DLE-85 85cc Gas Engine at troybuiltmodels.com
12-22-2013, 05:15 AM
#101
This fellow was actually flipping the prop clockwise in a manner we would normally use to start the engine. He was using 10 flips clockwise, perhaps only one or two would be needed for the DLE-85. The only other DLE i have is a 111, like yours, it starts easily usually the traditional method.
12-23-2013, 09:01 AM
#103
My Feedback: (71)
Seems that guys are getting broad ranges in RPM readings on their DLE 85 with 26x10 props, from 5800 to 6700.
I find very little variation in rpm's between brands in Menz/Xoar/Vess. MSC will load up more, but may be drop 200 rpm's, not 900.
It must be reflection of broad variances/tolerances in the manufacturing. Not seem like a good sign does it???
I'm putting mine in a Ziroli P51, waiting for engine mounting to see my own engine output.
I find very little variation in rpm's between brands in Menz/Xoar/Vess. MSC will load up more, but may be drop 200 rpm's, not 900.
It must be reflection of broad variances/tolerances in the manufacturing. Not seem like a good sign does it???
I'm putting mine in a Ziroli P51, waiting for engine mounting to see my own engine output.
12-23-2013, 03:11 PM
#104
I haven't touched the needles and on the 24x10 I was getting 40lb static thrust. I haven't measured the thrust with the 26x10 yet. I will do that before I try the 22x10x 4. Either way the 85 is a good choice for 50cc warbirds that need the weight up front anyways, power is not overkill at all.
TB
TB
12-23-2013, 09:19 PM
#105
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Hi i would guess its a broad range of engine tuning from the handlers not the engines as i can detune my 3W85 down to that easy..
40 Pounds of static thrust is very good its what i get from my 3W85 with a Chinese 26X10 prop so good numbers when you think my 3W85,s i have two cost over $1000 each.
If the DLE 85 was around a few years ago i would have gone for that.
My 3W has a three bearing crankshaft and they are very good engines. I am not sure how many bearings are in the DLE85
The 3W at nearly twice the cost of the DLE you have to think a bit.
I run a DLE55 as well and its an excellent engine no problems.
Dave.
40 Pounds of static thrust is very good its what i get from my 3W85 with a Chinese 26X10 prop so good numbers when you think my 3W85,s i have two cost over $1000 each.
If the DLE 85 was around a few years ago i would have gone for that.
My 3W has a three bearing crankshaft and they are very good engines. I am not sure how many bearings are in the DLE85
The 3W at nearly twice the cost of the DLE you have to think a bit.
I run a DLE55 as well and its an excellent engine no problems.
Dave.
12-25-2013, 12:14 PM
#111
Got it. Thanks.
I read about your P-47 earlier today. Sorry it happened. This is a very rewarding hobby but losing one is a heart breaker. Especially one you built versus an assembled arf. Those hurt too of course but not like one you put a lot of time in to constructing. Was the DLE-85 in it?
I read about your P-47 earlier today. Sorry it happened. This is a very rewarding hobby but losing one is a heart breaker. Especially one you built versus an assembled arf. Those hurt too of course but not like one you put a lot of time in to constructing. Was the DLE-85 in it?
12-26-2013, 06:07 PM
#116
Today I put the 85 on the bench and test ran it. It started right up but would not stay running at the 4000rpm setting on my throttle. This is where the dead stick happened, at this throttle setting. So I tuned the engine and had to turn out both needles a 1/3 turn to get it to run smoothly threw all throttle settings, and sustained running. I did three 15min test, The temp was in the 40s and 50s, The reason for my flame out was she was lean. I had it set to the recommended one turn setting, and ran great until it died. These engines are very blunt about what they want 
. Now I am at one and a 1/3 on both needles and she is running really good, 5900rpms on the 26x10 Xoar. I have about 130 min on the engine at this time. Engine head temps where in the 190 to 240 over a 15 min run on the stand, mostly at 3000- 4000 rpms.
TB
. Now I am at one and a 1/3 on both needles and she is running really good, 5900rpms on the 26x10 Xoar. I have about 130 min on the engine at this time. Engine head temps where in the 190 to 240 over a 15 min run on the stand, mostly at 3000- 4000 rpms. TB
Last edited by TonyBuilder; 12-26-2013 at 06:11 PM.
12-26-2013, 06:56 PM
#117
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I mounted my on the EG Raven 33% but required lot of modification because the firewall too long and I don't want to cut the firewall so I made a short standoff to use with the vibration damper came with the engine, next i have to cut the big fat muffler to fit under the firewall. After did all that I thought it will be fit nicely inside the the cowl but damn the front muffle still hit the bottom cowl that required to cut a small hole, again i don't want to cut the hole in front of the cowl and decided to go with the pitts muffler and build that by myself, ran to the metal stores picked up some tubing and 1/16 sheet Aluminum and make it in few hours, now just need to weld them together and waiting for the prop and few more stuff to complete build.
Tom
Tom
12-27-2013, 03:38 AM
#118
Today I put the 85 on the bench and test ran it. It started right up but would not stay running at the 4000rpm setting on my throttle. This is where the dead stick happened, at this throttle setting. So I tuned the engine and had to turn out both needles a 1/3 turn to get it to run smoothly threw all throttle settings, and sustained running. I did three 15min test, The temp was in the 40s and 50s, The reason for my flame out was she was lean. I had it set to the recommended one turn setting, and ran great until it died. These engines are very blunt about what they want . Now I am at one and a 1/3 on both needles and she is running really good, 5900rpms on the 26x10 Xoar. I have about 130 min on the engine at this time. Engine head temps where in the 190 to 240 over a 15 min run on the stand, mostly at 3000- 4000 rpms.
TB
. Now I am at one and a 1/3 on both needles and she is running really good, 5900rpms on the 26x10 Xoar. I have about 130 min on the engine at this time. Engine head temps where in the 190 to 240 over a 15 min run on the stand, mostly at 3000- 4000 rpms. TB
12-27-2013, 07:12 AM
#119
This is my first rear carburetor engine, this may seem like a stupid question but i don't know the answer so i will ask. When this engine is bolted up there is very clearance between the carb and firewall. Is there a through hole needed in the firewall to allow for intake air?
12-27-2013, 03:26 PM
#120
This is my first rear carburetor engine, this may seem like a stupid question but i don't know the answer so i will ask. When this engine is bolted up there is very clearance between the carb and firewall. Is there a through hole needed in the firewall to allow for intake air?
TB
03-11-2014, 11:08 AM
#121
I am looking for a stock muffler for the DLE85. I made mine into a scale muffler and I want to break the engine in on another airframe. I cant use the modified muffler so if any of you guys are not using your stock muffler and are willing to sell it send me a PM.
Thanks.
TB
Thanks.
TB
03-21-2014, 01:14 AM
#122
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This is my first rear carburetor engine, this may seem like a stupid question but i don't know the answer so i will ask. When this engine is bolted up there is very clearance between the carb and firewall. Is there a through hole needed in the firewall to allow for intake air?
I have a 1/4 scale don smith P-51. Looks like the engine for it.
05-10-2014, 03:19 PM
#123
Today was a good day, the gremelan was flushed out and desposed of. When I got to the fueld I tried to get the engine to start, would not happen. So next we tested for spark, we were not getting a strong spark so I installed a new ignition module, my buddy had one new in the box for his DLE55. After the new ignition was installed it did start. Took a bit being this engine is finicky. Two turns with no choke, two flips with the choke, then no choke for about ten flips and she starts, throttle about 1/4. I am trying different starting procigures to see what works. The engine is running great and I got 5 -10min flights in. My bats only can take 50min of flight befor I need to charge.
This is the hardest engine I have ever had to start. But once it is broken in and I learn how to start it she should be good. I think she likes more throttle on start then all my other engines need. So now I will give her three or four flips with the choke closed at half throttle, then take the choke off and flip till she starts.
As fare as running and performance. I am running a Xoar 26x10 and the rpms are at 6400. At landing and shut down engine head temp way 180, maybe 40 less then the prototype (Angie my P-47), but I'm flying with no cowl.
I did not notice much diferance in flight performance from my EME120. The engine is very strong and she flies great in this frame. I'm taking it easy as I am still breaking her in but I did do some hovering and she hangs just fine, vertical is strong and this is where you see the diferance in the 120 and the biger prop. As for speed she felt as fast at full in the patturn. Vibration is more at idle and low rpms, at full she is smooth. The prototypes cockpit took a beating from the vibration and I am making changes for that. Overall the engine is very strong, but with the stock muffler she is louder then my EME and louder then the custom muffler I had in the prototype. I will take some db readings later in the test flying. I will contact TBM to see if they will replace the bad ignition!
Fule consumption on a ten min flight with moderat throttle use is about 8oz. Later I will do a ten min flight at full in the patturn to see max fuel use. I have 15 flights on this engine and need 40 for break in so maybe after ten more I will try the 4 blade prop and see how it performs compared to the two blader.
This is the hardest engine I have ever had to start. But once it is broken in and I learn how to start it she should be good. I think she likes more throttle on start then all my other engines need. So now I will give her three or four flips with the choke closed at half throttle, then take the choke off and flip till she starts.
As fare as running and performance. I am running a Xoar 26x10 and the rpms are at 6400. At landing and shut down engine head temp way 180, maybe 40 less then the prototype (Angie my P-47), but I'm flying with no cowl.
I did not notice much diferance in flight performance from my EME120. The engine is very strong and she flies great in this frame. I'm taking it easy as I am still breaking her in but I did do some hovering and she hangs just fine, vertical is strong and this is where you see the diferance in the 120 and the biger prop. As for speed she felt as fast at full in the patturn. Vibration is more at idle and low rpms, at full she is smooth. The prototypes cockpit took a beating from the vibration and I am making changes for that. Overall the engine is very strong, but with the stock muffler she is louder then my EME and louder then the custom muffler I had in the prototype. I will take some db readings later in the test flying. I will contact TBM to see if they will replace the bad ignition!
Fule consumption on a ten min flight with moderat throttle use is about 8oz. Later I will do a ten min flight at full in the patturn to see max fuel use. I have 15 flights on this engine and need 40 for break in so maybe after ten more I will try the 4 blade prop and see how it performs compared to the two blader.
Last edited by TonyBuilder; 05-10-2014 at 03:24 PM.
05-10-2014, 04:03 PM
#124
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Good to hear.
I use this ignition on my DLE55. For the price I have 2 in my spare's box. Comes with the hall sensor as well.
http://www.hobbyking.com/hobbyking/s...s_Engines.html
If you want to save a few buck's and don't need the hall sensor this one works well too.
http://www.hobbyking.com/hobbyking/s...C_Engines.html
I use this ignition on my DLE55. For the price I have 2 in my spare's box. Comes with the hall sensor as well.
http://www.hobbyking.com/hobbyking/s...s_Engines.html
If you want to save a few buck's and don't need the hall sensor this one works well too.
http://www.hobbyking.com/hobbyking/s...C_Engines.html
05-10-2014, 04:12 PM
#125
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On my the cab completely inside the firewall and i am not sure because that it took a while for the engine idle. For landing i had to drop the throttle all the way down before enter the turn to allow the engine get to idle enough speed for land and if I don't do that the airplane way too fast for landing. Anyone know what cause ?
Thanks
Thanks