Clone Wars! 1st Customer installed Rotax "Clone" ZD Aircraft Engine - Zenith CH701 - MMATT Channel

Pilot, Builder, Customer gives real world feedback on this NEW Aircraft Engine
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[@tomklitsch6638]

I have been following Matt for about 3 to 4 years. In watching his videos he wants to be as safe as possiable and I would trust his oppinion on his product reviews.

[@straightchad8059]

Need to see the inside of the engine after 100 hours of flight operations

[@SkyJeep701]

Oh and Matt, please troubleshoot your pitot static system- you should have an airspeed indication on a 701 during climb out regardless of your deck angle.

[@delvinal5583]

I think this motor looks good. Seeings how it's a clone it would be just the ticket to put it in a Savannah. Then put the combo on some cloned floats. I've been reading some 1959 and up eaa mags lately and an article on using alt engines brought up the fact that the engine is your life insurance.Vw 1200's and Ford model a's were used in some planes. Some model a's were used air cooled by chiseling off the water jacket and using a finned alum head.Wild. Pietenpols and air campers worked well with them. Different times. The idea of 100g plus homebuilts today leaves me dumbstruck. Resale values to be determined. Great vid, thanks for the info on this new motor.

[@benschrader238]

Amsoil, For your oil sample. The founder was a jet pilot who designed the first industry leading synthetic oil. And the US military was his first customer. A 15- 40 diesel oil with a military rating on the label, Used in everything,tanks etc. Has a rust prevention rating for internals for 12 months. A firm believer in the product line and many used on my farm over the years

[@jimboagogo]

Awesome interview great to hear from someone with first hand experience! Thanks for your views Matt!

[@royshobe6642]

Thanks for making this video

[@jhaedtler]

Much like Harbor frieght did with the Honda clone engines! Or like the clone to the PT-6 turbo prop engines!

[@tomcoryell]

Harbor Freight clones PT-6 turbines?😂😂😂 I’m in!

[@JMOUC265]

Great to follow alongside and see enough details to feel like I experienced it firsthand. Thanks for the video.

[@livfreelee]

Zongshen Engines are known to be well made, reliable, as well as affordable. They are in a wide variety of applications for some time now. I have a 450 Kove Rally motorbike with a Zongshen, so I have looked into them prior to purchase.

[@DeadRoman]

Lol. Suprised to see it mmatt. Been following him a while.

[@robertlafnear7034]

On a different subject here..... can you bring us an update on the DR Chinook and the new owners... Want one but need to know that they are UP & RUNNING and stable and I know You might be the one to inform us. Thanks 👍

[@ExperimentalAircraftChannel]

I have inquired. They aren't quite ready to "go public" just yet. I will keep on them though! :-)

[@nzkiwi9]

Also please add Top Rudder to your list. They were recently sold & are supposedly putting the Ruckus into production.

[@craigsanders6925]

@@nzkiwi9 Bushcats no longer being made as well

[@sledawgpilot]

@@craigsanders6925😢

[@photon1972]

Curious to know what EFI he’s planning to install? Edge kit?

[@ericsd55]

What a kick in the balls for the people at Rotax to endorse this theivery. And isn't Rotax owned by Bombardier, a Canadian company?

[@oneninerniner3427]

Oh I'll betcha they don't endorse it, There's just nothing they can do about it. China don't care if you have a patent or something. Lol And Rotax Engines are built in Austria. But yeah BRP is Canadian.

[@fly4fun24]

Even though I will neve r buy a chinese engine for my airplane, the discusting monopoly and higher prices of Cont. Lyco Rotax engines make me puke ,, Ihope this is just an wake up call For these rulers manufacturers...

[@craigdowden4788]

@@fly4fun24 This cheap copy would have never been available if Rotax hadn't done all the development. If they had to start from ground zero and do their own design work (just like Rotax had to), you can bet the price would not be as good. I have owned a lot of Chinese knock off engines. They start off great, but don,t seem to last the distance.

[@OtterFlys]

Thanks!

[@OtterFlys]

I’m thinking of how ironic it is that the need for engines to power Iranian drones used by Russians against Ukrainian forces armed by America resulted in Chinese engines that were affordable to flying addicts like me. Good on ya Mmatt for trying it first. Love this channel.

[@ExperimentalAircraftChannel]

THANK YOU! Very much appreciate your support! :-)

[@Mike-01234]

@@OtterFlys The Iranian made Shahed-136 drone Russia is firing into Ukraine is powered by a 2 stroke 4 cylinder opposed engine called the Mado MD-550 it's a copy of a German engine called Limbach Flugmotoren L-550. First mass produced in Germany in the 1980's for ultralights. Weight is 50 lbs with 50 HP turns 7500 rpm.

[@Factory400]

If Harbor Freight made aero engines...... 😮

[@grannyblinda]

Do a lab test on the oil at oil change?

[@nickr5658]

It’s probably not a serious knockoff “yet,” however they will endup in drones and will eventually be very good if they sell enough. Rotax has enjoyed a monopoly for a while. Doubt it will have much impact other than for the cheap kit builders

[@markthibault8579]

Oil analysis would be well worth doing at each change.

[@oneninerniner3427]

-20°C = -4°F. Banana belt! lol. we can hit -20-40°F winter in NW minneota.

[@russellesimonetta9071]

Not real precise but C works out to Centigrade times two plus thirty . It gives an approximate. O times O plus thirty gives you 30. But get closer the higher you go then really high gets out of wack again.

[@alanswanson5642]

Will they be at sun and fun?

[@patrickmckowen2999]

👍

[@ele4853]

I'm loving this! About time for the Chinese to clone rotax and challenge their absurdity about prices! What an expensive toy like engine it is. I follow rotax since the "famous" 532 two stroke. Since then I followed them to never buy into it because of a simple reason. All its engineering concepts are WRONG! I love this clone idea. AWESOME! I love the fact that rotax are now challenged. I hope the Chinese succeed 😅😅😅

[@cbbbbbbbbbbbb]

Was this video reuploaded? I feel like I saw this a couple weeks ago and then it disappeared. Maybe a patreon thing? Either way, this looks like a decent option along with the other cheaper experimental engines. I would be inclined to buy one of these vs build / buy a VW. I have worked with and on Rotax's so it's mainly familiarity.

[@kevinbarry71]

Cheap Chinese airplane engines; what could possibly go wrong? FYI, 35°C is 95°F

[@TyrannicG]

*me sitting in 117 in PHX*

[@robcul471]

are you related to jim walstrom live in denver

[@SkyJeep701]

Also curious about his needing to do “seasonal adjustments” to his carburetors. The Bing 64 on a Rotax 912 requires no such adjustment and compensates automatically e.g. “leans” the fuel mixture in response to changes in pressure altitude. Would like to learn more about what he is experiencing and what adjustments he makes.

[@OtterFlys]

He said, it’s the temperature, not the pressure altitude.

[@SkyJeep701]

Yes as the temperature changes so does air density. This means so does atmospheric pressure. This is why traditional aviation carburetors should be leaned by the pilot prior to takeoff at high altitude airports or on hot days even at sea level. Both hot and high is a potentially hazardous combination for aircraft performance. But Bing 64 carbs compensate for this automatically within their design constraints. I still would like to know what symptoms he’s experiencing and what he is doing to his carbs to seasonally compensate. The Bing 64 has no requirement for the operator to adjust anything based upon temperature changes.

[@russellesimonetta9071]

Uhh, dad used to say,,, oil?? It comes from the factory with oil! You don,t need to check it!

[@jasonknight149]

“No red flags”…. Well there is one. :)

[@jhaedtler]

Most Diesel engine shops can do oil analysis.

[@280zjammer]

When I weigh the risks, it's always some sort of compromise. Engines are measured by weight, power, efficiency, reliability and cost. There is no engine that is the best in all categories. If you find an engine that is the most reliable, efficient, powerful and lightweight, it's also going to be the most expensive. If you can get an engine that is equally reliable, powerful, efficient and lightweight but it's more expensive, it's very difficult not to choose that engine.

[@oneninerniner3427]

Hmmm, i think you gotta bend your pitot tube a little.

[@SkyJeep701]

There are several good aviation safety reasons a Rotax is expensive. They include world class configuration management, supply chain management, detailed technical documentation, detailed owner and service manuals, instructional videos, Service Alerts and Bulletins, owner instructional videos, a global network of factory trained service centers and technicians, with customer technical support provided to owners. I receive Service Alerts directly from Rotax if a problem is discovered by them with any part on my Rotax engine, including how to determine if my engine is affected, how inspect the part, and what to do if my part needs replaced because of the problem. All of this costs money and that cost is reflected in the cost of the engine. Does this clone engine manufacturer provide anything similar for a third of the price of a Rotax? Me thinks he has bought an engine, and not much more than that.

[@grantacoatneysr9657]

PRICE ?? $$$$$??????

[@muzimbamabaka5412]

Someone please enlighten me. So, how does this company manage to continue operating despite publicly saying their engine is a copy of the Rotax 912. Aren't they afraid of being sued at the very least or being barred from marketing their engine?

[@David-if2jz]

They are communist they dont care, there is no rue of law in china.

[@ibiufos]

It's obvious that he hasn't had any Chinese knock off motors before. I don't mind them on a mower or log splitter but not on something that you need to make sure is reliable and is not going to let you down by falling out of the sky. I've had alot of experience with the knock off engines but not a plane rotax engine knock off. I couldn't trust 1 to go flying with. Hopefully China has finally made a good knock off for his sake.

[@flexairz]

Even with a Rotax you do not fiddle the carbs when OAT changes... what rubbish is that, I never had to adjust the carbs with my 30+ years with any 4 stroke Rotax all seasons. Oil level should be at the top, not in the middle.

[@sledawgpilot]

Good info. Yeah I was wondering if that was a thing with Rotax. Didn’t imagine it was

[@P51]

Let's not interchange "angle of attack" with "deck angle" please

[@flexairz]

Well, he did not.

[@P51]

@@flexairz only five times or so

[@edwinkania5286]

Zero airspeed on climbout not a ride I want to take. I like Matt but Im not ok with that.

[@krisn8820]

It's going to be the rotec engine quality or less. No thanks. I'll put a viking/honda engine in for the same money.

[@whoanelly737-8]

I dunno…I’m not bothered by the competition, but just taking Rotax’s IP and making a copy is just wrong. I wouldn’t buy or fly one because it’s seems to be theft to me if it was not properly licensed by Rotax. It’s a slippery slope and I’ll pass.

[@nickr5658]

The patents were only good for 20 years. They are good at copying. But on an engine there’s a whole lot you need to get right in the metallurgy, castings, coatings, heat treat, etc.

[@jamesonpace726]

Calm down haters, it sure worked for Japan, why not China? See the warranty on this engine for more....

[@oneninerniner3427]

What, Japan hasn't cloned any engines? theirs are better! 😅

[@grannyblinda]

China isn’t Japan …even on a good day

[@flexairz]

Japan ain't China. Japan improves designs, China just copies with crap metallurgy for max profits.

[@fifi23o5]

​@@oneninerniner3427All their engines started as copies. From aeronautical, to car and bike engines. Later they started their own developement.

[@cmtetaboaco]

AOA and pitch are different things, this airspeed thing should not be happening

[@keepingitreal412]

All for making aviation affordable. However, not willing to bet my life on a cheap knock off. Too much risk for too little reward.

[@sledawgpilot]

Using RTV as a sealant is a no-no for engine builders. It disintegrates into nasty boogers in hot oil and can block oil passages. That alone would stop me from buying one.

[@nickr5658]

I would question the quality of the original. Lots of Chinese parts. So many problems with the 912. Totally hear you with the knock off. But rotax is WAY overpriced for what it is. They need competition… wish continental would make something similar… not thrilled with rotax

[@oneninerniner3427]

That's because everybody uses waaay too much! All that excess material that squeezes out is just waste! A 3/16" bead is way plenty! RTV Silicone gasket maker is for making gaskets. Don't put it on gaskets, except for maybe on corners where seams meet. I like Permatex Ultra Silicone Gasket Maker because unlike regular RTV Gasket Makers, Ultra is sensor friendly and not corrosive to aluminium parts. I use mostly ultra grey high vibration resistant, works well. No leaks. Three Bond 1105 I believe it is, is also an excellent case half seam sealer. @@sledawgpilot

[@oneninerniner3427]

​@@nickr5658 Chinese Continental? 😂😮😢

[@oneninerniner3427]

@@sledawgpilot most peoples use waaay too much RTV is the main problem. A 3/16" bead or less is plenty much. However many manufacturers quite extensively use semi liquid hardening gasket makers for almost everything except head gaskets and a few certain other applications where it just wouldn't work. It actually works quite well otherwise with much less seepage issues as compared to regular gaskets.

[@STOLrover]

Not no but hell no

[@kenfawcett4006]

I love Stihl chainsaws. Take a look at a handy 16" MS170 for $199. Then look at the identical saw on the shelf for $649. What gives? Well the $199 Stihl says "Made in the USA" and the other says "Made in Germany." OK geniuses here's a question: Is American labor that much cheaper than German labor? No. When you see "Made in the USA" it only means that a certain percentage of the PARTS were ASSEMBLED in the USA. Most of the parts for the $199, made in the USA Stihl are made in China. Same with Kohler engines, Branson Tractors and many other trusted brands that not even I have the resources to research and reveal.

[@chaosensues1656]

Branson tractors are South Korean.

[@perrycorn2789]

There are some Chinese products out there that maybe clones but are better and cheaper than the other brands and some are like small things like trucks EV ones and tractors that are very cheap for hobby farms they do. a great job for years and people won't spent a lot of money when the Chinese ones will do the job also the American or European or Australian product are so expensive now people won't buy it