MOKI RADIAL Care and Maintenence
#3201
Join Date: Dec 2011
Location: burlingtonontario, CANADA
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Questions-
1- Is there a factory website in Hungary for Moki and if so what is it.
2- Factory parts supplier.
3- Can someone (in a nut shell, I have heard the long version and don't completely get it) explain the history of the company and
who is building the "real ones".
Peter.
1- Is there a factory website in Hungary for Moki and if so what is it.
2- Factory parts supplier.
3- Can someone (in a nut shell, I have heard the long version and don't completely get it) explain the history of the company and
who is building the "real ones".
Peter.
#3202
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Join Date: Feb 2007
Location: Gray,
LA
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Just purchased a balsa usa 1/3 scale Stearman with a 215 Moki, haven't run it yet and have been looking for a parts or maintenance manual, does such a thing exist, downloaded the manual on the engine, but it doesn't give much info
oldrcguy
oldrcguy
#3204
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Join Date: Aug 2004
Location: Baton Rouge, LA
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Guys I'm needing some help installing my moki 250, so I have gotten the turbulators and the pump but I don't understand how everything is supposed to be wired up.
On the turbulator the install seems straight forward except for the fact that it comes with a Black tube that I don't know where its supposed to go, does anyone have pics of the turbulator installed on there 250?
finally how is this pump supposed to be wired up, does it need its own channel? power supply?
On the turbulator the install seems straight forward except for the fact that it comes with a Black tube that I don't know where its supposed to go, does anyone have pics of the turbulator installed on there 250?
finally how is this pump supposed to be wired up, does it need its own channel? power supply?
#3205
I run my pump on a separate battery and switch... a manual switch. You could put it on a transmitter channel also, but my assumption for my plane was that if the manual switch was on, I also want the transmitter switch to be on. Keeping it on a manual switch only also eliminates the possibility of accidentally killing the fuel pump while in flight. There's an overflow valve on the pump, so any excess fuel is pumped back into the tank, not the carb!
I do use a dedicated battery for the pump.
Not sure about the turbulator.
I do use a dedicated battery for the pump.
Not sure about the turbulator.
#3207
I run mine on the same battery at the ignition thru a SmartFly OptiKill Switch. So the channel that controls the ignition also controls the fuel pump. Ignition on, fuel pump is on. Ignition off, fuel pump is off. Works well for me.
My .02$
My .02$
#3208
I run my pump and ignition via a Powerbox Sparkswitch. This regulates the voltage from the 6,6V A123 pack down to 5,5V,as more may hurt the ignition, and controls the ignition/pump via a switch on the TX.
As mentioned above, if you happen to run out of fuel it´s vital to be able to shut down the pump immediately, as letting it run dry may destroy it in no time.
I´m considering installing a safety switch on my TX to operate the Sparkswitch. Then there is no chance of accidentally killing it in the air. I already use such switches for choke and retracts.
I´ll snap a picture of the setup on my test stand tomorrow.
As mentioned above, if you happen to run out of fuel it´s vital to be able to shut down the pump immediately, as letting it run dry may destroy it in no time.
I´m considering installing a safety switch on my TX to operate the Sparkswitch. Then there is no chance of accidentally killing it in the air. I already use such switches for choke and retracts.
I´ll snap a picture of the setup on my test stand tomorrow.
#3209
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Join Date: Aug 2004
Location: Baton Rouge, LA
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ok so I found the manual on the pump so that explains, but 1 thing is crazy on the diagram for the carb they actually show a pic of a muffler?
ANYWAY, so if you are using the pump do you need to disconnect the clear festo tube on the engine? will it matter if it gets filled with grease?
Lastly, any information on the black 3mm tube that comes with the turbulator, how do i install it?
ANYWAY, so if you are using the pump do you need to disconnect the clear festo tube on the engine? will it matter if it gets filled with grease?
Lastly, any information on the black 3mm tube that comes with the turbulator, how do i install it?
#3210
My Feedback: (6)
DiscoWings,
(ANYWAY, so if you are using the pump do you need to disconnect the clear festo tube on the engine? will it matter if it gets filled with grease?)
Yes you do have to disconnect the tube from the engine. I just installed a pump and all i did was remove the tube from the Festo fitting at the engine. I left the tube connected to the pump to keep it looking stock.
(ANYWAY, so if you are using the pump do you need to disconnect the clear festo tube on the engine? will it matter if it gets filled with grease?)
Yes you do have to disconnect the tube from the engine. I just installed a pump and all i did was remove the tube from the Festo fitting at the engine. I left the tube connected to the pump to keep it looking stock.
Last edited by Greg Wright; 02-03-2015 at 02:49 PM.
#3211
ANYWAY, so if you are using the pump do you need to disconnect the clear festo tube on the engine? will it matter if it gets filled with grease?
Yes you do have to disconnect the tube from the engine. I just installed a pump and all i did was remove the tube from the Festo fitting at the engine. I left the tube connected to the pump to keep it looking stock.
Yes you do have to disconnect the tube from the engine. I just installed a pump and all i did was remove the tube from the Festo fitting at the engine. I left the tube connected to the pump to keep it looking stock.
#3214
Join Date: Jul 2006
Location: Nćrbř, NORWAY
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Geir
#3216
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Join Date: Feb 2015
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Hi, I am new here, and have read lots of articles, and found them very helpful. Thank you all experts.
The thing is I found there are lots of grease coming out from the base of the pulse pump after I started to break-in the 180s. Then the engine won't be able to reach the high speed, it will become slow unless I move the throttle stick back. With couple of mid-speed, I will get he high-end back. But gradually the engine became very hard to start, and easily have carb flooded when chocked. I am using oil mix 30:1, and Gotz told me I should change to 50:1 immediately, and he suggested me to use electric pump.
My question here is: does the grease coming out means my engine leak at the base of fuel pump. It looks like coming out from the base not the vent hole on the pump. If I change the oil mix to 50:1, will all these issues resolved? I did have one engine shutdown at the third flight when the fuel is low. Thank you very much all experts here. I will definitely go to get an electric pump...
The thing is I found there are lots of grease coming out from the base of the pulse pump after I started to break-in the 180s. Then the engine won't be able to reach the high speed, it will become slow unless I move the throttle stick back. With couple of mid-speed, I will get he high-end back. But gradually the engine became very hard to start, and easily have carb flooded when chocked. I am using oil mix 30:1, and Gotz told me I should change to 50:1 immediately, and he suggested me to use electric pump.
My question here is: does the grease coming out means my engine leak at the base of fuel pump. It looks like coming out from the base not the vent hole on the pump. If I change the oil mix to 50:1, will all these issues resolved? I did have one engine shutdown at the third flight when the fuel is low. Thank you very much all experts here. I will definitely go to get an electric pump...
#3217
The grease should be coming out of a small hole at the base of the pulse pump. It can also come out of the festo connector on the pulse pump and clog the tube that connects the pulse pump to the carb. The electric fuel pump will take the place of the pulse pump and the fuel pumping portion of the carb. This eliminates the possibility of a clogged tube causing your engine to quit in the air. The electric fuel pump also improves the choking and starting characteristics of the engine too. The fuel/oil ratio will not change the amount of grease coming out of the pulse pump, but it will improve the performance of the engine and most likely reduce carbon buildup and plug fouling.
KennyMac
KennyMac
#3218
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Join Date: Feb 2015
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Hi KennyMac,
Really appreciate your help. Originally I thought it was leakage of engine shell. Will go to get electronic pump.
SA
Really appreciate your help. Originally I thought it was leakage of engine shell. Will go to get electronic pump.
SA
The grease should be coming out of a small hole at the base of the pulse pump. It can also come out of the festo connector on the pulse pump and clog the tube that connects the pulse pump to the carb. The electric fuel pump will take the place of the pulse pump and the fuel pumping portion of the carb. This eliminates the possibility of a clogged tube causing your engine to quit in the air. The electric fuel pump also improves the choking and starting characteristics of the engine too. The fuel/oil ratio will not change the amount of grease coming out of the pulse pump, but it will improve the performance of the engine and most likely reduce carbon buildup and plug fouling.
KennyMac
KennyMac
#3219
My Feedback: (62)
Poor Moki thread...too quiet around here. I would like to make an observation here with the newer large exhaust nuts. They are a great improvement over the older ones. As we all know the older ones kept unscrewing or the teflon seals would soften and thus the nuts would get loose. People would use the red high temp sealer or safety wiring. The new nuts seem to need one tightening after the first run and thats it. How do I know?? You can take a sharpie and mark the nut moving down to the collector ring so the mark on both the ring and nut indicate the position of the nut relative to the ring. After even many runs, the sharpie mark is still visible! Non of the nuts on both my mokis unscrewed! YAY! -Tom
#3222
My Feedback: (62)
Whit, I just do not know. Maybe Gotz at Vogelsangaeroscale knows. I am guessing the ring would need replacing too. I no longer own any older engines so I cannot compare.
Waco Dream, Looking forward to hearing your experiences with the seven cylinder. I have inquired before if anyone had one. Did not get a response so maybe you are the first to get and run one.
Waco Dream, Looking forward to hearing your experiences with the seven cylinder. I have inquired before if anyone had one. Did not get a response so maybe you are the first to get and run one.
#3223
Maxam... Interesting post on the exhaust nuts, I have a new 300 and have only bench tested several times and each time I've had to tighten them. Being a newer engine, I would think they'd have the new nuts. What engine do you have?
#3224
I have been following this great thread for a few months now. My carf p47 thunderbolt with the moki 250 is almost ready to go. I have run up the engine on a test bench with a SEP 32x18 props and it runs like a swiss clock. Just purchased a carf 4 bladed props as well….I have installed an emcotec power Fuel RX fuel pump and I am wondering if a turbolator should also be a part of my setup? While I have made notes about post run care for this engine, is there a part on this thread which summarizes the learnings with ABSOLUTE dos and donts? I cannot possible go through this entire thread…way too long... I am atleast one month away from a test flight.
Thanks in advance.
PS: Any advice on which temperature measurement device is ideal for a moki?
Thanks in advance.
PS: Any advice on which temperature measurement device is ideal for a moki?
#3225
Does anyone have a plumbing diagram to install an emcotec power fuel rx pump with a moki 250? Since its a variable voltage pump, what is the recommended setting to run it? The instructions say between 30% to 60% depending on engine size.
thanks
thanks