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Old 10-14-2010, 06:37 PM   #11
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Re: DLE 30 miss firing or something


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Hi Brad saw your vid, I'm goin to go with bad ground at cap. Had the same thing with my da50 ,turned out the braiding pulled out of the cap.Fought the problem for 2 weeks .Try a temporary ground strap from the braiding near the box to a stand off bolt before you rip the cap apart.
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Old 10-14-2010, 11:53 PM   #12
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Re: DLE 30 miss firing or something

A guy at our field had a DL30 with the exact same problem. It ended up being the spark plug wire. We peeled back the cover and it had be arcing in there for some time, about 5" from the cap. Tried a back-up ignition and it worked fine after that.
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Old 10-14-2010, 11:56 PM   #13
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Re: DLE 30 miss firing or something

Thanks guys.
I just realized the little spring thing wasn't in the plugcap. I have put it back in this eveening. I might get to try everything tomorrow and see how it all goes.

Cheers
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Old 10-15-2010, 08:18 AM   #14
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Re: DLE 30 miss firing or something

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Originally Posted by Bdegan View Post
Thanks guys.
I just realized the little spring thing wasn't in the plugcap. I have put it back in this eveening. I might get to try everything tomorrow and see how it all goes.

Cheers

I really doubt if that is the issue because you said your Optical kill switch was flashing on and off. I would look further.
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Old 10-15-2010, 08:50 AM   #15
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Re: DLE 30 miss firing or something

Hi Mike,
I have gone over everything. Even the fuel tank, which I had to redo the fill line and pick up line. I originally had it so the clunks would swing free and not touch the back of the tank when held verticle.
When i was going over everything, I noticed the clunks were now stuck in a corner and wouldn't move when I moved the tank around. I even held the plane inverted nose down and shock it. the clunks stayed stuck in the corner.
I pulled the tank apart and noticed the fuel lines in the tank had swelled and got a bit longer. Enough to push the clunks into a corner and hold them there.

I cut the lines shorter and redid all the plumbing.

When I go to test everything out next, i will be going fully prepared to try multiple combinations of batteries, opti kill switch, regulators etc.
It will be a process of elimination. If it does it with one configuration, i will change out one component at a time until I solve it.
Oh, I even picked up a new spark plug.
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Old 10-15-2010, 09:15 AM   #16
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Re: DLE 30 miss firing or something

I would try plugging the battery directly into ignition without any switch or optical kill. I noticed in your video that everytime you went to a high throttle setting the engine would die. This indicates to me that either you have something being affected by vibration or high current draw because the engine is asking for more power from the battery. It could simply be the battery can't supply the current necessary to run the engine. The information I'm working on is that your optical kill was flashing intermittently which indicates to me that there is a faulty connection somewhere. I really doubt if it is a fuel issue because you would have problems thru the entire throttle range. You have to remember these engines don't suck fuel very well at lower power settings and your issue is only at high power settings.
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Old 10-15-2010, 09:16 AM   #17
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Re: DLE 30 miss firing or something

Brad , i hope you get it figured out , but i'm not so sure it's the spring either . I took the spring out of the cap on my DL 50 and it runs just fine . I pushed the cap on hard to make sure it was on , held it down with my palm and installed a small hose clamp around the base of the cap . There's no way the cap is ever coming loose unless i take the clamp off . Try that out , cheap insurance .
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Old 10-15-2010, 05:56 PM   #18
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Re: DLE 30 miss firing or something

Hey guys..

just wondering...ultimately, what is that spring meant to do? just make a better contact? somehow secure the cap on the plug? when you install the spring, is it suppose to be evenly distributed in the cap? i'm guessing yes.

just wondering...I've got a dle 55 and dl50...my 55 is giving me similar symptoms, and cost me my last Imac contest in Sudbury....lol

Thanks...Eric
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Old 10-15-2010, 08:41 PM   #19
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Re: DLE 30 miss firing or something

I burnt out the plug cap on one of these engines, you really got to force them on. It was a pain to figure it out, It really seemed like a fuel problem when it was an NFG plug cap
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Old 10-15-2010, 09:04 PM   #20
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Re: DLE 30 miss firing or something

Brad... after looking at your video, I'd agree with everyone that it's a faulty ignition (whether it's in the box, the wire or the plug). I had the exact same problem with my Mintor220 and wherever the short was occurring, it seemed to pull some spikes of current and was causing my ignition LEDs to flicker!!

I replaced the ignitions, and it's run like a top since then.

If I were you, I'd simply replace the ignition and try it again!!

Good luck and don't get discouraged!

Cheers

Trev
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