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MOKI RADIAL Care and Maintenence

Old 05-02-2019, 05:24 AM
  #4251  
GeorgiaFlyer
 
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I've tried it both ways. Works fine either way you want. Your choice.
Old 05-03-2019, 05:16 AM
  #4252  
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Right on, thanks
Old 05-03-2019, 07:19 AM
  #4253  
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Originally Posted by marksp View Post
Question regarding fuel pump setup - after installing fuel pump I removed tube from air pump to carb bladder and installed a festo cap (see picture). Question is, what to do on carb end?

Attachment 2264027
I plugged the carb hole with a short 4 mm screw. Left tube open from the air pump. Very little grease leaking from the open tube. No problems after many hour of run time.

J Tab
Old 05-12-2019, 04:00 AM
  #4254  
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What is the best way to get an exhaust extension to stay put!!
tmac48.
Old 05-14-2019, 11:12 PM
  #4255  
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Originally Posted by tmac48 View Post
What is the best way to get an exhaust extension to stay put!!
tmac48.
Made these stainless
extensions and then realized that the collector ring is Alloy! What is the rest of the Moki owners doing for extensions. I found that the clamp on flex extensions kept coming loose and they eventually just broke off!
Regards tmac48.
Old 05-15-2019, 10:08 PM
  #4256  
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Decided to use the clamps that came with the flex pipes, silver soldered to the stainless extensions, looks ok but just hope they don't come loose !
Old 05-26-2019, 02:43 PM
  #4257  
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Default S250 prop drill guide

Any sources for Moki S250 prop drill guide?

Cheers
Old 05-26-2019, 04:00 PM
  #4258  
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Originally Posted by marksp View Post
Any sources for Moki S250 prop drill guide?

Cheers
Got my Moki prop drill guide from Vogelsang Aeroscale.
BTW. Just received a new Moki 250 with the AT-6 exhaust collector ring.
In addition to the larger right side exhaust pipe, visible improvements include a larger 64 mm diameter prop hub and improved spark plug boots.

Regards - J Tab
Old 06-02-2019, 06:14 AM
  #4259  
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Hello guys,

I have read almost all pages and I found a lot of great info!
I am planning to buy a Moki 180 radial in the future to power a FiberClassic Yak-11.
We have noise restrictions of 84 dB measured from 7 meter (23 ft) from the model.
​​​​​​It is an average of 3 measurements from different angles (fwd, aft, side)
Does anyone know if it is feasible to stay below this limit with a Moki 180 and a 3-blades prop?
Thanks
Old 06-03-2019, 06:29 AM
  #4260  
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Originally Posted by Didier View Post
Hello guys,

I have read almost all pages and I found a lot of great info!
I am planning to buy a Moki 180 radial in the future to power a FiberClassic Yak-11.
We have noise restrictions of 84 dB measured from 7 meter (23 ft) from the model.
​​​​​​It is an average of 3 measurements from different angles (fwd, aft, side)
Does anyone know if it is feasible to stay below this limit with a Moki 180 and a 3-blades prop?
Thanks
I am using a SEP 26x15 3-blade on my 180. It is unbelievably quiet. While I have never tested it with a db meter, I don't think you can find a quieter combination than this. It will pull your Yak like a freight train.
Old 06-03-2019, 07:59 AM
  #4261  
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Originally Posted by RichardGee View Post
I am using a SEP 26x15 3-blade on my 180. It is unbelievably quiet. While I have never tested it with a db meter, I don't think you can find a quieter combination than this. It will pull your Yak like a freight train.
That sound great! Which airplane do you fly with your moki 180?
Old 06-03-2019, 08:46 AM
  #4262  
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Originally Posted by Didier View Post


That sound great! Which airplane do you fly with your moki 180?
I fly a CARF 2.75M SU-31
Old 06-04-2019, 12:56 AM
  #4263  
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Your Sukhoi looks awesome Richard!
I bet you have more then enough power to fly this bird.
Old 06-04-2019, 05:27 AM
  #4264  
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Talking

Originally Posted by Didier View Post
Your Sukhoi looks awesome Richard!
I bet you have more then enough power to fly this bird.
I replaced a DA120 on canisters with the Moki 180. While the DA120 did provide more sheer performance, the Moki is more than capable of pulling the SU-31 through any scale maneuver and it does so with the utmost in realism.
I also have a good smoke system. The sound and look of this plane is as close to the real thing as I have ever come.
More performance could be gained with a 2 blade prop, but I will sacrifice a little performance for the sound and look of the 3 blade.
It is a GREAT combination.
Somewhere down the road, however, I want to put this 180 in a Grumman Bearcat "Blue Angel"
Old 06-04-2019, 06:11 AM
  #4265  
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Originally Posted by RichardGee View Post
Somewhere down the road, however, I want to put this 180 in a Grumman Bearcat "Blue Angel"
Cool plane the Bearcat!
Don't want to hack the Moki thread but I just finished a VQ RareBear (Reno Bearcat) and clipped the wings.
Power is a Saito FG60R3 radial and although not a Moki, I think you can appreciate it.






Old 06-12-2019, 12:35 AM
  #4266  
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My Moki 300 damaged after only six flights!

Just after landing of the last flight it stopped suddenly. Trying to restart later it stopped after a short run with loud mechanical noise and is now blocked. The prop can not be moved anymore.
Is here anybody else with Moki 300 problems ?

Old 06-13-2019, 10:27 AM
  #4267  
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Bummer,
Last Fall, I lost my carf corsair after 8 years. Never had a gear up landing or a dead stick in that entire time. Balsa gods put an end to that!
Moki 250 not worth rebuilding so saved all the good parts.
Anyone interested in parts, email me.
thanks.
[email protected]

Couldn't get two damaged heads off so left them attached to the center mechanism.





Old 07-02-2019, 07:15 AM
  #4268  
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Hello,

Need a recommendation on spiral wrap to protect Moki plug wires.
I would prefer to leave the wires as is, but the because of the close proximity to the firewall the wire will be rubbing against it.
McMaster offers chemical resistant high temp spiral sleeving made of PTFE plastic which may be softer than the cheaper stuff.
Could someone give me a recommendation on what works best for them ??? Which size ???
https://www.mcmaster.com/spiral-bundling-wrap

Thanks - J Tab
Old 07-04-2019, 07:40 AM
  #4269  
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Default Fuel pump setup questions

1. looking for fuel tank draining tips when fuel system plumped with pump.
2. I currently have the non-programmable version which runs flat out and notice fuel dripping from carb when attempting to start. Seems too much pressure? Should I switch to programmable pump and mix w/throttle?

Cheers
Old 07-04-2019, 08:31 AM
  #4270  
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Originally Posted by marksp View Post
1. looking for fuel tank draining tips when fuel system plumped with pump.
2. I currently have the non-programmable version which runs flat out and notice fuel dripping from carb when attempting to start. Seems too much pressure? Should I switch to programmable pump and mix w/throttle?

Cheers
I'm running the HV non-program pump and do not use the return valve on the top. I plug it off. Instead I install a T in the feed line to the carb and another T in the fuel filling line. With the T's connected the pump feeds a continuous flow back to the fuel tank. The line connecting the T's is slightly restricted so the higher volume pressure always goes to the carb. The pump is always primed and I don't have to worry about fuel being stalled in the pump.
This may or may not be your problem. I've never owned a 2 or 4 stroke motor which did not pull a little fuel out the carb when choked.
A velocity stack may be the partial answer to the fuel spilling problem. Also - could be the carb gaskets and diaphragm need a little maintenance.

Regards - Jaketab
Old 07-20-2019, 02:52 AM
  #4271  
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Default rainbow-tronic ignition

What is the order of the Cylinders for ignition of rainbow-tronic for moki 150 radial
Old 07-28-2019, 03:39 PM
  #4272  
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Reason #1 for using a fuel pump with the Moki Radial Engine.
I was adjusting valves on my new 250 today and noticed how much grease had collected in the air pulse tube.
Fortunate for me I use a fuel pump with the Moki.

Regards - Jaketab
Old 08-04-2019, 05:20 AM
  #4273  
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Originally Posted by Jaketab View Post
Got my Moki prop drill guide from Vogelsang Aeroscale.

Regards - J Tab
Looks like no longer offered :-(
Old 08-08-2019, 04:20 PM
  #4274  
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hi.. is the 7 cylinder moki 250 good to go? or the S215 VS S180?
I would like to install it on Cy model LA7 96.5" wingspan
Old 08-09-2019, 08:37 AM
  #4275  
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The 215 should be all you need on that LA7. It flies the airworld Fw-190 around fine. Unless you just want to spend the extra money.

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