complete the data for the entire system. </p> Awesome Clint! Thank you for…tag:zenith.aero,2019-11-11:2606393:Comment:6999822019-11-11T22:04:53.473ZSteven Wardhttps://zenith.aero/profile/StevenWard
<p>Awesome Clint! Thank you for that detailed analysis! </p>
<p>Awesome Clint! Thank you for that detailed analysis! </p> Clint, now that I've read you…tag:zenith.aero,2019-11-11:2606393:Comment:6999752019-11-11T17:47:05.139ZCarl Ortonhttps://zenith.aero/profile/CarlOrton
<p>Clint, now that I've read your report 3 times, I sincerely thank you for taking the time to report, as well as the thoroughness of your investigation. You really checked out all (?) possible areas of restrictions, check valves, and bubbles! This report should be required reading for all 750-x builders!</p>
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<p>Clint, now that I've read your report 3 times, I sincerely thank you for taking the time to report, as well as the thoroughness of your investigation. You really checked out all (?) possible areas of restrictions, check valves, and bubbles! This report should be required reading for all 750-x builders!</p>
<p></p> Steven, now that you've read…tag:zenith.aero,2019-11-11:2606393:Comment:6998062019-11-11T17:45:02.445ZCarl Ortonhttps://zenith.aero/profile/CarlOrton
<p>Steven, now that you've read Clint's in-depth report below, how do you feel. I'm thinking no pump at this point since I have a Cruzer and will not (should not) have the STOL-like attitudes during climb-out or slow flight.</p>
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<p>I was a bit concerned beforehand since the Facet -105 pump supplied in my FWF kit from Zenith is somewhat less than a 3/8" pass thru, and I was concerned about the restriction. I will start with no pump but have wiring and space in place in case I need to…</p>
<p>Steven, now that you've read Clint's in-depth report below, how do you feel. I'm thinking no pump at this point since I have a Cruzer and will not (should not) have the STOL-like attitudes during climb-out or slow flight.</p>
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<p>I was a bit concerned beforehand since the Facet -105 pump supplied in my FWF kit from Zenith is somewhat less than a 3/8" pass thru, and I was concerned about the restriction. I will start with no pump but have wiring and space in place in case I need to retrofit.</p>
<p></p> Thanks Joe! That is a very h…tag:zenith.aero,2019-11-11:2606393:Comment:6998732019-11-11T00:36:35.321ZClint L Goschhttps://zenith.aero/profile/ClintLGosch
<p>Thanks Joe! That is a very high compliment coming from a guy like yourself. I saw your plane at the Zenith Open House, what a great looking aircraft! My right seat is open for you anytime.</p>
<p>Thanks Joe! That is a very high compliment coming from a guy like yourself. I saw your plane at the Zenith Open House, what a great looking aircraft! My right seat is open for you anytime.</p>