DL-50 engine
09-11-2008 | 05:11 AM
#3001
My Feedback: (42)
Joined: Oct 2004
Posts: 276
Likes: 0
Received 0 Likes
on
0 Posts
From: Winston Salem,
NC
RE: DL-50 engine
That is a very good question,
I cant think of a reason why it would not work? But I really do not know for fact that it can be done, I suggest that you Email one of the DL engine vendors they should shed some light on that,
I cant think of a reason why it would not work? But I really do not know for fact that it can be done, I suggest that you Email one of the DL engine vendors they should shed some light on that,
09-11-2008 | 11:22 AM
#3002
My Feedback: (135)
Joined: Jan 2003
Posts: 2,798
Likes: 0
Received 0 Likes
on
0 Posts
From: Dracut,
MA
RE: DL-50 engine
I have one of the original ones with the skinny lugs and the extruded mounts. Could I get a replacement rear casr half with the thick lugs and and put it on? Anyone tried this??
Bob
Bob
09-11-2008 | 12:11 PM
#3003
My Feedback: (14)
Joined: Jan 2002
Posts: 121
Likes: 0
Received 0 Likes
on
0 Posts
From: St. Joseph,
MO
RE: DL-50 engine
ORIGINAL: Meesh
I have one of the original ones with the skinny lugs and the extruded mounts. Could I get a replacement rear casr half with the thick lugs and and put it on? Anyone tried this??
Bob
I have one of the original ones with the skinny lugs and the extruded mounts. Could I get a replacement rear casr half with the thick lugs and and put it on? Anyone tried this??
Bob
BTW, I used Permatex Ultra Copper Hi-Temp between the case halves. I also use it as a muffler sealant instead of the supplied gasket.
09-11-2008 | 12:18 PM
#3004
RE: DL-50 engine
ORIGINAL: Meesh
I have one of the original ones with the skinny lugs and the extruded mounts. Could I get a replacement rear casr half with the thick lugs and and put it on? Anyone tried this??
Bob
I have one of the original ones with the skinny lugs and the extruded mounts. Could I get a replacement rear casr half with the thick lugs and and put it on? Anyone tried this??
Bob
PM me if interested.
09-11-2008 | 01:48 PM
#3006
Joined: Jan 2006
Posts: 2,517
Likes: 0
Received 0 Likes
on
0 Posts
From: Kalona,
IA
RE: DL-50 engine
ORIGINAL: Meesh
I have one of the original ones with the skinny lugs and the extruded mounts. Could I get a replacement rear casr half with the thick lugs and and put it on? Anyone tried this??
Bob
I have one of the original ones with the skinny lugs and the extruded mounts. Could I get a replacement rear casr half with the thick lugs and and put it on? Anyone tried this??
Bob
Chad
09-11-2008 | 08:40 PM
#3008
Joined: Oct 2006
Posts: 142
Likes: 0
Received 0 Likes
on
0 Posts
From: Marsh HarbourAbaco, BAHAMAS
RE: DL-50 engine
Hi ther. i have a new dl with about 3 gals through her, I had a TBM 22x8 prop and was gettin 6500 rpms peak. With this set up I could hover my 17.5 lb yak at half throttle, maybe a tad bit over half. Today I flew her with a Vess 22x8 (B), turning 7110 rpms.....WOW.... Its like I gained a few more horse power... This is a #1 engine, Im really happy with it.
P.S. Im not knocking TBM props but I'm just stating my findings. My yak came from TMB and I love it, the service at TBM is awsome.
P.S. Im not knocking TBM props but I'm just stating my findings. My yak came from TMB and I love it, the service at TBM is awsome.
09-12-2008 | 07:34 AM
#3009
Senior Member
Joined: Feb 2004
Posts: 157
Likes: 0
Received 0 Likes
on
0 Posts
From: West Elelizabeth,
PA
RE: DL-50 engine
ORIGINAL: krproton
I forgot to ask a question in my last post....
You know that spring that goes inside the spark plug cap on the end of the ignition module? I'm tired of seeing it laying on my workbench next to my plane or on the floor after I've had the cap off when working on my model for whatever reason. It always falls out. Then I have to remove the spinner, prop and cowl so I can pry the cap off the spark plug to put the spring back in big hassle.
So, is anybody running their DL without this spring? I asked this once before and got only one answer from Bob Pastorello who said I have to use it. He's the DL "guru" on this forum, but I was wondering if anybody has actually run their engines without the spring.
I'll hang up and listen for your answer.
I forgot to ask a question in my last post....
You know that spring that goes inside the spark plug cap on the end of the ignition module? I'm tired of seeing it laying on my workbench next to my plane or on the floor after I've had the cap off when working on my model for whatever reason. It always falls out. Then I have to remove the spinner, prop and cowl so I can pry the cap off the spark plug to put the spring back in big hassle.
So, is anybody running their DL without this spring? I asked this once before and got only one answer from Bob Pastorello who said I have to use it. He's the DL "guru" on this forum, but I was wondering if anybody has actually run their engines without the spring.
I'll hang up and listen for your answer.
09-13-2008 | 02:02 PM
#3010
RE: DL-50 engine
Hello everybody, I've decided to partecipate to this very interesting discussion making some pictures of my last DL50 installation on GP YAK54 (not yet flown). This forum gave me lots of info and tips about this engine. This is my 2nd DL because the first one has been cracked during the break-in procedure ([:@]). I will write a dedicated post on this thread to tell you what's happended on the 1st DL.......
I have installed a very big fuel filter but I've seen that some air bubbles remains on top of filter case so I'm afraid that these air bubbles goes into carburettor and quit the engine. For this reason I'm preparing to replace it with a smallest one (but not too small).
my engine setup :
DL50
Muffler: AS-Power (from Italy)
Power Switch for engine ignition: ESC electronic Mosfet switch - Alewings (from Italy)
Ign.battery pack: 4 x 1700 NiCd Sanyo
Hope my english is correct, bye from Florence (Italy)
Riccardo
I have installed a very big fuel filter but I've seen that some air bubbles remains on top of filter case so I'm afraid that these air bubbles goes into carburettor and quit the engine. For this reason I'm preparing to replace it with a smallest one (but not too small).
my engine setup :
DL50
Muffler: AS-Power (from Italy)
Power Switch for engine ignition: ESC electronic Mosfet switch - Alewings (from Italy)
Ign.battery pack: 4 x 1700 NiCd Sanyo
Hope my english is correct, bye from Florence (Italy)
Riccardo
09-13-2008 | 03:43 PM
#3012
RE: DL-50 engine
Rocc,
If you are referring to the tygon piping on TOP of carb diaphragm cover , please note that I've learned this tip here, in this forum. It's purpose is to maintain a stable reference pressure for tthe regulator's diaphragm. This arrangement seems to guarantee a stable carb needle setup (both on the ground and during flying) because ref.pressure remains the same. For a better explanation (and better english terms...) please make a search in this forum.
Riccardo
If you are referring to the tygon piping on TOP of carb diaphragm cover , please note that I've learned this tip here, in this forum. It's purpose is to maintain a stable reference pressure for tthe regulator's diaphragm. This arrangement seems to guarantee a stable carb needle setup (both on the ground and during flying) because ref.pressure remains the same. For a better explanation (and better english terms...) please make a search in this forum.
Riccardo
09-13-2008 | 07:10 PM
#3013
Senior Member
Joined: Nov 2006
Posts: 196
Likes: 0
Received 0 Likes
on
0 Posts
From: Northern town, CHILE
RE: DL-50 engine
Hello folks, sorry for my english, ill try my best. Im so frustrated with this dl
I have my maiden of the dl100 is my 3rd DL engine.
30 mins break in ground uncowled 1:30 pennzoil 2000 rpm
After that i tried to find burbling sound richening the high needle but imposible 3 turns and nothing rpm was 6200 jxf 26x10
Flew 5 litres of mix and the engine begans losening power landed succesfully one cilinder quit working
My experience said me that is possible a dirty carburetor problem but i disasembled it and nothing was found
all flights was at half throttle and burbling sound (richened) except sometimes full throtle to clean up the engine, but shorts periods
Removed the sparks and found this
[img][/img]
Can you help me?? i have two sparks more, but i think the problem was other
I have my maiden of the dl100 is my 3rd DL engine.
30 mins break in ground uncowled 1:30 pennzoil 2000 rpm
After that i tried to find burbling sound richening the high needle but imposible 3 turns and nothing rpm was 6200 jxf 26x10
Flew 5 litres of mix and the engine begans losening power landed succesfully one cilinder quit working
My experience said me that is possible a dirty carburetor problem but i disasembled it and nothing was found
all flights was at half throttle and burbling sound (richened) except sometimes full throtle to clean up the engine, but shorts periods
Removed the sparks and found this
[img][/img]
Can you help me?? i have two sparks more, but i think the problem was other
09-13-2008 | 08:10 PM
#3014
Senior Member
My Feedback: (2)
Joined: Jul 2008
Posts: 369
Likes: 0
Received 0 Likes
on
0 Posts
From: Miami beach, FL
RE: DL-50 engine
ORIGINAL: sniperpilot
Hello folks, sorry for my english, ill try my best. Im so frustrated with this dl
I have my maiden of the dl100 is my 3rd DL engine.
30 mins break in ground uncowled 1:30 pennzoil 2000 rpm
After that i tried to find burbling sound richening the high needle but imposible 3 turns and nothing rpm was 6200 jxf 26x10
Flew 5 litres of mix and the engine begans losening power landed succesfully one cilinder quit working
My experience said me that is possible a dirty carburetor problem but i disasembled it and nothing was found
all flights was at half throttle and burbling sound (richened) except sometimes full throtle to clean up the engine, but shorts periods
Removed the sparks and found this
Hello folks, sorry for my english, ill try my best. Im so frustrated with this dl
I have my maiden of the dl100 is my 3rd DL engine.
30 mins break in ground uncowled 1:30 pennzoil 2000 rpm
After that i tried to find burbling sound richening the high needle but imposible 3 turns and nothing rpm was 6200 jxf 26x10
Flew 5 litres of mix and the engine begans losening power landed succesfully one cilinder quit working
My experience said me that is possible a dirty carburetor problem but i disasembled it and nothing was found
all flights was at half throttle and burbling sound (richened) except sometimes full throtle to clean up the engine, but shorts periods
Removed the sparks and found this
Maybe you should follow the manual's instructions next time re breaking in an engine?
09-13-2008 | 08:13 PM
#3015
Senior Member
Joined: Nov 2006
Posts: 196
Likes: 0
Received 0 Likes
on
0 Posts
From: Northern town, CHILE
RE: DL-50 engine
The spark particles aren´t metal particles is a hard carbon material that covered the elctrodes.
I think my break in procedure was right.
I think my break in procedure was right.
09-13-2008 | 08:43 PM
#3016
My Feedback: (2)
RE: DL-50 engine
Guess I have to order some bearings for one of my DL50's. I have been losing power all summer and now the engine kept changing tune. I pulled the cowl off and found the dreaded black goo coming out of the front bearing and was all over the inside of the cowl. I got the engine in the sun after I cleaned it up and sure enough when I move the crankshaft in and out I could see the front bearing moving back and forth in the casing. I pulled the engine apart and both front and rear bearings had been spinning in the casing and had it polished up. I think I can get by with just changing the two bearings and the crush washer and reassembling with Locktite 620. Everything else was glued real good with bearing retainer. It was almost like someone failed to put some in the casing when it was assembled.
Doug
Doug
09-14-2008 | 06:27 AM
#3019
Senior Member
Joined: Jan 2003
Posts: 161
Likes: 0
Received 0 Likes
on
0 Posts
From: MaitlandNSW, AUSTRALIA
RE: DL-50 engine
ORIGINAL: Anders/Helene
Anybody knows if the DL 50 has the same mounting dimensions/footprint as the DA 50?
Anders
Anybody knows if the DL 50 has the same mounting dimensions/footprint as the DA 50?
Anders
From DL Engines Australia's Website
Are the DL50 mounting dimensions the same as a DA-50?
Prop hub pattern is the same.
Muffler mount is the same (you can use mufflers designed for the DA-50 with this engine, bolt straight on)
Engine mounts also have almost the same spacing. If you previously had a DA engine installed, you can bolt the DL engine in place if you use the engines mounts supplied with the DL Engine. There is a 1mm difference each way in the mounting pattern. Most of the time it will bolt straight on if you loosen your mounts slightly, fit the engine and retighten or use the supplied machined standoffs. Depends on how accurately the original mounting holes have been drilled on the plane, and how much 'extra' (ie oversized mounting hole) movement is available in your existing bolt holes.
The overall physical dimensions are slightly different. If you where to bolt the DL in a plane that had a DA in it previously you will find the muffler will sit about 4mm further back, and the prop hub will be a bit further forward.
The muffler supplied with the DL50 is slightly larger, compared to the stock DA one.
You can rotate the carby if you throttle linkage is on the other side.
The bolts used on the DL50 are all 5mm metric sizes.
Mounting bolt pattern is 80mm wide and 67 mm high (centre to centre) see mounting Template
Distance from back of mounting lugs to face of prop hub is 102mm , and the supplied standoffs are 68mm.
Total length of motor from back face of stock standoffs to front face of prop hub is 170mm
Prop hub pattern is the same.
Muffler mount is the same (you can use mufflers designed for the DA-50 with this engine, bolt straight on)
Engine mounts also have almost the same spacing. If you previously had a DA engine installed, you can bolt the DL engine in place if you use the engines mounts supplied with the DL Engine. There is a 1mm difference each way in the mounting pattern. Most of the time it will bolt straight on if you loosen your mounts slightly, fit the engine and retighten or use the supplied machined standoffs. Depends on how accurately the original mounting holes have been drilled on the plane, and how much 'extra' (ie oversized mounting hole) movement is available in your existing bolt holes.
The overall physical dimensions are slightly different. If you where to bolt the DL in a plane that had a DA in it previously you will find the muffler will sit about 4mm further back, and the prop hub will be a bit further forward.
The muffler supplied with the DL50 is slightly larger, compared to the stock DA one.
You can rotate the carby if you throttle linkage is on the other side.
The bolts used on the DL50 are all 5mm metric sizes.
Mounting bolt pattern is 80mm wide and 67 mm high (centre to centre) see mounting Template
Distance from back of mounting lugs to face of prop hub is 102mm , and the supplied standoffs are 68mm.
Total length of motor from back face of stock standoffs to front face of prop hub is 170mm
Pupmeister
09-14-2008 | 12:31 PM
#3020
My Feedback: (22)
Joined: Jan 2003
Posts: 2,232
Likes: 0
Received 0 Likes
on
0 Posts
From: palm harbor,
FL
RE: DL-50 engine
I had some good fortune$$$ bestowed on me so I am ready to buy a DL50.not sure what plane to buy but was looking at a yak from TBM.and liked the looks of the new extra 330 from great planes.The only negatives I have read or been told by users is beware of fakes if buying from a international source and make sure you get the newer version as the weak muffler on the original was well documented.I was advised although a few bucks extra go with DLUSA as they back and warranty what they sell.and it appears my 22x8 props are the perfect match.sooooo am I missing anything and as always I love plane suggestions..
09-14-2008 | 12:42 PM
#3021
Senior Member
My Feedback: (2)
Joined: Jul 2008
Posts: 369
Likes: 0
Received 0 Likes
on
0 Posts
From: Miami beach, FL
RE: DL-50 engine
ORIGINAL: cloudancer03
I had some good fortune$$$ bestowed on me so I am ready to buy a DL50.not sure what plane to buy but was looking at a yak from TBM.and liked the looks of the new extra 330 from great planes.The only negatives I have read or been told by users is beware of fakes if buying from a international source and make sure you get the newer version as the weak muffler on the original was well documented.I was advised although a few bucks extra go with DLUSA as they back and warranty what they sell.and it appears my 22x8 props are the perfect match.sooooo am I missing anything and as always I love plane suggestions..
I had some good fortune$$$ bestowed on me so I am ready to buy a DL50.not sure what plane to buy but was looking at a yak from TBM.and liked the looks of the new extra 330 from great planes.The only negatives I have read or been told by users is beware of fakes if buying from a international source and make sure you get the newer version as the weak muffler on the original was well documented.I was advised although a few bucks extra go with DLUSA as they back and warranty what they sell.and it appears my 22x8 props are the perfect match.sooooo am I missing anything and as always I love plane suggestions..
The Extreme Flight Extra 300 is the best you can get. Zero KE-coupling, flies the same inverted as straight, lands like a trainer and does all the 3D tricks you can throw at it. http://www.extremeflightrc.com/html/50ccExtra.html
My second choice: http://performancercaircraft.com/html/yak54/yak54.html
Third: http://www.extremeflightrc.com/html/88yak54.html
Edit: Yes you can best buy the DL50 from dlusa.net or else from Hobby City if you wanna save $35 and don't care about warranty.
09-14-2008 | 01:10 PM
#3022
Junior Member
My Feedback: (1)
Joined: Aug 2002
Posts: 17
Likes: 0
Received 0 Likes
on
0 Posts
From: Gardner, MA
RE: DL-50 engine
mstam1971
Have you ever tried a Vess 23A on the DL50? Primarily thinking 3D application. I'm currantly turning a Vess 22B on my 30% SD Yak54. I'm torn between the 23A or 23B. I think the 23C will be too much of a load on the engine during hovers, waterfalls, etc.
Have you ever tried a Vess 23A on the DL50? Primarily thinking 3D application. I'm currantly turning a Vess 22B on my 30% SD Yak54. I'm torn between the 23A or 23B. I think the 23C will be too much of a load on the engine during hovers, waterfalls, etc.
09-14-2008 | 01:23 PM
#3023
Senior Member
My Feedback: (2)
Joined: Jul 2008
Posts: 369
Likes: 0
Received 0 Likes
on
0 Posts
From: Miami beach, FL
RE: DL-50 engine
ORIGINAL: rcflyr
mstam1971
Have you ever tried a Vess 23A on the DL50? Primarily thinking 3D application. I'm currantly turning a Vess 22B on my 30% SD Yak54. I'm torn between the 23A or 23B. I think the 23C will be too much of a load on the engine during hovers, waterfalls, etc.
mstam1971
Have you ever tried a Vess 23A on the DL50? Primarily thinking 3D application. I'm currantly turning a Vess 22B on my 30% SD Yak54. I'm torn between the 23A or 23B. I think the 23C will be too much of a load on the engine during hovers, waterfalls, etc.
If you're not using a pipe, the 23B is the absolute upper limit and the 23C will be too much. For 3D, try to keep the rpm around 7000rpm on a wooden prop, 7200 carbon, for a 50cc engine that is.
09-14-2008 | 04:02 PM
#3025
My Feedback: (42)
Joined: Oct 2004
Posts: 276
Likes: 0
Received 0 Likes
on
0 Posts
From: Winston Salem,
NC
RE: DL-50 engine
My .02 worth,
On the DL engine my experience on working on these engines for fellow club members I strongly recomend a vender that has a record of good warrantee services, The china work force has not yet master consistence of qualety control yet, But they will as time goes on,
The Quique Yak 54 is a super flyer Im very pleased with the one I have,
On the DL engine my experience on working on these engines for fellow club members I strongly recomend a vender that has a record of good warrantee services, The china work force has not yet master consistence of qualety control yet, But they will as time goes on,
The Quique Yak 54 is a super flyer Im very pleased with the one I have,
