CRRC Pro GF26I

[3Dguy]

Double post.

[FLZman]

Okay, I believe that is the one being used. Check the tip(little silver thing at tip) of plug for tightness and any other loose connections in plug cap.

[joseae]

	Quote: Originally Posted by 3Dguy
	Where did you get your NGK CMR7H?

At a local Advance Auto Parts, (3.98 ea.) they didn't have it in stock but was special ordered and arrived the next day. I ordered 2 just in case.

[3Dguy]

Thanks.

[MTS247]

Oh no i hope my radio doesn't glitch! let us know if you find the problem.

Dumb question, should i cut a hole in the cowl for the carb to breath? or can the plastic trumpet thing be quiet close to the cowl?

Also has anyone hacked 10 or 20 mm off the end of the muffler to make fitting easyer. If i can it might mean i can avoid cutting a large slit all the way to the back of the cowl!

[3Dguy]

If the carb intake is close to the cowl, then I'd cut a hole for air. Yes, you can hack off the muffler pipe.

Well, I stuffed mine in the Showtime. The engine with a pitts muffler just barely fit without modification. We're talkin' millimeters here. Cutting the cowl (nicely) was the hardest part. I decieded to use a RCexl ignition, and I'm gonna replace the spark plug with a NGK.

[FLZman]

Boy , just my luck. I am putting the finishing touches on this new plane and just noticed the insulator plate between carb and motor has a crack in it. Is there any jimmy rig fixes to get me by for weekend until I can get a new one headed my way? CA? gasket goop over crack?

Thanks
Z

[ken crane]

	Quote: Originally Posted by joseae
	Problem solved. IT WAS the spark plug. As soon as I replaced the stock plug with an NGK, it only took a couple of flips to start the engine. The only issue I have right now, other than setting up the idle properly, is radio interference. My receiver goes crazy when the engine is running. Even with the sensor box about 15 inches from the receiver it makes it go out of control all the time. I will be trying a different receiver tomorrow but I'm sure this one is in perfect condition. Anyway, thanks everyone for all suggestions.

MAKE SURE YOU HAVE 1 PLASTIC END ON THE THROTTLE LINKAGE AND THAT THE PLUG CAP IS TIGHT. BEEN THERE DONE THAT AS WELL

[dealinrc]

What Radio are you using. The older radios do not like electronic ignitions. To be safe you should use either pcm or 2.4. I have seen this problem before and as soon as he switched to 2.4 it was gone

[3Dguy]

Will a BCMA ignition work with the CRRC 26?

[joseae]

	Quote: Originally Posted by dealinrc
	What Radio are you using. The older radios do not like electronic ignitions. To be safe you should use either pcm or 2.4. I have seen this problem before and as soon as he switched to 2.4 it was gone

As far as I know all PCM does is mask the problem and may eventually lead to failure. My only choice at this point would be 2.4 even though I don't like the idea of investing in a new radio system. I know for a fact there are many guys out there flying gassers with "older" fm radios, even with the same Futaba receiver I am using. I still haven't figured out exactly what's causing the problem but it seems to get worse with higher rpm. At first I thought it was caused by the throttle servo being too close to the ignition but after disconnecting the servo the glitch diminished a little but it's still there. I tried moving the ignition battery and ignition itself but only managed some minor improvements. Next I am going to try another brand/model receiver to see if it does any better. As for the engine itself, I am having trouble setting up the idle, as soon as I go under 2800 rpm (I am running a wood Zinger 16/8) it stops.

[2robinhood]

Where did you buy the engine?
With the troubles you have been having, the RF noise and stopping at 2800 rpm you maybe having ignition problems.
Just remember, you need three basic things for a gasoline engine to run.
1 Fuel
2 Air
3 Spark

There are plenty of other factors that can come into play, but those are your basics.

If you are already up and running then it dies, check fuel and spark.
Is it breaking up / missing, or does it just shut down?
Do you have a temp gun to see what the temp is when it shuts off?
Where do you have your needles set at?
What battery are you running?

From what I have seen, you have only changed to spark plug, right?