DLE 20 funny idle
#26
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The Walbro carburetors have that screw deformed (swaged?) so it is self locking on the shaft. It is deformed after it is installed. It sounds like the guys at DLE did not notice that when they designed their copy and are using a regular screw. If there is no lock washer on the screw, there is nothing retaining it in place but wishful thinking which does not last long. Definitely good for engine sales. Dan.
#27
My Feedback: (19)
The Walbro carburetors have that screw deformed (swaged?) so it is self locking on the shaft. It is deformed after it is installed. It sounds like the guys at DLE did not notice that when they designed their copy and are using a regular screw. If there is no lock washer on the screw, there is nothing retaining it in place but wishful thinking which does not last long. Definitely good for engine sales. Dan.
I've also seen Walbro carbs where the screws were not swaged. Also seen them where they were swaged too much and in the process they broke the throttle shaft right where the screw goes in the weak part of the shaft. With luck, the screw didn't fall out but it could have very easily.
Last edited by Truckracer; 05-18-2014 at 04:09 PM.
#29
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Look at the thread on DLE 20 replacement carb. Thread. To me a idle is just as important as full bore. The guys are talking about the ignitions the dle supply . I am replacing mine with Rcxel ignition pack
#30
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Yeah. I'm not too impressed with the ign. I hate the way when you throttle down it hovers around 2500 to 3000 for like 15 or 20 seconds before really idling down. I'm not sure if it's just the dle's that do it or if the rcxel does it too.
#33
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I just got a new DLE20 from Aerobeez a few weeks ago. Even had to wait an extra couple days for them to come into stock so I assumed (yes I know that that means) that it would be the new ignition. Unfortunately it acts as all of you have said and it sure feels like the step is there. Now I have to take another look and see what version I have. So you all are saying that if it is the suspect ignition module then I should see a number 4 on it somewhere and it should be only rated for 6.0 volts? Hopefully I can see it on the top of the module and not the bottom as it is permanently mounted. I have been running a high idle for flight and click the trim back 4 clicks for landing. So far it has been pretty reliable that way but I have had deadsticks setting it too low.
#34
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Muttdog, you have it right. If you have a 6v module it has the single step ign. curve, which does it's thing at about 2500rpm. You're hoping yours is rated for 8.4v. as that's the newer one. Those have been supplied with new engines for about 2 years now, so my bet is that's what you have if purchased recently, and the "lean" condition mentioned already is the root of your evil.
#36
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I had the same troubles. I have had the butterfly to the throttle come loose as well on the DLE carb, there was no locking washer on mine either. I have never been able to get the butterfly to seat in a position that felt like it was right.. always just a tiny tiny bit off center enough to allow a little air to get passed.. and lately the motor wont even idle down low enough to kill it on its own.
I have replaced my ignition once from Tower that gave me same results.. and a second one from Valley View, that actually made a big difference in its running much smoother and consistent. But that stupid DLE carb will only ever be just 'okay' in my opinion.. it works, but thats about it.. can not get anything fine out of it.
The other day out, warming it up I realized the bearings were seeming to get louder and louder.. So being the wife is learning to fly with this motor, and it is needing to be reliable and long lasting, I ordered up a new Walbro carb, some RC racing Bocca Bearings and a Bowman ring for it. Should be getting the parts all in this week and will report back on how she does when back together
Point is I guess,, your not crazy, these engines are made well, they just skimp a bit with good parts, like the cloned carb, and screwy ignition setup I think..
I have replaced my ignition once from Tower that gave me same results.. and a second one from Valley View, that actually made a big difference in its running much smoother and consistent. But that stupid DLE carb will only ever be just 'okay' in my opinion.. it works, but thats about it.. can not get anything fine out of it.
The other day out, warming it up I realized the bearings were seeming to get louder and louder.. So being the wife is learning to fly with this motor, and it is needing to be reliable and long lasting, I ordered up a new Walbro carb, some RC racing Bocca Bearings and a Bowman ring for it. Should be getting the parts all in this week and will report back on how she does when back together
Point is I guess,, your not crazy, these engines are made well, they just skimp a bit with good parts, like the cloned carb, and screwy ignition setup I think..
#38
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The #4 ignition wasn't a skimp on DLE's part, they were spec'd that way from Rcexl. That in my book is just a classic screw up on their part. I can't imagine why they chose to have that step in the ignition curve. At least they corrected the problem in later engines ... as they did with the bearing problems.
#39
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Yeah, I didn't really mean the ignition was a 'skimp' on parts, just including it in to the list of problematic issues really. The motor in itself is good as far as I have found with mine, over the last couple years. I think I have a close 10 gallons through mine, with all the little issues I have gone through. Pretty much the same common problems you read about from others.
I am expecting after I rebuild mine with the new parts to really come to life. at least, thats what I am hoping.
I am expecting after I rebuild mine with the new parts to really come to life. at least, thats what I am hoping.
#40
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Ahicks has often mentioned that keeping the low end needle on the rich side helps minimize the hang and I fully agree with that. I used to lean my low end so that the engine would purr and sound really nice at idle but no more. I get better results with the richer low end and the number of deadsticks have decreased. They don't deadstick often but certainly less often than when the low needle was tuned a bit leaner. Plus, the amount of hang time is reduced. The high end needle is tuned in the normal manner, peaked and then backed off by 50 to 100 rpm.
#43
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