This time it occurred over vineyards, with no safe place to land so the plane was destroyed. Another guy with a Zenith lives close to AeroMomentum in Florida, he also ordered his engine a few weeks in advance of us. I understand that it is a collaboration. The engine is offered as a standard version with 117 hp @ 5800 rpm or 132 hp @ 6500 rpm, very similar to the Viking 130, which we were also considering. Tweet Aeromomentum wants to be part of the effort to help boost the economy and get our customers, country and the world back to normal so are offering our best ever sales event. Several parts in the plane, in addition to the cowling were damaged as a result of the metal that flew off the spider at a high speed. For all 305 hours to-date, that this engine had been using excessive oil and Eggenfellner suggested we remove his very fancy “Viking” aluminum cylinder head cover and replace it with the standard Honda Fit plastic cover, requiring an added an oil vent hose, which I did at a cost of several hundred dollars. The Viking 130 puts out 130 hp at 5,450 hp. When I met him and Lilli, the lady who is handling the sales, at Airventure, my good impression was confirmed: Super friendly, humble and (we felt) honest. Looking to hear from folks who have real world, practical experience with either an Aeromomentum or Viking engine in a home built. I have not seen data from honda so unable to comment further. This bolted-together flywheel/spider is in my hanger for inspection There is about 1/” play between flywheel and spider. We expect to receive the firewall forward kit, minus the cowling, in September. I also think you should refund the charge for the second set of rubber linkages since you sent a spider that was 3/16ths-inches thicker that the last one while your video called for extending the transmission only 1/8th-inch to accommodate it without notifying me or modifying your installation procedures. Viking never notified us that there was a known defect and when I questioned him about it he told me to look at a very obscure note he had placed on his website. I spoke with them for about a 1/2 hr at Oshkosh this year. When I met him and Lilli, the lady who is handling the sales, at Airventure, my good impression was confirmed: Super friendly, humble and (we felt) honest.They are still working on the firewall forward kit, we agreed to be Beta customers. We decided to go with the standard, low profile, 117 / 132 hp version, as we didn't feel like spending another $3,500 for the additional 14 horses the beefed up version would provide. Visit HomebuiltHelp.com for the latest DVD titles. This is what the O-200 cowling looks like: I will keep you guys posted about our progress. Maybe Aeromomentum has all this stuff worked out, but it's not easily accomplished. Custom Upholstery Kits for your Zenith Aircraft: Flying On Your Own Wings: A Complete Guide to Understanding Light Airplane Design, by Chris Heintz. Next we measured the thickness of the base of the old spider (it is 7/16th-inch) compared to that of the new one which is 5/8th-inch thick. But it's not easy finding reviews from actual users. For example, while their engine puts out 132 hp at 5,800 hp, they claim that the Viking 130 needs 6,600 rpm for the same power. Attached find picture of the failed part, which caused a coolant line failure, which stopped the engine. If we ever need spare parts, they will probably be easier to obtain for the stock version. Last edited by vigilant104 on Mon Jul 30, 2018 1:46 pm, edited 1 time in total. Pretty impressive and I believe unique in the industry! So he told me that the centering we did, based upon your video, was adequate! Aeromomentum, Viking etc. Further, stating "Viking 110/130 is a used engine removed from a totaled junk yard wreck" is purposely misleading about the engine itself. We expect to receive the firewall forward kit, minus the cowling, in September. I watched one of Viking videos online and found SEVERAL build issues that make me worry about the long term use of such motors. Glad you are blazing the trail Oliver. To me this sounds like failure to accept responsibility and disregard for the wellbeing of his customers. Eggenfellner / Viking sent new parts at no charge claiming he mistakenly had failed to weld original pins, which were only pressed onto the spider. No experience with either of those but do have experience with Jan Eggenfellner (creator of Viking) and his older Subaru kits. New comments cannot be posted and votes cannot be cast. Are you planning on an oil cooler? I can't speak with any experience either way, but this article by the owner of AM has convinced me to seriously consider it as an option. Not long until we get ours! My engine monitors showed I was getting no electric charge before takeoff so I looked at the engine and discovered that a free spinning pulley supporting the engine alternator belt fell off while still on the ground. Online Community of Zenith Builders and Flyers. After 397 hours, one of the three pins on the spider that connects the rubber linkage once again broke, this time it occurred on takeoff causing engine coolant tube failure and coolant leakage. Aeromomentum is on my short list. Note that where were no instructions at the time regarding how to make this replacement. These engines are come out of fender benders where the air bag has gone off, but the the engine is untouched. I have heard the same exact thing! Very impressive, particularly considering that he is promoting his engines with a TBO of only 1,500 hrs. Jan made jest of the fact on the internet, mentioning me by name, announcing that I had put the rubber linkage on backwards. With 417 hours on engine the linkage between the gear box and flywheel again failed (less than 20 hours since being replaced). Note that the YouTube video instructions regarding how to put these on was not available until months after he sold me his replacement (see 2/12/16 paragraph). I'll be following as well! Here is a photo of the damage that required me to purchase a new rubber linkage from Viking (~$100). And eventually you will be ignored. AeroMomentum also offers a beefed up version, which makes, as indicated on their website, 131 hp @ 5800 rpm and 147 hp @ 6500. Very impressive, particularly considering that he is promoting his engines with a TBO of only 1,500 hrs. We are offering all of our standard version engines at $500 off and Free Exhaust Header and Radiator ! Still, I think they are interesting engines. Sort by. share. Some of the issues where using nylon lock nuts near the exhaust. lighter than the Viking 130. The aluminum parts will act as a heat sink to the surrounding air while the plastics will act to insulate the engine. I am not sure, if this is still the plan, but was originally told that the cowling would be based on the O-200 cowling, minus the fat "chin" for the O-200 air intake. I hope that we made the right decision, but feel so far good about it. AeroMomentum also advices against the installation of a header tank, what will save same additional weight, compared to the Viking, and also make the installation less complex. save hide report. No way I would pay his prices for a bad build. 4/1/17 - 4/20/17 I ran the engine for 15-minutes yesterday without any rubber shredding issues, but need to know if you think that the compression while running the engine for ½ hour while the rubber disintegrated last week caused any damage to the transmission. They are still working on the firewall forward kit, we agreed to be Beta customers. Unknown date and engine hours (this was not put in engine log), Pin recovered after it broke off the spider, Base of spider spit and pins holding rubber linkage missing, Destroyed N422ES Zenith CH 701 upon rolling into a ditch after touchdown. HomebuiltHelp has a nice interview with Mark on his YouTube channel: https://youtu.be/xWOj5_0DoQI, Share !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); Unknown date and engine hours (this was not put in engine log) 94% Upvoted. Ultimately, the main reasons to choose AeroMomentum were the relatively low weight, good power, that they have been selling their engines for over 10 years to airboat customers, the attractive price and the very good impression I had of Mark, the owner. Those engines look very interesting. This compression caused the rubber linkages to disintegrate. Another reason was, that the more powerful version contains custom made pistons and some other modifications. The highest time engine accumulated over 4,000 hours without any issues, in a permanent full-throttle fishing net towing application. He always responded fast and detailed to my e-mails and was very patient and friendly on the phone. 5/22/16 Pre-cut panel, power distribution panel, Approach Fast Stack harnesses, Dynon and Garmin avionics, and more. Bill Sherlock and I changed out damaged gearbox, linkage, aluminum coolant tubes, and geared flywheel (which had all been damaged. for your Zenith: Custom instrument panels are now available directly from Zenith Aircraft Company exclusively for Zenith builders and owners. We should have been notified individually. power and because they believe that pilots do not want to have their engines screaming at 6500 rpm. Powered by, Badges  |  The engine is supposed to be delivered in October, the cowling towards the end of the year. HomebuiltHelp has a nice interview with Mark on his YouTube channel. My point is not to debate or prevent Viking engine sales, but to suggest that non-scientific product claims are redundant and detrimental to purchasing considerations. I also like that the AM15 engine is only a little bit heavier than a 100 hp Rotax 912iS, but almost 40 pounds (!!)

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