RE: MOKI RADIAL Care and Maintenence
: mitchrep Detlef, That would be great. It looks like Rainbow-tronic is having some difficulty in getting
Posted on: 9/12/2012 10:39 AM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11226253

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: mitchrep Detlef, Did you ever receive the new ignition for your Moki 180? If you have how does it perform? I just purchased a 180 from Goetz Vogelsang, and he is trying to get them from the company. He said they are very slow with their paperwork handling. I assume they will be the same as for the 150? Thanks, Pete Mitchum [/quote] Pete, not yet. There is ONE customer, a friend
Posted on: 9/12/2012 3:32 AM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11225871

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: jetpropdlx [quote]ORIGINAL: jetpropdlx Sent a e-mail to airworld this morning but had no reaction (maybe they are closed on monday) maybe try to call them tomorrow. ps is the ignition from a 250 the same as the 215 ?? [/quote] I called Airworld this morning , a loaner/exchange ignitionbox is on its way to Belgium Should be just in time for the last and one of the biggest Meeting here in Belgium. SUPER Service!!![:D] [/quote] Eric, glad to hear that. BTW Not a bad telephone diagnosis -:)
Posted on: 9/6/2012 11:00 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11220361

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: jetpropdlx thats correct, in mine as well, thats why i use the 5V regulator (4cells fully charged is more then 5V) [/quote] Eric, you asked for my statement. Really not easy "on the phone". But it might well be a bad ignition. We had 2 failures here ( one with my own 180, one with a 215) where the black box was the bad boy. constantly misfiring and cut of in flight, but starting was normal. Replaced it ( fast guarantee exchange from Airworld) and the problem was gone. Perhaps you cann borrow one from a friend?? Attention: I assume you checked your electronic switch, not all of them work well with the moki ignition (!!) ??
Posted on: 9/3/2012 12:50 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11215915

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: JariV Does the S 180 have the same outer diameter as the S150, 255mm? Yes its has [/quote]
Posted on: 8/9/2012 12:54 AM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11186590

RE: MOKI RADIAL Care and Maintenence
The new ignition for my 4-cylinder is here. Basically the same layout as you will have it for the radials; one box with the "intelligence", one with the coils; a modular system. It will take some more weeks before my engine is ready enough to test it, but I will report if there is some interest. In 3 weeks the ignition for my 180 should be ready.
Posted on: 7/24/2012 11:03 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11168234

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: mogman As this new ignition looks to be a "stand alone" unit, and assuming the hall/ignition sensors are all the same (physical) size?? ( I don't know this for sure), other than maybe the actual length of the plug wires, this should fit all the Mokis. I am, of course, making a broad assumption here. My 400 does suffer from the #3 drop out. Cheers, Dave. [/quote] Dave, although the sensors etc are physically interchangeable, the software is NOT. The timing and advance curve between the 150 and 215 / 250 is quite different, a use of the "blackbox" (that contains the software) on the wrong enginge can lead to totally destroyed engine. I would never recommend to use it on another engine unless extensive test bench verfication is being made.
Posted on: 7/11/2012 10:40 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11152168

RE: MOKI RADIAL Care and Maintenence
Guys, I dont know the final price yet, I only know that it will be (of course) more expensive than simpler ignitions for opposite twins or so, as the series is much smaller, but the technique is much more elaborate and complex. Its really high-end and state-of-the-art. And I dont know if there will be a type for the 400 Moki. The 400 is quite rare on the market, and thus demand for such a type is rather small. The work to match the ignition with one engine takes maybe some days, so I am not sure they will do that for one or two ignitions to be sold. I guess it will take only a few days until you can get information about that from Goetz Vogelsang.
Posted on: 7/9/2012 10:13 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11149570

RE: MOKI RADIAL Care and Maintenence
Bill, to make it clear; I do NOT make them; I was only involved in the history that led to that product. I was tired of the problems that fill complete forum threads and asked the guys who make the ignition for my Phoenix-engine if they could use their (highly adaptive) concept also for radials. They thought about it and did say yes... and what was left to do was to find out how to adapt the build-in sensor ring with the magnetos on it, and fine tune the ignition ( timing & advance curve) with the radials. This took some weeks, and the result is really first class. The 215 is here and runs really as fine as can be. So it is not wrong to say the the Phoenix-ignition is the father of what we will be able to purchase soon :-) The ignition for the 215 / 250 where made shortly before the 150- ignition was developed on the test bench. Both types will bee available soon. Distributor in the US is supposed to be Vogelsang.
Posted on: 7/9/2012 4:27 AM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11148409

RE: MOKI RADIAL Care and Maintenence
Guys, sorry for keeping you waiting for an answer. The new Ignition will replace the original ignition in all parts, 100%. This means to replace the black box AND the ignition coils and the sensor at the front of the engines gear housing. It will be NOT necessary to open the gearcase, as the timing ring with the magnetos will remain as it is. It will be necessary to open the engines backplate (very easy, no difficult work) and take out the coil assy. The space will be used no longer, the engine "empty". You will have an ignition box and a box with the coils; both to be mounted beside the engine. Test results on the 150 engine are extremely good. The engine equipped with turbulator, APS-Pump and new ignition will perform second to none, gaining 300 rpms and have an excellent running behaviour. Missing cylinders did never occur again during the test. Starting is as easy as you see it in the little movie.
Posted on: 7/9/2012 1:09 AM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11148348

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: MANFRED Any word on the new ignition? [/quote] The new igniton is here in my hands; I have a prototype version installed on a Moki 215. it is running as fine as can be, but the company that makes the ignition is still working on some development for serial production. I guess it wont´t take long until it is officially available on the market. BTW it is the same company that has developped the ignition for my V-4 engine, so we are in very good hands with that
Posted on: 6/25/2012 10:22 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11132005

RE: MOKI RADIAL Care and Maintenence
Ron, I fly APS-Pumps on all of my radials, its a safer (and sufficient) fuel supply in my eyes and drops one weak point of the engine. Any gear box should be vented, because condesates and moisture cannot escape if you close it completely. Rust will follow soon. Although I fly that extra thick flowing grease-like oil, I never saw it coming out of the venting hole more than normal. (a little grease / oil is normal after one or two hours.) In the P-47 engine the piston and rod are removed, also in the moki 180 of the hellcat.
Posted on: 6/19/2012 10:34 AM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11123915

RE: MOKI RADIAL Care and Maintenence
I am using a very thick oil, something between grease and oil, in my radials, from the time on when I first disassembled one. All the original grease was exactly where some mechanic had put it, it never came to melting or greasing parts. Guess how the engine looked inside..dry.
Posted on: 6/18/2012 9:04 AM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11122375

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: TJPro351 Jake, If you have the same "squeaking" sound as I did, the rocker arms are the cause. Although I heard the squeaking sound only when I rotated the prop my hand (several revolutions), yours may be more severe. I lubricated the rocker arms with Tri Flow (Ace Hardware and recommended by Goetz) and the squeaking sounds go away. Goetz stated that before each run, lube the rocker arms. Hope this helps, Tim [/quote] @ all: if you hear some squeaking sound by turning the engine by hand, check carefully that you dont have dry running tappets on your cam drum. I ve had that with customer engines more than just once (!!)
Posted on: 6/15/2012 5:33 AM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11118949

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: Jaketab Hello Detlef, Thanks again many times for your responses. Just to make certain all are on the same page regarding valve adjustment, my instructions call for an adjustment range of .005 to .008 thousands - English Standard. If I convert to metric the range is .127 mm to .2032 mm. [u]Is this correct?????[/u] Thank you - Jaketab [/quote] No, not correct. The values
Posted on: 5/16/2012 2:24 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11083409

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: stivvy Brilliant I will give it a go [:D] [/quote] Dont worry, I did the same with mine. Its quite easy :-)
Posted on: 5/16/2012 2:22 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11083405

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: kipuetz Dear Detlef, your answer to jaketabs question lets me rest a little easier now,I have had the same concern re. my 150. With regard to to manufacturers valve lash settings of "0.05-0.08mm, [5-8 thou], I am a little confused. To me the latter is" roughly" double in value then the former! The dealer I purchased the engine from has not answered my question re
Posted on: 5/16/2012 3:32 AM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11082667

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: Jaketab Hello - help with engine tuning please. Getting ready to maiden a Gee Bee R3 with Moki 250 this weekend. Had the plane out in the yard today doing final adjustment to engine with the cowl removed. Discovered that the #5 cylinder is consistently running about 20 to 35 F hotter than 1-2-3-4. Measured again immediately upon shutdown. Cylinders 1-2-3-4 are 200F range. The #5 is at 239F. I would like to bring the temp of #5 down to match the temps of the others. The only 2 adjustment variables I know would be valve lash adjustment and plug gap. Help please – would increasing or decreasing the valve gap produce the results I seeking???? The valve gap is currently at .006. If I increased the intake lash - would this lower the temp on the theory of letting less fuel into the #5 cylinder???????? Any ideas please, Thanks - Jaketab [/quote] Jaketab, I would say that a difference in the range that you measured is OK and doesnt cause a problem. Depending on your cooling situaion, and mixture-differencies between the 5 cylinders, values like yours temps seem pretty Ok. I would NOT recommend to try and manipulate temperatures by mis-adjusting valve clearencees!!! The danger of severely ruining your engine is much too high. That is NOT the way to solve temp problems! Valve gap is to adjust within manufacturers specs, not more, not less.
Posted on: 5/15/2012 3:05 AM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11081191

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: Pelle Gris Thanks for the clarification Mick. I thought that there must have been a good reason for not using both system at the same time, and an elevated fuel pressure, with both systems operational, would indeed leave you in the same mess if one of the systems failed. Too bad though. I have talked to two friends flying the Moki 250, both using the APS 380 fuel pump, and both agree that the engine runs more reliable, and with much crisper throttle response with the pump. So I will most likely follow suit and use both fuel pump and turbulator. One more thing. I know the websites of the companies selling both the engine and the fuel pump, but have been unable to find anyone selling the turbulator, other than Vogelsang in the US. But being located just north of Germany I would rather like to avoid having to order the part in the US, and having it shipped back to europe. My modest contribution in the fight against global warming...:-) Do any of you have a lead on where to buy it? If I buy the Moki it will be going into a 1:3 Scale PZL Wilga I have been working on for some time. It was originally destined to recieve a King 140 twin, but (luckely) it developed some problems, and I thought the best cure for the following depression, would be to buy a nice shiny new toy. :-) [/quote] Pelle Gris, I agree with Mick concerning the double pump use. Don´t do that. If you ever had the chance to compare a 215/250 with pump and turbulator to an engine out of the box, you will see a noticeable difference. How smooth the running characteristics are, how easy to adjust both needles as they show a precise clean peak position- it couldnt be easier . I have also the new Moki 180 here and will be going to run that in my Ziroli Hellcat. Concerning the running behaviour- its just the same. Yes it runs out of the box- but thats all. Compared to the tuned version now, you would´t want to go back to the "out-of-the- box-" status. Its a pleasure NOW. The chance to have a failure it the electric pump is nothing compared to the permanent problems with the built-in pump. It doesnt produce enough fuel pressure, and is very sensitive to pollution with grease in the tube line. The engine gets hardly enough fuel, and the main needle is NOT the regulating factor- its the pump performance. And thats not the way Walbro designed their carbs. Try to make it run TOO RICH - you cannot, as the pump does not deliver enough. It will drop a hundred rpms- thats all.
Posted on: 4/7/2012 11:47 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=11032626

RE: MOKI RADIAL Care and Maintenence
Tom, there should be a manual of several pages coming along with the turbulator. The bigger opening is facing to the rear . Remove everything from your engine but the sealing. Then the turbulator, a sealing, the black 10 mm spacer, a sealing, and then the carb. The lenght is designed to have your needles better in the airframe instead of exactly in the bulkhead (firewall). There was no other way. Normally, you have a much better access to your carb, levers etc. compared with the situation in the engine mount. The improved running behaviour of the engine makes it worthwile to shoulder this little extra work. The longer tubing is for guys without an e-pump. Ask Vogelsang for the manual; there is also one translation here in this forum by Maxxam.
Posted on: 12/12/2011 10:16 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10856875

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: DENTO Wonder how long it will take DETLEF to add an extenstion to his turbulator to go down into the intake tube,You guys are certainly putting some time and effort into this,WELL DONE . REGARDS JOHN [/quote] John, thank you. Whatever you do to the little Mokis, the intake is the key. I am happy how both of my small radials behave now, loosing a cylinder or have very different
Posted on: 12/6/2011 11:48 AM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10846330

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: mirce Detlef, who made V-4 engine and in what model you will use it? Regards Mirce [/quote] Mirce, that is my own engine project of the last 2 years. Back to radial: I spent again one complete saturday on my 180 and the new 150 that came friday. This is what both engines run like, after spending alltogether 4 days (!!) on the test bench, machining parts, making different
Posted on: 12/5/2011 12:06 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10844500

RE: MOKI RADIAL Care and Maintenence
Lying together on my work bench, I could not resist to compare two totally different engines: my new V4 with the 150 radial. Which one is bigger?
Posted on: 12/2/2011 3:42 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10840363

RE: MOKI RADIAL Care and Maintenence
Bill, you asked about the Numbers on the 150 / 180 carbs. Received a brand new 2011 build Moki 150 today, and also took off the carb from the 180. Both are the same as I thought they are. It says WT 042 - 225B BTW I did trials with a smaller carb on the 150 2 years ago, with bad success. Maybe I choose a carb thats not suiting the Moki at all, but the engine run was so poor I dropped the tests very soon. If you have a too big carb, the engine does not perform better from half throttle to full- which is NOT the case with the Moki 150 ( although I had the same idea compared with the 250, that the carb is too big for the 150! But I could not prove it.) So with the 150 as a spare part depot ( oh god how does that sound) I can continue complete testing on the 180. That was in fact the main reason to purchase the engine from a chap I know; he wanted to give it away, the price was Ok, and I thought last chance to finish my tests before the first snow. Hopefully I am a bit cleverer tomorrow ...
Posted on: 12/2/2011 3:31 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10840345

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: BIGDAMMODELS Thanks Mr Kunkel for the info and run video of the friends radial...what a sweet running jewel...such talent and skill your friend has....I agree with your ideas on the fix for the engine...Quote..."There MUST be something different, thats obvious".....you can even go to Troy built's site and watch the 150 video...it drops the cylinder
Posted on: 11/25/2011 3:13 AM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10826621

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: Maxam Detlef, Great to see your post as always. Sorry to hear about your troubles. Wishing you to solve the problems. Are the seven cylinder versions working yet? I see great value in using test stands and build very nice ones but I think your test stand wins! Nice extruded aluminum work. I might be coming to Germany this next summer. -Tom Maxam [/quote] Tom, give me a note
Posted on: 11/23/2011 4:06 AM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10825146

RE: MOKI RADIAL Care and Maintenence
Btw there is an alternative to a Moki 150 / 180. This here is build by a friend of mine, a 135cc 3-Cyl radial with a fantastic very scale sound, and a performance easily matching the moki 150. Just a bit bigger in diameter, but Armin is working on that. His aim is to get the engine exactly to the diameter of the moki. Then I will get me one, for sure. Look at this; no problem with uneven mixture or something like that: http://www.modellmotoren.eu/3Zylinder%20Stern.html
Posted on: 11/21/2011 11:19 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10823361

RE: MOKI RADIAL Care and Maintenence
[quote]ORIGINAL: BIGDAMMODELS Next Week?...lol....hopefully ours will arrive soon...I agree that the ignition is a little under-rated for the richer mix issues at hand...especially that 7 o'clock jug...maybe just replace that part of the coil-pack...not have it be an integrated part of the block...it would get a lot less heat mounted elsewhere....but yea...hotter should make for a better run....we trial fit the turbulator here yesterday into the intake plenum going to the head for a few ideas we have here...another improvement would be to "Y" the #3 intake to the next highest intake plenum where it exits the crankcase...and get it higher up...the fit was nice with it being inside the pipe ...I'll get up a couple pictures...and yea...that new Seidel coming is none to soon for comparison...I need a 150 cc sized gasser for a old but good girl....was hoping Moki...but getting sweaty palms...Bill [/quote] Bill, I was also thinking of an interconnection between the inlet headers. But an even better idea would be, if all 5 did suck from a common tube out of the crankcase, and then spread (in a way that no tube is preferred or have worse or better conditions than the others) This would be a big modification to the engine, surely with some success, but a lot of parts and work.. My modification is trying to solve this all inside the crankcase. Much easier. If it only works...
Posted on: 11/21/2011 11:00 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10823343

RE: MOKI RADIAL Care and Maintenence
Bill, thats the way I see the problem, too. I mount the carb so that tha spray is directed upwards. Together with the new modification, the problem might be a thing of he past soon. (If we are lucky enough). Then, a new ignition with much more energy is next on my list. The rather weak moki ignition doesnt help when the mixture is not 100% perfect ( and it often is NOT) Trial on an old Seidel 125cc 5- Cylinder proved very promising. Totally different engine. A shame that the factory doesnt care, or at least it seems so. - Next week I will have my new ignition from Airworld, then testing can go on; hopefully done before the first snow arrives here...
Posted on: 11/21/2011 1:05 PM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10822622

RE: MOKI RADIAL Care and Maintenence
Hi Bill & the others here, spent my saturday again on testing a new modification on the new Moki 180. Remember, first it did run on 5 cylinders at full throttle, but NEVER between 3000 and 4000 rpm. After 2 hours, the malfunction of #3 increased to a point when it did not fire anymore. (Although there is a visible spark at the plug when taking it out!). But it seems to be too weak to light the mixture under compression pressure. Yesterdy, it did run again on 4 cylinders only, no matter what I did ( and I did a lot). Turning the carb, turbulator or not, Denso or new NGK-Plug, different turbulators- nothing. You can hold the exhaust pipe of #3 between your fingers while operating the engine across the complete rpm-range. Replacing spark plug and the black ignition box did not change the stituation. This ensures me that I have a bad ignition coil on #3 ( must be just THAT cylinder again, of course). Maybe a bad connector to the black box, I dont know. I checked all the wiring to the coils, no visible error. So, sad for me, testing the new modification was not possible, I have to wait for a new coil from Airworld. So all the testing was not worth anything, because this electrical problem occurred. As soon as the ignition is repaired, I will have to start all over again. At the moment, I am really not too pleased...will report when I continue.
Posted on: 11/20/2011 4:56 AM by Author "Detlef Kunkel" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10820469