RE: Slow transition on DLE20
[quote]ORIGINAL: bcchi You are fighting the #4 ignition timing.The only way to cure your problem is to change the ignition to a RCEXL from a DLE 30 or 55.If your ign has a #4 on it it has a werid timing curve,not really a curve but timing advances all at once at about 2200 RPM.This why your RPM jumps up all at once.It drops down the same way . It seems like it hangs up on high idle and then drops all at once.This is not the fault of RCEXL,Xu Liang knows this is wrong but this is what DLE wanted.If you put a timing light on it is vary easy to see why this is a problem with the #4 ignition. BCCHI Grumpy #2.AMA 2500 [/quote] This guy (Bill ) knows what he is talking about.....You would be wise to listen.....FWIW.....
Posted on: 9/14/2012 5:02 AM by Author "tande" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11228140

RE: Why is it recommended to use a Ball Link on a Gas Engine (RCG15) throttle arm?
[quote]ORIGINAL: w8ye They are not talking about the ''snap-on'' ball link but the bigger heay duty one http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXD912&P=ML [/quote] Yup....in the "Industrial World" they're called "Heim Joints".....FWIW.....
Posted on: 8/31/2012 6:00 PM by Author "tande" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11213059

RE: dle 20 muffler
I'm very happy with this http://www.valleyviewrc.com/estore/pitts-style-muffler-polished-dle-20cc-gas-engine.html .....your mileage may vary.....
Posted on: 8/27/2012 4:21 AM by Author "tande" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11207329

RE: A123 Question
[quote]ORIGINAL: Truckracer Taz, I don't question your findings and the capacity used out of the battery on each flight .... .but I certainly do question that voltage reading on your charger! That is in line with a fully charged two cell LiPo, not a LiFe battery! Are you sure your charger is operating in the LiFe mode? I would expect to see 7.2 V on the display at the end of a LiFe charge cycle. [/quote] +1....
Posted on: 8/23/2012 6:25 PM by Author "tande" in the forum "Batteries & Chargers"
http://www.rcuniverse.com/forum/fb.asp?m=11203975

RE: YS 70 tuning question
[quote]I'll pull the barrel out of the carb and see if I can determine anything about that before sending it in. [/quote]Ernie....FWIW, just trying to save ya some more trouble.....the carb barrel uses a "Lip" type seal that is "Directional" & is easy to damage when removing/installing.....slide the barrel out from the low/speed adjustment end of the carb.....once removed, notice the direction of the seal "Lip", also at this time you could run a larger drill through the "Air/Bleed" hole if you so choose (I have done this many times).....Again FWIW..... Ed
Posted on: 7/29/2012 4:20 AM by Author "tande" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11173070

RE: YS 70 tuning question
Ernie....You are probably correct on the "20/20" being the standard.....just trying to figure why you are having trouble....like I mentioned, I have two of these little buggars, & two of the 115FZ-S's as well as several of the 110FZ's & a couple 140L's.....love/um all, but I do have to say IMHO the "New" reg. is a blessing!.....I have now moved onto gasser's, up to the 111cc "DLE", BUT I do go back & fly my "YS's" from time to time......Still love the sound/smell/sight (smoke) & feel (on the throttle stick) of a "YS"........I'm rambling.......
Posted on: 7/28/2012 11:41 AM by Author "tande" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11172299

RE: YS 70 tuning question
[quote]ORIGINAL: Ernie Misner You gave it a good go with four of 'em Hobbsy. I'll make just this one run right yet. Thanks, Ern [/quote] Hi Ernie.....Here's hoping we can help....Sounds like you're doing everything right....I have two of these little guys & just "Love/Um".....Have you tried a higher nitro %?.....I am using 30% heli fuel, (never tried 20%)....just wondering if this new reg. may have been designed/calibrated around a higher nitro % ......Higher % = richer & less sensitive settings......FWIW
Posted on: 7/28/2012 4:38 AM by Author "tande" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11172040

RE: YS 70 tuning question
The OP says he has a "YS 70".....If it is the "70FZ-S", reg. is non-adjustable.....same reg. as the "115FZ-S"....
Posted on: 7/27/2012 4:50 PM by Author "tande" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11171679

RE: YS 1.10FZ Prop Nuts ???? HELP!
[quote]ORIGINAL: Cobra1 How about a true turn spinner adaptor. It looks good and serves a second purpose as well. They must make one. Just a thought. [/quote] http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXKE13&P=ML
Posted on: 7/25/2012 7:57 PM by Author "tande" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11169501

RE: Gas Tank Setup?
Myself, I use 1/8" I.D. x 1/4" O.D., soft, & i would guess the most popular......others may vary according to their plumbing requirements....
Posted on: 7/25/2012 9:49 AM by Author "tande" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11168644

RE: Gas Tank Setup?
[quote]ORIGINAL: BOLTMAN What is everyone using for the clunk line inside their gas tanks? Tygon goes hard after time submerged in gas & I am wondering if this will cause problems in a IMAC type model? Or should I be using something else? [/quote] Over here, if you want the best.....this http://www.mcmaster.com/#viton-fluoroelastomer-tubing/=ik5d10 is what we use....
Posted on: 7/25/2012 6:37 AM by Author "tande" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11168429

RE: NEW DLE30!
Everyone I know, spends their money where they THINK they get the biggest bang for the buck (that covers a lot of ground).....When I worked at G.M., they did the same....made no difference where it came from.....
Posted on: 7/23/2012 5:36 AM by Author "tande" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11165518

RE: wing servo wire tubes?
[quote]Anybody using tubes in the fuse for wire chaffing? I can get rubber grommets in a couple of the formers but I can only reach so far back towards the tail.[/quote]I run mine inside a length of foam water/pipe insulation....weighs next to nothing.....flexible....inexpensive....FWIW
Posted on: 7/5/2012 5:53 PM by Author "tande" in the forum "Giant Scale Aircraft - General"
http://www.rcuniverse.com/forum/fb.asp?m=11144603

RE: wing servo wire tubes?
[quote]ORIGINAL: scale only 4 me [quote]ORIGINAL: DaveFri the string and washer idea is simple enough!!.....and cheap!! [/quote] It's the way I've done it for years also [/quote] A pile of sewing thread in the servo/pocket & a vacuum sweeper suction hose where you want it to exit......Done!....
Posted on: 7/4/2012 5:27 PM by Author "tande" in the forum "Giant Scale Aircraft - General"
http://www.rcuniverse.com/forum/fb.asp?m=11143216

RE: customizable 2 & 4 channel transmitters
Might want to talk with these people..... http://www.xtremepowersystems.net/index.php
Posted on: 7/3/2012 12:21 PM by Author "tande" in the forum "RC Radios, Transmitters, Receivers, Servos, gyros"
http://www.rcuniverse.com/forum/fb.asp?m=11141554

RE: EME 35/ EME 60 released
[quote]ORIGINAL: emengines Moreover, some design details are as follows, [/quote]Whats up with the twin/cylinder crank? ....
Posted on: 7/1/2012 12:00 PM by Author "tande" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11138734

RE: YS-FZ110 dies on idle only in flight
What petec said......Also if everything else is to "Spec.", then the reg. is set to lean.....
Posted on: 6/15/2012 8:45 AM by Author "tande" in the forum "YS Engines Support"
http://www.rcuniverse.com/forum/fb.asp?m=11119183

RE: YS115 wont start
[quote]ORIGINAL: bobg tried everything on this engine ,put small amount of fuel in plug hole and then into carb still no pop! took rocker cover off ...bingo !!! valve stuck closed ....[color=#990000]about 5mm clearance on tappet !![/color]! does anyone have sugestions on how to fix this or does it have to be returned for service ! [/quote] That sounds like "Stuck Open".....I've had this happen, sometimes a little carbon formation on the valve/stem will cause it hang/up.....Have you tried inserting a small screwdriver under the spring retainer & lifting with an effort to "Pop" it back to the closed position?.....BUT if it is truly stuck "Closed" & you have 5mm tappet clearance, then you've got more serious issues.....If a valve is "Stuck Closed" & the crank/shaft is rotated; something has to "Give"....resulting in at least a bent push/rod....FWIW....
Posted on: 6/13/2012 4:13 AM by Author "tande" in the forum "YS Engines Support"
http://www.rcuniverse.com/forum/fb.asp?m=11116522

RE: ys 91 ac question
[quote]ORIGINAL: ululi1970 Here's what I found so far: 1) The valve clearance is about 0.05mm, so within specs. 2)[color=#990000] at TDC, the timing mark on the camshaft is at the top. Based on the manual, that is where it is supposed to be. [/color] BTW, to inspect the timing I removed the cover to the camshaft and rotate the cranckshaft. Can the timing be accidentally changed without taking the camshaft out? I do not hink so, and I checked before closing the cover, but just in case. I will do Four Stroke trick as soon as I can get a pressure gauge from the lab... Alberto [/quote] Not on any "YS" I've had & I've had a bunch (but never a 91AC).....TDC as far as I know is NOT used for cam/timing reference.....the reference dot on the crank/shaft while at BDC is not the same as piston TDC.....FWIW....
Posted on: 6/13/2012 3:48 AM by Author "tande" in the forum "YS Engines Support"
http://www.rcuniverse.com/forum/fb.asp?m=11116516

RE: ys 91 ac question
You got this engine used from a guy who said it had new pieces installed......so we can assume it has been disassembled.....do we know by who?, at what skill level?.....the cam timing could be off.....
Posted on: 6/11/2012 7:27 PM by Author "tande" in the forum "YS Engines Support"
http://www.rcuniverse.com/forum/fb.asp?m=11115080

RE: DLE 111
[quote]ORIGINAL: karolh A picture is sometimes worth a thousand words. Karol [/quote][;)] Yes, even the "Reed/Block" is "Directional".....
Posted on: 4/29/2012 8:22 AM by Author "tande" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11061166

RE: DLE 111
[quote]ORIGINAL: acerc tande. Not one for argueing but how do you come to that conclusion. My understanding is it's just an open port. [/quote] The I/M is cast offset from center & with an angle that allows crankshaft/rotation/direction to assist in the intake charging process....
Posted on: 4/29/2012 5:25 AM by Author "tande" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11061002

RE: FZ70 Disassembly
[quote]ORIGINAL: ThumbSkull My guess is that the steel ring does not rotate, the crank just spins with the ring stationary. The case is all aluminum with no insert. [/quote] +1....
Posted on: 4/28/2012 5:57 PM by Author "tande" in the forum "YS Engines Support"
http://www.rcuniverse.com/forum/fb.asp?m=11060608

RE: DLE 111
[quote]ORIGINAL: jetG23 Does anyone know if you can reverse the rotation on this engine to use it as a pusher ? I cant find much info on it , I have read small amounts but nothing concreate [/quote] Yes....you can get it to run the other direction.....but not as strong.....the intake manifold (cast as part of the crankcase), is "Directional".....
Posted on: 4/28/2012 5:50 PM by Author "tande" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11060596

RE: SYSSA 30CC GAS MADE IN USA
[quote]Yes it does...Reduces it a couple dB especially if you make the stinger longer, without robbing any power I can tell. Adding the tone inserts would attenuate noise even more but they rob power a little. [/quote] Thank You......
Posted on: 2/14/2012 11:54 AM by Author "tande" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10958767

RE: SYSSA 30CC GAS MADE IN USA
[quote]Just a thought....has anyone tried cutting the stingers off and using silicone rubber tubing instead? I've made my own silicone stingers by wrapping glass impregnated with Ultra Copper. I use 2 oz cloth and wrap 3 layers on the tube I want to use as sizer. I first line the aluminum with teflon tape and then wrap the glass pre-preg. Then wrap teflon tape over the top of the silicone rubber as much to apply compression as for a smooth finsh. Cures overnight. Simple to actually do and you get a very nice and thin, super light but strong, easily conformable and attachable exhaust stinger. It is a bit messy and I work on a piece of wax paper with gloved hands, but overall an easy technique to follow [/quote] Interesting....Does this have any effect on exhaust noise level? .....
Posted on: 2/14/2012 10:15 AM by Author "tande" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=10958633

RE: Pheonix Extra 330S 60-90 Size
[quote]One thing I could do is attach the wings temporarily to the fuse without the wing tube. If they are flush, then I know the wing tube is longer.[/quote] Simply slide both wings ALL THE WAY onto the wing/tube, minus the fuze, measure the distance between both wing roots, (at the wing/tube) call this Dimension "A"....... Now slide a tape measure through the fuze wing/tube/socket & measure the fuze width at this point, call this Dimension "B"...... Dimension "B" should be greater than Dimension "A"........
Posted on: 2/14/2012 10:08 AM by Author "tande" in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=10957069

RE: Thunder Tiger Cenna 177 and Float set
I have this airframe with the floats.....I would say you need the #3025/1 float kit.....bought mine before "Tower" started carrying them....
Posted on: 2/12/2012 5:00 PM by Author "tande" in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=10955970

RE: Brownouts, first time
These http://www.xtremepowersystems.net/proddetail.php?prod=XPS-TT are worth every penny....captures & holds a colored LED that matches the lowest voltage SPIKE seen during the flight....FWIW....
Posted on: 2/9/2012 4:35 PM by Author "tande" in the forum "JR Radio & Spektrum Radios"
http://www.rcuniverse.com/forum/fb.asp?m=10951896

RE: Pheonix Extra 330S 60-90 Size
[quote]ORIGINAL: ameyam Thats why I am asking if there is some way to fix this Ameyam [/quote] Are you POSITIVE the wing tube is not to long!!!.....therefore not allowing the wings to pull/up tight against the fuze?....I ask, because I had one of these with a wing/tube that WAS to long, causing these same issues.....FWIW.....
Posted on: 2/7/2012 10:06 AM by Author "tande" in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=10948177