ram3500-RCU

My Feedback: (221)

Thank you for this post. Yes, We who own these engines will certainly benefit from what Gotz has accomplished. I would like to add that Julian, the gentleman now doing the service on the Moki engines for Gotz is wonderful to deal with. His communication is outstanding, with regular updates from the time he receives your engine till he ships it back. He also sends you a video of your repaired engine, running on his test stand. If you need to resort to sending an engine in, you can do it with confidence.

IFLYBVM2

My Feedback: (360)

Contact info for Julian ?

jbaldwin

JM Engineworks
Julian Mashburn
10873 NC 902
Bear Creek, NC 27207

919-200-9520


JIm

affas

Anyplace where I can find max rpm on the 5 cyl Moki 180?

I know that they suggest max 26" three bladed but my two Moki 250 don't like to much rpm and I do use 32x22 two bladed and 32x18 fourbladed with ground rpm between 4000 and 4400 so thought the 180 could handle maybe up to 28" three bladed?

GeorgiaFlyer

I dont know that it is published anywhere that I have seen, but I like to keep my Moki 180 below 4800. I rarely ever flew it at full throttle. Would managed the throttle in the air on downwinds and prop unloads to keep the RPMs down. These motors are not made for high RPMs. I used a 26x18 two blade and got about 3800 on ground. This is for a 48lbs plane. Not sure the 180 would handle a 28" three blade. Maybe for a lighter plane. That size prop but would put a load on the motor and not get as much thrust at the lower RPM needed for a heavier plane.

marksp

My Feedback: (9)

Here are 2,3 & 4 blade options for the S180 -

http://www.heilemann-sternmotoren.de...moki-s180-info

http://www.heilemann-sternmotoren.de/en/shop/propeller-sep-moki/3-blade-propeller-for-moki-s180-info

http://www.heilemann-sternmotoren.de...moki-s180-info

ReneAlv

My Feedback: (5)

Gentlemen,

I have a Solo Prop three blades 26" which I was going to use on a Moki 150cc Radial, but instead bought a Moki 180cc radial for the Meister Corsair and now I am flying it with a three blade 28".
These blades were use a couple of times and are not damage, they are like new. They are for sale with the dry transfers for $100.00 and free shipping within the USA

If you are interested email me at [email protected]

Thank you and Happy Holidays

Rene Alvarez

wingstrut

Husafreak,

Most problems were from people not used to running a radial engine, they turned them up too high because it sounded good. (puke)......they still do, some people will never learn.
The older Moki's did have a few problems which were discussed and solutions were stated, You won't find a better sounding radial, I don't care if its an evolution or what.
The Moki is like the Harley Davidson, everyone wants to sound like a Harley but never will until they build their engines exactly like a Harley same as with Moki.
Buy a newer Moki from Voglesang and a pump to go with it and like any four cycle engine just follow the maintenance schedule and you will just love that engine.
Mine starts and runs better than any Zenoah, DLE, DLA, Saito or any two stroke airplane engine out there.
I don't have to flip my prop I just place my fingers on the prop near the hub and just push it through it starts and idles perfectly, after the initial priming of course, just like any engine.......Wing

husafreak

My Feedback: (3)

High praise indeed! Thanks

Zman39

My Feedback: (6)

Moki help. I have a brand new 180 that is in a meister 47. I thought I was just about ready to maiden but noticed yesterday that one of rocker arms is broken (argh!).. Anyway I went to order a new one to replace and aeroscale is on vacation until Jan 10th.. Anywhere else I can order a rocker arm in US or overseas?? Don't feel like waiting until mid Jan to get the part..

Thanks!

Z

reyn3545

You can try AMR in Canada... They ship to the US often. Also Troy Built Models in Florida... They sell a private label, but its a Moki engine... Not sure if they sell parts or not.

Jaketab

My Feedback: (2)

http://www.heilemann-sternmotoren.de...ki-spare-parts

Greg Wright

My Feedback: (6)

Try calling Julian...

He is Vogelsang's repair service guy in NC. Maybe he can help you.
JM Engineworks
Julian Mashburn
10873 NC 902
Bear Creek, NC 27207

919-200-9520

Zman39

My Feedback: (6)

Thanks all! Lots of leads here. Will try.

Thx
Mike

Jaketab

My Feedback: (2)

Hello,

Can anyone tell me the centerline diameter of the 3 mounting holes on the Moki 250.
Mine is currently mounted and not accessible.
I need to fabricate a shim to give the motor 1 degree of up thrust.

Thanks - J Tab

Greg Wright

My Feedback: (6)

Will this help you? I just googled Moki 250 dimensions.

The Internet is a Wonderful thing!!!!!!!!!!!!!

Jaketab

My Feedback: (2)

Thanks Greg, I've got that diagram. The dimension (100mm) appears to be the outside dimension of the engine mounting ring ???
Was looking for the mounting bolt circumference.

Greg Wright

My Feedback: (6)

Jake,

If you have the wood base that the motor is shipped on could you not use that as a pattern to make a template for your shim?

LRFitch

Guys, I know this isn't much related to warbirds with round cowls, but clearly most of you know a lot about Moki radials. I have an older 215cc version, and currently intend to install it in a 41% Pitts Model 12 kit I'm working on--at a very slow pace. I'm also thinking about scratch-build-design a glider tug to be powered by the Moki 215. Is it accurate to say the 215cc radial has about the same power and weight as a 150cc boxer engine along with it's needed exhaust system? I'm thinking a simple box-style fuse about 120" long, and a wing of about 130-140" span and chord of around 14-16" for a main wing area of about 2000 square inches.I'd expect an all-up wieght at about 45-50 pounds fully loaded with 100 ounces of gasoline.

Thanks,
Larry

Maxam

My Feedback: (62)

Larry, I have a 215 in the Bruce Tharp Engineering Super Flyin' King. It has a wingspan of 138". You can go to his website for all specs. Mine is set up to glider tug with the hook. I am using a 33x16 SEP prop from Vogelsang Aeroscale. It has gobs of power and will do vertical out of sight if i let it. A DA 150 has more power but the 215 will take care of it. It and the Moki are perfect. It weighs 38 pounds. It is an excellent flier and has flaps enabling 1/4 throttle flight. I normally fly it at just above 1/2 throttle. -Tom

wingstrut

Larry, It depends on where you want your power, the twin 155 boxer engine won't turn as large a propeller as the moki at the same rpm so it's pretty obvious you won't have the same power.
That doesn't mean the boxer wouldn't fly your tug, actually it should do well on something like that.
You really can't compare HP between a twin and a five cylinder, they both may have ten HP but the multi-cylinder will have more even torque, (closer power impulses) smoother and more reliable engine runs.........in other words they produce the power more consistently through the rpm range.

The aircraft you describe, the moki should take you into low earth orbit with no problem.................wing

LRFitch

Maxam/Wingstrut,
Thanks for the responses. I'd have guessed the Super Flyin' King would be a little too small for the Moki or a 150cc twin. It is a lovely design, and all of Bruce's design's fly very well. That is a great idea for a tug. Maxam, what is a three bladed equivelent to the 33X16 SEP?

Thanks Again,
Larry Fitch

wingstrut

Larry, HOLD ON THERE!!!!!!!!......We didn't say the Moki was too much, you can never have enough power.
I don't fly my plane over half throttle actually a little less after it's airborne.
Most likely the weight of the engine could be a factor trying to balance out the plane, my Waco has a 120 inch wing but it has a pair of them, the area of the Waco's wings are close to 4000 squares, but you should check yours before you build, you could always scale it up since you are scratch building anyway, that would be a neat airplane.
I actually was tempted to build a big weekend flier, candy bomber, tug and anything else you could think of for the Moki Radial, you could have a lot of fun without worrying about bashing your ten thousand dollar scale job.
I think you would need 3000 squares or more on that wing at that weight to be a good tug, I like big wings.................wing

wphilb

My Feedback: (10)

I have a Moki 150 in a 12' wingspan Telemaster and its nothing but fun! It would make a good glider tug I suspect though that's far from my area of expertise. The plane was made as an electric so it took some uprating of the structure but it is a perfect combination and is capable of carrying another 10 lbs without much fuss, at least in candy...

Whit

wingstrut

Whit,
I forgot about the old Telemaster, that would be a great platform for anything like this, I bet it is a lot of fun also, actually I would go with the Telemaster over just about any aircraft for hauling heavy loads, ummmmm! I wonder if anyone has tried a Moki in a helicopter, I saw one in an air boat......ron