RE: Testing the new NV (Norvel) .40 size (6.5cc) gasoline glow engine
Here is the excerpt from the instruction sheet that comes with the NV .40 gasoline engine. They suggest using Klotz Benol. They do not beleive that the current two cycle engine oils are capable of lubricating the NV .40 engine properly. I assume they did try using oils other than castor oil too.
Posted on: 5/22/2013 5:00 AM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11519027

RE: Ross Engines
I am quite partial to that Ross flat six engine myself. I actually wonder if anyone actually used the engines in a airplane. I think the vast majority of the engines sold to modellers, even way back in the 1970's and 80's probably all wound up being displayed and not used. They have a bit of a story about the engines that Lou Ross made here http://modelenginenews.org/drj/ross4.html There are several varieties of the flat twin. I have seen rear exhaust and side exhast versions of that engine, and having the carb towards the rear and in the middle too.
Posted on: 5/22/2013 4:40 AM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11519003

RE: Evolution 58GT gas engine Ignition problem and CH Ignition conversion
Nice plane, I do like the P47's a lot. yeah I am planning to put my engine in a Great Planes Giant Aeromaster, so it'll likely be overpowered too. But it seems everyone except the original author of a magazine review were using 50cc engines or better in the plane. But the engine does have a pretty nice carb and throttle response too. I don't have to fly around at full throttle. :D Thanks Pe, I think the engine is running great and I am going to like it a lot.
Posted on: 5/20/2013 7:45 PM by Author "earlwb" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11517761

RE: Testing the new NV (Norvel) .40 size (6.5cc) gasoline glow engine
I just got my example of the NV 40GX gas RC engine in today. it is looking pretty good. Now I have to get it test run and mounted on something.
Posted on: 5/20/2013 7:39 PM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11517752

RE: Piston build up, time to learn more from the masters...
yeah that looks about normal after a few gallons of gas has been run through a engine. Cheaper grade oils leave more carbon on the engine than the better oils do. On some of my engines the carbon deposits weren't too hard and could be scraped off easily enough. I was thinking that some Dawn Power Dissolver and a old stiff bristle toothbrush would help clean it off if you want to clean it some. Keep the DDD away from ferrous metal parts like the piston ring of course. You can wash it off using hot water from the sink and dry and oil it lightly.
Posted on: 5/19/2013 8:27 PM by Author "earlwb" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11516660

RE: Evolution 58GT gas engine Ignition problem and CH Ignition conversion
Here are some pics I took test running the Evolution 58cc gas engine using the CH-Ignitions conversion setup on it. It actually ran pretty good like that. No nasty tendencies like kicking back on me either. I didn't see any difference in performance versus the old Valach Ignition module. Of course that in cowl muffler even though it is large does not do much to quiet the engine down any. I measured 102DB using my iPhone DB meter app.
Posted on: 5/19/2013 6:30 PM by Author "earlwb" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11516536

RE: solvent for removing gaskets
I use a razor blade scraper tool. They come in quite a few different designs and or shapes. Solvents or chemicals are way too dangerous due to the nature of the gasket materials used. The chemicals are more likely to eat or corrode the metal parts more than the gaskets.
Posted on: 5/18/2013 6:47 AM by Author "earlwb" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11515078

RE: Testing the new NV (Norvel) .40 size (6.5cc) gasoline glow engine
Does castor oil mix with pump gasoline OK? Or do you need to use Klotz benol or something instead? Could you use a synthetic oil such as Stihl Ultra or Redline, etc? I happen to have a old brand new profile .40 size 3D plane that ought to be perfect for the engine, so I ordered one of the Norvel Gas engines to use on it.
Posted on: 5/17/2013 6:35 PM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11514764

RE: OS 1.60fx cline regulator help
The other thing to think about is the Cline Regulator is sort of the same as the regulator in a Walbro carb too. It has a small hole in the cover that allows atmospheric air pressure in so the diaphragm can perform its job. But in a model airplane, as the plane does its aerobatics the air flow across the regulator can change the pressure being felt and it upsets the fuel pressure regulation. It is sometimes worse with cowled in engines too. Usually the folks will put a fitting onto the cover and route a tube back into the fuselage where the airplressure stays more constant and some other folks use something like a pitot tube in reverse too. pe Reievers at MVVS.NL had a big thread or article about it with pics.
Posted on: 5/17/2013 10:59 AM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11514385

RE: New Evolution 10cc gas engine
[quote]ORIGINAL: Rudeboy I've just about had it with the google translated russian about marriage and life. Now, what I would like to hear about is the engines that apparently are eating up the crankpin. I'm looking into one of the 20cc gassers, but those reports of busted crankpins Within the first gallon got me thinking I'll probably be beta-testing for Evolution if I buy one of these. Anybody have any info about how big the needle bearing in the 10cc is, and how it stacks up to the 15 and 20cc engines? [/quote] They haven't begun shipping the Evolution 20cc gasser engines yet. So how could anyone be breaking crankpins on them yet? What engine are you talking about?
Posted on: 5/17/2013 8:19 AM by Author "earlwb" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11514207

RE: Tuned Pipe Coupler
yeah they can deteriorate over time. Mac's Mufflers sells the couplers and you can order direct or order from your LHS too. The best setup is to have the header end and muffler end almost touching so that the coupler is not exposed as much to direct hot exhaust gasses. But that can be tricky to get setup when you are adjusting the pipe length for maximum tuning effect. You do have to watch out with the clamps or Zip Ties so that they don't bite into or dig into the coupler so it gets torn or cut.
Posted on: 5/16/2013 7:42 PM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11513801

RE: F-82 Twin Mustang
wow a monster sized F-82, yes do post lots of pics, I would love to see it too. Congratulations on your find there too.
Posted on: 5/16/2013 7:37 PM by Author "earlwb" in the forum "Twin & Multi Engine RC Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=11513794

RE: Everything Radial Engines
It is hard to say if the ASP 400 radial is really all that bad, there were a small number of guys in that long running thread that had problems. But ASP has made quite a few engines though. We don't hear anything from those people who didn't have any problems. But still maybe it was the collectors scarfing the engines up for display purposes so we might not know if the engines work or not. So it may really boil down to whether you feel lucky or not.
Posted on: 5/15/2013 7:17 PM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11512713

RE: Club FOX!
OK I found the old Fox carb instructions. Fox talks about tuning the needle as needed in these. Here is the instructions from the Fox Eagle III: [IMG]http://i248.photobucket.com/albums/gg171/earlwbollinger/Old%20and%20Vintage%20Engines/Fox_MK-X_carb_needle_tuning_Eagle_III_zps05eababe.jpg[/IMG] and here is the early Fox Eagle IV with the MK-X carb instructions. [IMG]http://i248.photobucket.com/albums/gg171/earlwbollinger/Old%20and%20Vintage%20Engines/Fox_MK-X_carb_needle_tuning_eagle_IV_zpse64598e1.jpg[/IMG]
Posted on: 9/18/2012 6:54 PM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11232935

RE: *** CLUB SUPER TIGRE ***
I just realized the G51 is still being made today. So the newer engines may have used a sealed front bearing. But the older earlier engines didn't have a sealed front bearing. Normally oil oozing out of the front bearing isn't a problem as it means the bearing is getting well lubricated. But I don't know if the newer engines are using a sealed bearing or not now. But if the engine is running good and idles good, then having oil oozing out of the front bearing is not a problem. It may not be worth the effort to tear the engine down just to replace the bearings if the engine is running good. For the O-ring on the base of the carb, I just use one that fits OK from a box of assorted size O-rings I have. The O-ring isn't anything special for that purpose. As to how much oil leaks out the front or not, depends on the engine brand and design a lot. With the engine cold there may be more clearance than when it is hot and all the parts have heated up good. If you wanted to, you could put in a sheilded bearing with the inner sheild removed and leave just the outer sheild. But if the engine is running good and idling good, it probably isn't worth the effort to fix anything until the bearings need replacing.
Posted on: 9/18/2012 3:29 PM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11232677

RE: Braze on muffler nipple?
Mac's makes them for their tuned pipes http://www.macspro.com/accessories.asp here is one http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXBWL5&P=ML I think someone else makes them under their brand name too. Of course with the nut on the inside of the muffler if it ever came loose, it would be doubtful that you'd lose it. So if it works go for it.
Posted on: 9/18/2012 4:42 AM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11232133

RE: Club FOX!
Here is a video I took of me flying my old Airplane Factory Combat Airmadillo .40 RC plane this last weekend. I am using a 22 year old Fox .45 engine, with a MK-X carb, that has been on several airplanes so far and a Combat Airmadillo plane too. So here we go. [youtube]http://www.youtube.com/watch?v=4Uvy0j5aKzQ[/youtube] [IMG]http://i248.photobucket.com/albums/gg171/earlwbollinger/Airplanes%20over%20the%20years/Combat_Airmadillio_40_02.jpg[/IMG] [IMG]http://i248.photobucket.com/albums/gg171/earlwbollinger/Airplanes%20over%20the%20years/Combat_Airmadillio_40_01.jpg[/IMG] [IMG]http://i248.photobucket.com/albums/gg171/earlwbollinger/Airplanes%20over%20the%20years/Combat_Airmadillo_40_04.jpg[/IMG]
Posted on: 9/18/2012 4:36 AM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11230859

RE: Club FOX!
Cougar429, Years ago some others used Perry pumps or Robart pumps on the Fox .60 and .74 engines. Fox at the time suggested using the larger bore (.350") size MK-X carb along with a "A" low speed needle. The "A" needle had a leaner mid range taper to it, the standard low speed needle might have been called a "B" needle, I forget now. There was also a "C" low speed needle for a more rich mid-range too. Duke later quit making the A and C needles and provided instructions on changing the taper for the different purposes. You can rework the needle by chucking it up in a drill and using a stone laid against it. It is easy to get replacement needles, if you screw it up, which are much cheaper than going with an adapter for a Perry Pump carb or special OS 3 mixture control carb or Super Tigre carb. I'll look around for the instructions about making the needle change, I am sure its around here someplace. It took me a while to remember, I figured this all out after I quit messing around with the fuel pumps on a Fox engine.
Posted on: 9/17/2012 6:22 PM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11231758

RE: Braze on muffler nipple?
JPMacG, I would use the tuned pipe fitting or thinwall tubing fitting, it is easy to install from the inside and the nut goes on the outside. Just use a length of wire to thread it through and pull it up so you can slip the nut on and tighten it down. Yeah that is the larger muffler. I have had it for many years now too. Ernie Misner, it doesn't matter which glow plug you use to start the engine with. The other plug will heat up from combustion and work automatically.
Posted on: 9/17/2012 6:13 PM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11231745

RE: Gas cans for our gas motors?
[quote]ORIGINAL: SigMan just got my first gass motor and was wondering if it was ok to use my old 6 shooter. do i need to change the fuel lines on it so gas wont eat them up? [/quote] Dave Brown makes both a glow and a separate gas version. But in looking at the gas version, it looks like they used Tygon tubing inside. So one could simply replace the silcon tubing with tygon tubing if they like. Other than that it is the same pump. At first the Tygon tubing is quite stiff, but after gas gets on it for a short while it softens up and works much better when cranking the handle.
Posted on: 9/17/2012 2:33 PM by Author "earlwb" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11231474

RE: Braze on muffler nipple?
[quote]ORIGINAL: Sport_Pilot I see that is a Fox engine. But I don't think I have seen that particular carb on a Fox before. [/quote] That is arguably Duke Fox's best carb (at least until Fox put out their current carb) of the ages. A three needle Fox carb. We have a low speed, mid range and high speed needle, albeit we don't need the idle speed screw much anymore. But just think of it, you could adjust the engine for low, mid and high speed running. That sort of makes it the ultimate carb to use. When Fox first put out the .74 and later the .60 engine the three needle carb was sort of the descerning pattern flyer carb to use, not really a beginner carb for users. That carb was replaced with the Fox butterfly valve carb later though, which was replaced with the MK-X carb and then the EZ carb and finally we have the current carb that Fox produces.
Posted on: 9/17/2012 2:16 PM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11231453

RE: Gas cans for our gas motors?
[quote]ORIGINAL: pe reivers [quote]ORIGINAL: earlwb I like using the Dave Brown Six Shooter hand crank pumps for my re-fueling needs. I have used one for over 20 years no problem. So I don't mind using them at all. I am also trying out a Hangar Nine hand crank pump on another fuel jug too. It is working OK too. I decided to not use the air pressure method of refueling as there is moisture
Posted on: 9/17/2012 11:59 AM by Author "earlwb" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11231327

RE: Club FOX!
Well with some Fox engines patience is a virtue as they can take quite a lot of time to get broken in. It is one reason I tend to rebuild a old Fox engine instead of just getting a new one. I have the old one broken in and loosened up good already. But a new engine only gets better and better with each flight, it sometimes just seems the better part is taking seemingly forever to happen.
Posted on: 9/17/2012 11:51 AM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11231317

RE: Braze on muffler nipple?
Yes the high temperature silver solder is a good approach. You might be able to get a tuned pipe thin wall fitting in there too. You have to use a l;ength of wire and sort of pull the fitting in from the inside out and then put on the nut. I have a fitting on one of my DDD mufflers but honestly, I have totally forgotten about what I did to get it installed like that. Or whether it came from DDD already installed too. But it hasn't come loose on it yet. Or if it was a thinwall fitting or not. [IMG]http://i248.photobucket.com/albums/gg171/earlwbollinger/Airplanes%20over%20the%20years/Tiger_60_09.jpg[/IMG]
Posted on: 9/17/2012 11:47 AM by Author "earlwb" in the forum "Glow Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11231315

RE: Gas cans for our gas motors?
As I understand it the gasoline vapor pressure or fumes inside the jug tend to keep most of the air out as the gasoline is evaporating, thus the amount of air getting into the fuel jug is minimal. Considering all of the glow fuel plastic jugs that tend to leak fuel out of the bottom, makes me reluctant to use them to store gasoline in them too. I remember there being batches of defective glow fuel jugs being sent out from time to time. I always check the bottom of the jugs at the LHS before I buy them and so on.
Posted on: 9/17/2012 5:36 AM by Author "earlwb" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11230913

RE: Gas cans for our gas motors?
I like using the Dave Brown Six Shooter hand crank pumps for my re-fueling needs. I have used one for over 20 years no problem. So I don't mind using them at all. I am also trying out a Hangar Nine hand crank pump on another fuel jug too. It is working OK too. I decided to not use the air pressure method of refueling as there is moisture in the air and when you pump the air into the fuel container, the moisture goes in with it too. Here in the USA our gasolines have ethanol in it too, and that ethanol likes to absorbs moisture a lot. So it tends to ruin the gasoline in short order, if you live in a locale with higher humidity levels. Plus when you let the air pressure out of the jug some of the volatile compounds in the gasoline evaporate out too. Now if your plane is big and you can use up a gallon of fuel in a day flying, then this wouldn't matter. But for me a gallon of fuel can last a month so I didn't want to have the fuel become bad from using the air pressure method.
Posted on: 9/17/2012 4:57 AM by Author "earlwb" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11230873

RE: Gas cans for our gas motors?
I went a got a couple of small gallon gas jugs at Home Depot. Then I bought a couple of gas caps for a lawn mower or something. The gas cap fits onto the fuel jug just fine and seals it up good. I then drilled a hole and mounted a fuel fitting adapter into the jug. it works quite well at keeping the vapors and fumes down. Anyway check the gas caps for the lawn mowers and trimmers at Home Depot and you should be able to find one that fits the fuel jug and seal it up much better than those semi-worthless caps and spigots they put on the fuel jugs nowadays. Oh yeah I used the Dubro EZ Fill Fuel tank adapter http://www.largescalerc.com/dub807-dubroezfillfuelcapfitting.aspx
Posted on: 9/16/2012 7:30 PM by Author "earlwb" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11230547

RE: smallest Gas engines
The DLE 20cc or RCGF 15cc are really meant for .60 size planes where one could use a .60 to .91 two stroke or a .91 to 1.20 size four stroke engine in the plane. A Extra .50 size plane would not work with the engines as they are too heavy for a plane intended to use the big bore .50 size engines. I know it is a big plane though, not much smaller than a .60 size actually. So it is mighty tempting to put on the bigger, heavier engine. But that messes up the wing loading, overall weight and CG. You really want the plane to be as light as possible for a low wing loading.
Posted on: 9/16/2012 5:43 AM by Author "earlwb" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11229852

RE: smallest Gas engines
The NGH 9cc engine works OK. I know a couple of folks with the NGH 17cc engine and it is working good for them too. I haven't tried using my NGH 17cc engine yet. I clocked one of my NGH 9cc engines on a Great Planes Escapade using the Doppler shift method at 65mph. Our grass runway is rather thick and lush with the grass on it, so take offs tend to be longer. Power output is similar to a 40 to 45 glow engine. I am using a 11x7 prop on the engine at present. Actually the engine develops about the same power as the old baffled cross flow scavenged 2 stroke .60 glow engines like the Fox .60 Eagle I, K&B Veco .61, HB .61, etc. They didn't turn a 11x7 prop any better than the NGH 9cc gasoine engine does. I will say there were some trials and tribulations until I got used to the engines and figured them out. They are not glow engines and do not really behave or act like glow engines. So that may take some getting used to from people. The only mods to the engine that were done was to change the pressure fitting on the engine and pump to the larger 8x32 threaded size and use larger 1/8" fuel tubing. The other fittings are still stock using 3/32" tubing. The pump/regulator is also placed close to the carb as well. Now the NGH pump/regulator uses Walbro carb parts too. I did replace the pump diaphragm and regulator diaphragm after a short while as the rubber seemed to stretch out and get soft. I suspect our USA pump gasoline doesn't agree with the rubber parts in the pump.regulator. But since it uses standard Walbro carb parts, it isn't a big deal to fix the carbs. NGH 9cc engine in a Escapade 45 [youtube]http://www.youtube.com/watch?v=0HkMYRiLhPQ[/youtube] Of course this NGH 9cc engine was modified to use a Walbro carb, as an experiment, but it works OK too. [youtube]http://www.youtube.com/watch?v=mR2N4IM3nCM[/youtube] I remember reading a lot of peoples opinions of the SV-17cc engine and how bad it was. No power, overweight, etc. But the one example I have works quite well though. Here it is on a Great Planes Escapade .60 plane and it flies the plane well too. I suspect the stock Walbro carb had too large of a venturi on them, I replaced my engine's carb with a smaller venturi carb and it then started running great. But since it is the only example of the engine I have dealt with, I can't say what they used for carbs on the other engines. SV 17cc engine in a Escapade 60 [youtube]http://www.youtube.com/watch?v=CdkSeeCk9pg[/youtube]
Posted on: 9/15/2012 9:54 PM by Author "earlwb" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11228149

RE: smallest Gas engines
I found that instead of using two separate NMH battery packs for the CDI and radio, that I could combine them, using a single LiFePo4 2 cell pack (6.6v) and run the radio unregulated directly off the pack and use a Tech Aero Ultra-IBec to power the CDI. That saved a fair amount of weight in the airplane. So I could squeeze the 9cc gas engine into a fairly small .45 size airplane then. But your radio has to be able to handle 6.0v or so. I'll have to think about the electronic ignition system dirtybird was mentioning. Using a transistor ignition for vintage engines might do the trick. It is coming up with a way to bypass the points and use a hall effect transistor instead. But that would shrink it down more in size and weight. But it then becomes a fixed timing setup with no ignition retard then. But with a small engine, it may not matter too much. It is another thing to try out and test. If I ever get the time to do so. But maybe a rotating timing setup could still be used like they do with the vintage engines too.
Posted on: 9/15/2012 9:51 PM by Author "earlwb" in the forum "Gas Engines"
http://www.rcuniverse.com/forum/fb.asp?m=11229718