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15cc Gas RCGF engine information thread

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Old 09-06-2011, 09:42 AM
  #376
ish22
 
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Default RE: 15cc Gas RCGF engine information thread

so if i use this ibec i just need one batt pack on the plane?
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Old 09-06-2011, 10:08 AM
  #377
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Default RE: 15cc Gas RCGF engine information thread

hey thanks fo your help.. i just order one...i hope i works
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Old 09-06-2011, 10:39 AM
  #378
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Default RE: 15cc Gas RCGF engine information thread



Here is the power consumption for the ignition unit.

0.35 amps at idle @ 6.0 volts regulated
0.67 amps at full throttle @ 6.0 volts regulated

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Old 09-06-2011, 10:46 AM
  #379
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Default RE: 15cc Gas RCGF engine information thread

so how many fligts should i get in a 6 v batt pack?
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Old 09-06-2011, 11:37 AM
  #380
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Default RE: 15cc Gas RCGF engine information thread

you can get one of these
http://www.sdshobby.net/lipo-regulat...is1phl7ioa7762

any many more stuff. there have great cutomer service and deleivery times
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Old 09-06-2011, 12:00 PM
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Default RE: 15cc Gas RCGF engine information thread

What is the capacity of the pack ?
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Old 09-06-2011, 02:14 PM
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Default RE: 15cc Gas RCGF engine information thread

2300 m amps
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Old 09-06-2011, 03:12 PM
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Default RE: 15cc Gas RCGF engine information thread

No, with this one you will still need two packs. I use a 2200mah 6v nimh pack for ignition, and a 4.8v 2200mah pack for receiver. I had 5 long flights the other day on my Cub and the battery monitor was indicating yellow, time to recharge. I was also using a smaller prop, so had higher RPM's than normal, as an experiment to see how the engine would run on a 14x6.

BP Hobbies does sell a doohicky that allows you to use one battery for both. Not familiar with it, but it looks good on the website.

I would suggest, ISH, that you make sure your battery is fully charged. If it is old, get a new one, probably a LiFe would be best.

Kenpilot.
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Old 09-06-2011, 03:47 PM
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Default RE: 15cc Gas RCGF engine information thread

thanks for your info...
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Old 09-06-2011, 05:48 PM
  #385
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Default RE: 15cc Gas RCGF engine information thread

this is a test. i am trying to do this. if you read this let me know. opol
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Old 09-06-2011, 05:56 PM
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Default RE: 15cc Gas RCGF engine information thread

i can read it..
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Old 09-21-2011, 03:10 AM
  #387
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Default RE: 15cc Gas RCGF engine information thread

Hello there, can you tell me where can i purchase one of these RCGF engines. I'm interested in 15cc? Can you post links where i can buy it. And one more, is there any dealer of these engines for Europe. Thanks for help.
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Old 09-21-2011, 03:33 AM
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Default RE: 15cc Gas RCGF engine information thread

you can get a RCG engine frm Hobbyking
http://www.hobbyking.com/hobbyking/s...HP_1_54kw.html

this is the same engine as the RCGF
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Old 09-21-2011, 03:18 PM
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Default RE: 15cc Gas RCGF engine information thread

im not having a good luck with the 15 cc.... my cdi... is something wrong,now the carb.. start leaking fuel thruu the choke hole.... im disapoined
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Old 01-30-2012, 03:37 PM
  #390
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Default RE: 15cc Gas RCGF engine information thread

This project is so frustrating that I put it aside for a while. It has been over a year now, And I have tried various remedies for my radio interference problem, but nothing works. The latest thing I tried was using 2.4 Ghz, but even that did not help, all the servos went nuts and froze when the engine was revved up. Someone said that the little LED on-board voltmeters cause issues, so I removed that too, which solved nothing. If I only idle the engine, everything works fine. The trouble only starts when I rev it up. What should I try next? The engine starts and runs great. I just wish I could make it fly an airplane!
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Old 01-30-2012, 04:41 PM
  #391
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Default RE: 15cc Gas RCGF engine information thread

Do you have a hose clamp on the spark plug shield can and are you absolutely sure the plug shield is all the way on? Mine take a lot of force to fully install. I would expect you've already checked all the typical sources of RFI.
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Old 01-30-2012, 04:49 PM
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Default RE: 15cc Gas RCGF engine information thread

Hey there, gasoline powered motor produce much more interference so first you need to separate you ignition system(CDI) at least 30 cm from you radio reciver, even if you have 2,4Ghz system. Best way to do that is to install CDIinto cowl and make sure to protect CDI from vibration produced from engine( place on sponge or rubber and attach on firewall). Second make sure that on trottle rod you have ball links on each side of the rod, this will prevent interference too.

Place some picture here how you done your engine and cdi installation so we can see where is problem. Try to do what i said and report here is it work. Best of luck !!!!
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Old 01-30-2012, 05:11 PM
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Default RE: 15cc Gas RCGF engine information thread

I agree with what Disljenko says. Separate by as much distance as possible your ignition system and battery, switches, etc from your receiver, receiver battery and switches, etc. Cushion the ignition with foam and secure as far forward as possible.

My RCGF 15cc has been somewhat of a challenge, but now that all the kinks are worked out on my Cub installation, the engine has been ultra reliable and fun to run. My big challenge now is how to make it quieter. Have decided to run a bigger prop to lower the RPM, and try to fit a different muffler. Canister will not work on my Lanyu Cub, just won't fit. In order to use the pitts mufflers offered by BP Hobbies, I'll have to extend the standoffs to get more clearance to the firewall. Have also gone away from Coleman fuel to a pre blended mixture calle d Trufuel for more consistent fuel.

Flew this setup on Skis a couple weeks ago when we had a little snow in NJ. Engine ran very well, no problems and an abundance of fun.

Good luck with your interference problem. YOu should not be having an issue with it if your installation is separated, or just maybe you need to replace your ignition box? One other idea, make sure your prop/engine combo does not result in super high RPM's...Shoot for a 14x8 or 15x8...just my opinion.

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Old 01-30-2012, 05:41 PM
  #394
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Default RE: 15cc Gas RCGF engine information thread

Small update on CDI mount....here is a good example what i said earlier. This is RCGF 50cc Chears !!!


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Old 01-31-2012, 12:08 PM
  #395
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Default RE: 15cc Gas RCGF engine information thread


Quote:
ORIGINAL: Kenpilot

I agree with what Disljenko says. Separate by as much distance as possible your ignition system and battery, switches, etc from your receiver, receiver battery and switches, etc. Cushion the ignition with foam and secure as far forward as possible.

My RCGF 15cc has been somewhat of a challenge, but now that all the kinks are worked out on my Cub installation, the engine has been ultra reliable and fun to run. My big challenge now is how to make it quieter. Have decided to run a bigger prop to lower the RPM, and try to fit a different muffler. Canister will not work on my Lanyu Cub, just won't fit. In order to use the pitts mufflers offered by BP Hobbies, I'll have to extend the standoffs to get more clearance to the firewall. Have also gone away from Coleman fuel to a pre blended mixture calle d Trufuel for more consistent fuel.

Flew this setup on Skis a couple weeks ago when we had a little snow in NJ. Engine ran very well, no problems and an abundance of fun.

Good luck with your interference problem. YOu should not be having an issue with it if your installation is separated, or just maybe you need to replace your ignition box? One other idea, make sure your prop/engine combo does not result in super high RPM's...Shoot for a 14x8 or 15x8...just my opinion.

Greetings Kenpilot,

Ihave been scouting around for a gas engine to replace an OS61FX installed on H9 UltraStick. Have given consideration to this engine but have received advise to stay away and look at either DLE 20 or the RCGF 20 as they are way better. Can you share some details on what you refer to as "all the kinks" in your post above? Iwould prefer to make an informed decision about the replacement engine rather than base same on unspecified details from persons who have no experience operating the engine.

Thanks

DaleD
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Old 01-31-2012, 05:32 PM
  #396
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Default RE: 15cc Gas RCGF engine information thread

hi.... im glad you have your 15 cc rcgf working.. mine is just sitting in a box...i need a new ignition.... any other brand... of cdi.... can you suggest me ..? thanks
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Old 01-31-2012, 06:32 PM
  #397
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Default RE: 15cc Gas RCGF engine information thread

To misfit. I'm assuming you are using a Sullivans Rod throttle pushrod or something similar (eg not metal or carbon fibre for the throttle rod). Also check to make sure that the spark plug lead is not leaning against any metal etc (wrap in insulating tape if necessary).

Normally, interference will occur at all revs, including idle, so it is curious that yours only does it when you open the throttle. It might imply that the throttle assembly is touching metal or something as it moves.
 
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Old 01-31-2012, 08:56 PM
  #398
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Default RE: 15cc Gas RCGF engine information thread

I know we have all been snakebit by the RFI problems we had on 72 with the PPM systems but I have been doing some tests on 2.4 with a Turnigy gas ignition system I have and I find that it is simply not affected by ignition RFI.
I set the ignition out with an unshielded spark plug lead and an unshielded spark plug with no resister in the lead next to my 2.4 system. I drove the ignition system from a function generator I have that allows me to run the spark repetition rate up to the point where it will no longer work. It don't have time to charge the coil at a high rate of speed.
The 2.4 system did not wiggle a bit.
I think you probably have a component that is loose in your radio system and vibration causes it to make intermittent contact. Switches are notorious for doing this.
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Old 01-31-2012, 08:59 PM
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Default RE: 15cc Gas RCGF engine information thread

double post
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Old 02-04-2012, 05:48 AM
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Default RE: 15cc Gas RCGF engine information thread


Quote:
ORIGINAL: dirtybird
I think you probably have a component that is loose in your radio system and vibration causes it to make intermittent contact. Switches are notorious for doing this.
+!

check all your electrical connections from battery right through to the ignition and the receiver. try bypassing everything and connecting the battery directly and see what happens.

DaleD

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